Samsung QE55Q7F 4K QLED LCD TV Review

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QLED at a more affordable price

by Steve Withers Oct 11, 2017 at 7:13 AM

  • SRP: £1,799.00

    What is the Samsung Q7?

    The Q7 is Samsung's entry level model in their QLED range of 4K TVs and comes in two versions, the Q7F which has a flat screen and the Q7C which is curved. Although QLED isn't a new technology, it's actually an LCD panel that uses edge LED backlighting, it does use a quantum dot coating to deliver brighter peak highlights and a wider colour gamut, and the term QLED has certainly caught on with other manufacturers including Hisense, TCL and Philips referring to their quantum dot LED LCD TVs as 'QLED TVs' as well.

    We're reviewing the QE55Q7F which uses a flat 55-inch 4K LCD VA panel with edge LED backlighting. The 55Q7 supports High Dynamic Range, specifically HDR 10+ and HLG, and is certified as Ultra HD Premium by the UHD Alliance. It also sports a bezel-less screen, Samsung's 360 degree design ethos, a newly designed stand and a no-gap wall mount. There's better cable management thanks to the latest version of the One Connect box and a fibre optic connection that goes from the box to the TV itself.

    The Q7 also includes a redesigned One Remote and the company's new Q Smart TV platform which combines Samsung's Smart Hub with the Q Engine which is intended to deliver a faster and more responsive system, whilst also offering the widest possible choice. Thanks to some recent price drops, the 55Q7F can currently be picked up for £1,799 as at the time of writing (October 2017), making it the cheapest way to get into Samsung's QLED range. So let's see if it offers both performance and value.


    Samsung QE55Q7F Design
    The Q7F has a flat screen and a largely metal construction, although the rear panel is composed of black plastic. It uses a bezel-less screen, with a 5mm black border around the image and has a silver metal trim around the outer edge. The black filter on the screen reflects 0.1% of ambient light, whilst an additional layer on the inside of the LCD panel itself also reduces reflections to 1.35%, resulting in only 1.45% of all ambient light being reflected by the TV. The overall design is minimalist and uses Samsung's 360 degree ethos, so even the rear panel has an attractive grooved finish, whilst the build quality is very good. The 55Q7F measures 1225 x 788 x 304mm (WxHxD) with it's stand and 1225 x 704 x 45mm (WxHxD) without, whilst the Samsung weighs 21.2kg with the stand attached.
    Samsung QE55Q7F Design
    This stand uses an angular design and is metal with an attractive brushed silver finish – it measures 820 x 305mm, it can't be swivelled and there's 90mm of clearance beneath the screen itself if you're thinking of using a soundbar. The stand attaches to the rear in a recessed section that is then covered by a removable panel and the only connections are for the One Connect box and the power cable. These can also be hidden behind a removable panel and run down inside the stand to keeps things neat and tidy at the rear. For wall mounting, the recessed area where the stand is attached can also be used with the 'No Gap Wall-Mount' which is sold separately and allows you to install the Q7 flush with the wall, although you can also use a standard 400 x 400 VESA wall bracket and spacers are included for that purpose.

    The Q7 boasts Samsung's usual attractive minimalism and decent level of build quality

    Connections & Control

    Samsung QE55Q7F Connections & Control
    The Q7 uses a larger version of the One Connect box which measures 360 x 115 x 30mm and now includes all of the connections, previously some had still been located on the rear panel of the TV. The box has a power cable of its own because whilst previous versions of the One Connect box drew power from the TV itself via the dedicated connector, the thin fibre optic cable now used makes this impossible. The box doesn't have any fans built-in, so there's none of the noise associated with earlier versions, but due to the amount of processing inside it can get warm to the touch.

    In terms of the actual connections there are four HDMI 2.0b inputs, all of which support 4K at up to 60p, High Dynamic Range (HDR10 and Hybrid Log-Gamma), Wide Colour Gamut and HDCP 2.2. There are also three USB ports, twin terrestrial and satellite tuners and an Ethernet socket for a wired connection, although naturally the Q7F also includes built-in WiFi. There is a proprietary connector for the fibre optic cable, the two pin socket for the included power cord and on the side there's a CI (Common Interface) slot, along with a connector for an Ex Out jack for the auto calibration features.
    Samsung QE55Q7F Connections & Control
    The 55Q7 includes the One Remote which is composed of metal, which feels comfortable in the hand and gives the controller a high-end appearance. There are buttons for the day-to-day operation of the TV and there's even a built-in microphone for voice control. The navigation and OK buttons are centrally mounted and around them you'll find multi-purpose controls for numbers, colours, return and play/pause. There's also a power button, a Home button and channel and volume controls, with the latter muting the volume when you press them. The remote springs open when you press the black button on the back and there are also release buttons to make changing the batteries as simple as possible.

    The One Remote also serves as a universal remote and works in connection with Samsung's auto device detection feature which covers an extensive list of potential connected sources. When the Q7F detects a new device being connected to the One Connect box via HDMI, it automatically identifies that device and sets it up in the Smart Hub. It then loads the remote control codes, thus allowing you to use the One Remote to control that connected device, as well as the TV itself. This is actually a very useful feature and it worked well with all the devices we connected directly to the TV, making it a quick and easy way of setting up, identifying and controlling all your HDMI sources with a single remote.

    As with previous models, Samsung also include their standard black plastic remote control, which has all the buttons you'll need to control the TV but lacks the style of the One Remote and of course it doesn't provide universal or voice control. If you'd rather use your smart device as a controller there's also Samsung's Smart View remote app, which is available for both iOS and Android devices. This is a simple but effective remote app that is easy to use, with the layout of the main control page designed to replicate the button layout found on the One Remote, and you can also access all the apps on the TV as well as content on your smart device.

    There's the One Remote and the larger One Connect box with a near-invisible fibre optic cable

    Features & Specs

    Samsung QE55Q7F Features & Specs
    The Q7's One Connect box utilises the dedicated 'Near-Invsible' connection, which is is a thin fibre optic cable that uses proprietary connectors and runs from the TV to the One Connect box. You simply connect the fibre optic cable to the rear of the TV and then run it to wherever the One Connect box is located and you have an almost invisible connection. The cable comes in a handy cable tube, there are bending covers to protect the cable and it's 5m long, although there is an optional 15m version for longer cable runs. You can run this cable down through the rear of the stand but if you're wall mounting it's also thin enough to be easily hidden by wallpaper.

    MORE: What is Hybrid Log-Gamma (HLG)?

    The 55Q7F uses a flat Ultra HD 4K 10-bit VA 100Hz panel with edge LED lighting along the bottom and a quantum dot layer that covers these LEDs. This quantum dot layer uses a metal core and an improved metal coating that protects the core, keeping its colour properties pure, and increasing the brightness. The Q7 is Ultra HD Premium certified by the UHD Alliance and supports two forms of High Dynamic Range – HDR10+ and Hybrid Log-Gamma (HLG).

    Along with the quantum dot layer, the Q7 also boasts a System-on-Chip (SoC) that uses four-way processing, which Samsung claim can deliver a wider optimal viewing angle with an improved contrast and colour performance. There's also the Q Engine which is Samsung's latest processor and uses algorithms to analyse source signals, applying image processing to optimise the picture quality. The Q7F also has a light sensor that, when activated, can adjust the brightness and contrast performance depending on the ambient light in the room
    Samsung QE55Q7F Features & Specs
    The Smart Hub uses Samsung's Tizen-powered platform and offers a launcher bar as a single access point for all your content and that doesn't just include apps but also various smart devices, making the TV a genuine smart hub in your home. There is a newly designed EPG that includes IP channels, as well as all the premium UHD HDR content from providers such as Netflix, Amazon and YouTube, along with NOW TV and all the catch-up services. All you need to do is select something from the launcher bar and a series of choices appear on another tier above that, making it easy to access all your favourite content. There's also the option of customising the launcher bar, making it even easier to access the features you use regularly.

    The Q7F is loaded with features including Samsung's Q Engine and their latest Smart Hub

    Picture Settings – Out-of-the-Box

    As with all of Samsung's TVs this year, the menu system has had a slight makeover, so the default Brightness setting is now zero, BT.1886 is the default gamma curve for SDR content, although you can adjust this, and there is now a 20-point white balance control. Annoyingly from a calibration perspective, you can't turn the local dimming off and instead you have to choose between Low, Standard and High. Samsung have also added two new picture modes – Cal-Day and Cal-Night – although these are only available once the auto cal feature has been run, after which they are permanently added to the service board. All our measurements were taken with a Klein K-10A colour meter, a Murideo Fresco Six-G pattern generator and CalMAN Ultimate calibration software. For more information on how to correctly set up your Samsung TV, you can take a look at our PicturePerfect Guide.
    Samsung QE55Q7F Picture Settings – Out-of-the-Box
    As you can see in the graph above, the out-of-the-box greyscale was reasonably good with all the DeltaEs (errors) at or below the visible threshold of three. However there was a slight defect of red across most of the scale, which gave whites a slight cyan tinge, although most people probably wouldn't notice. We found that leaving the gamma setting at BT.1886 gave us a result closest to our target of 2.4, with a slight peak of 2.5 at 10IRE and a dip down to 2.3 at 80IRE. Although the out-of-the-box performance was fairly accurate, the measurements were on the line and the more expensive Q8C and the cheaper MU7000 both did better in this regard.
    Samsung QE55Q7F Picture Settings – Out-of-the-Box
    The colour gamut performance using the Auto Colour Space was also reasonably good but there were some minor errors, especially in terms of the saturation of red and the hue of green and magenta. However these errors are quite small and the luminance performance, which isn't shown in the graph above, was actually very good and overall this was a decent performance. The Q7F offers both manual and automatic calibration options, so we would expect to be able to improve on the accuracy of both the greyscale and colour gamut.

    The out-of-the-box image accuracy was reasonable but could have been better

    Picture Settings – Calibrated

    We tested both the traditional manual calibration tools and Samsung's new auto calibration feature which was developed in conjunction with Spectracal, who created CalMAN. The results using the Auto Cal feature are shown in the CalMAN screenshots below:

    MORE: Should I get my TV professionally calibrated?

    Samsung QE55Q7F Picture Settings – Calibrated
    Samsung QE55Q7F Picture Settings – Calibrated

    The auto calibration feature is primarily aimed at professional calibrators because, although you can get an accurate greyscale manually, the auto calibration feature does allow you to bypass the local dimming. As a result the gamma is more precise and the ability to set the DeltaE tolerance means that you can get highly accurate results. Of course you don't have to be a professional calibrator to use the auto calibration feature but you will need a colour meter, pattern generator and CalMAN software. You'll also need to get hold of a 3.5mm to serial cable and a matching serial to USB adapter, that allows you to connect the Ex Out jack on the One Connect box to your laptop.

    Once everything is connected you run the Home Enthusiast workflow on CalMAN and use Direct Display Control to control the Q7F directly along with your pattern generator and colour meter. Although it defaults to 0.5, you can set the Auto Cal to calibrate to any chosen tolerance level for the greyscale, gamma and colour gamut. The software is quick and easy to use and delivered a very accurate greyscale and gamma. The colour gamut wasn't as good because although the 100% saturation points were accurate, many of the lower saturation points were off, so we preferred to manually calibrate for the colour gamut or, alternatively, you could just leave the Colour Space set to Auto.
    Samsung QE55Q7F
    As we mentioned in the previous section, the Auto Calibration was actually better for calibrating the greyscale and gamma because it by-passed the local dimming but we were still able to get a pretty accurate greyscale manually. We started by bringing up red using the 2-point control and then fine tuned using the 20-point. The result was a very accurate greyscale with equal amounts of red, green and blue across the entire scale. The gamma was more difficult to calibrate without being able to turn off the local dimming and although we wanted it to track our target of 2.4, we ended up with a curve that dipped down to 2.3 at 20IRE and was just below 2.5 at the higher part of the scale. However all the errors were below two and most were below one, so we were ultimately happy with the results.
    Samsung QE55Q7F
    Once we had calibrated the greyscale, white fell precisely on to its target of D65, which is the industry standard for the colour temperature of white. We then selected the Custom colour space, which gives you access to the colour management system, and we were able to fine tune the majority of colours so that they tracked the target saturation points for the industry standard of Rec.709. Although red was slightly over-saturated at 25% and undersaturated at 75%, the remaining colours were tracking very accurately and all the hue errors had been eliminated. The luminance performance, which is actually the most important aspect and isn't shown on the graph above, remained spot-on and overall this was an excellent colour performance.

    The accuracy was excellent after calibration and the auto cal feature proved very effective

    Picture Settings – High Dynamic Range

    The Q7F will automatically go into the HDR mode when it detects an appropriate signal, so for HDR10 material it will default to ST.2084 and for Hybrid Log-Gamma content it will default to HLG. As you can see in the graph below, for an HDR10 signal the EOTF (Electro Optical Transfer Function) tracked very closely to the SMPTE 2084 (PQ) target, with the luminance rolling off around 70IRE. The greyscale is tracking very well and overall the errors were mostly below two, except where the curve rolls off at 70IRE, where there is an increase. The 55Q7 also did an excellent job of tone mapping a 10,000 nit signal to its native peak brightness without introducing any unwanted clipping.

    MORE: What is High Dynamic Range (HDR)?

    Samsung QE55Q7F Picture Settings – High Dynamic Range
    In terms of an accurate picture mode, we measured the peak brightness of the Q7F at 1150nits using a 10% window and 472nits on a 100% full field pattern. This is a fairly high measurement, especially for an edge-lit LED TV, but for the best results you will need to be sat central to the screen, However the positioning of the LEDs at the bottom of the screen means that you will get columns of light on certain content and this was normally most obvious on the black bars on letterboxed movies. So, unsurprisingly, although the 55Q7 is bright the edge-lit nature of its backlight and the position of those LEDs is the limiting factor in its HDR performance.
    Samsung QE55Q7F Picture Settings – High Dynamic Range
    The use of quantum dot technology doesn't just result in brighter peak highlights, it also means a wider colour gamut and we measured the Q7F at 95% of DCI-P3 using xy and 98% using uv coordinates, which equates to over 74% of Rec.2020. These numbers are slightly smaller than the Q8C we reviewed earlier in the year but overall the 55Q7 does deliver bright specular highlights and a wide colour gamut. The graph above shows how the Samsung tracked against Rec.2020 and, within the limitations of its native colour gamut, it was reasonably good.

    MORE: What is Wide Colour Gamut (WCG)?

    Samsung QE55Q7F
    The graph above shows how the Q7F tracked against the DCI-P3 saturation points within the Rec.2020 container and the TV performed very well, with the primary and secondary colours tracking their targets closer than they did in the Rec. 2020 test. There was some under-saturation of red but in general all the other colours were near their targets which resulted in saturated and natural-looking images with actual HDR content.

    In their marketing Samsung have been emphasising their QLED TV's colour volume, which is a combination of peak brightness and maximum colour gamut. The Q7F didn't have as big a colour volume as the Q8C because the latter TV is slightly brighter and has a slightly wider colour gamut but it was still able to deliver 378 million distinguishable colours. This measurement, which is based on 393 data points, represents the Perceptual Colour Volume and uses the PQ EOTF out to 10,000nits and the Rec. 2020 colour gamut measured using the ICtCp colour graph to take into account human visual perception.

    The colour volume wasn't as big as the Q8C but this is a bright TV with a wide colour gamut

    Picture Quality

    Black Levels & Contrast Ratios

    As we mentioned earlier you can't actually turn off the local dimming on the Q7F, or any of Samsung's other 2017 models, so we were unable to actually measure the VA panel's native black level. However, with the local dimming set to low we measured black at 0.0017nits and in the High mode we got 0.0009nits, which means the Q7 is capable of delivering an almost black image even in a darkened room. The 55Q7F had absolutely no problems reaching our target of 120nits for a nighttime mode and that resulted in an on/off contrast ratio of 70,000:1 with the local dimming in the low setting. However that number isn't representative of real world content and using a checkerboard pattern we measured a far less impressive 1,500:1, which we suspect is a byproduct of the limitations of only having one row of LEDs along the bottom.

    Backlight Uniformity

    Despite the inherent limitations of only having LEDs located along the bottom of the panel, the backlight was surprisingly even. This is an area where Samsung are particularly accomplished and their backlight uniformity is often better than the competition. We tested the 55Q7F in its three local dimming modes in a darkened room and the uniformity on a 5% window was very good. There was some minor lighter edges at the bottom where the LEDs were located but the pattern was free of any obvious clouding or dirty screen effect. We were also pleased to see that Q7 was able to avoid visible banding, which meant football looked good with a bright, saturated and detailed image and no obvious banding as the camera panned across the pitch. The filter on the front of the screen also proved very effective, rejecting any ambient light and delivering impressive blacks levels when watching during the day.

    Local Dimming & Viewing Angles

    Whilst Samsung are quite skilled at delivering an even backlight, they are just as adept when it comes to local dimming and their systems are often among the best. The local dimming on the Q7F was quite effective with standard dynamic range content and using a test pattern that moves a white circle around the screen, the results looked good, with nice definition and no haloing. However once you switched to an HDR signal the brightness increases dramatically and then there was some haloing around the the circle, although the local dimming was still fairly precise as it moved around the screen. The local dimming was also quite effective at retaining shadow detail within darker images, as evidenced using the scene where Voldemort's army amasses over Hogwarts, but once again it is limited by the position of the LED backlight.

    In general with full frame SDR material the images were impressive and the 55Q7 could also handle letterboxed films reasonably well, although it struggled with our Gravity torture test, where as Sandra Bullock's character tumbles through space. This scene involves a single bright white object against a black background and whilst the Q7 was able to retain the detail in the star field, there was an obvious column of light, especially when watching in a dark room. When it came to HDR it often depended on the aspect ratio of the content and whilst a full screen image like Planet Earth II could look stunning, in darker scenes on letterboxed films the black bars would begin to look dark grey rather than completely black, especially at the bottom. Since that's where the LEDs are positioned we really can't see how the Q7F could avoid this issue.

    The Q7F uses a VA panel which means it has excellent black levels, for an LCD TV, but sadly there's a trade off and that means the optimal viewing angles are also limited. So in order to ensure that you minimise haloing as much as possible, especially with HDR content where the brightness is at maximum and the local dimming is set to high, you need to be sat central to the screen. Samsung claim that their QLED range of TVs have improved viewing angles but in reality once you move more than 30 degrees off axis in either direction, you will see a drop off in contrast and colour performance and the haloing from the local dimming is more noticeable. You will also see similar problems if you are looking up or down at the screen, so bear that in mind when installing the 55Q7F and try to ensure that the main seating positions are as central as possible.

    Motion Handling

    The motion handling of the Q7F was actually very good, within the inherent limitations of LCD technology, and the images were free of the stuttering and frame dropping that we have experienced with Samsung TVs in the past. The Q7 performed well in our motion tests and delivered a motion resolution measurement of around 300 with Auto Motion Plus off, which is to be expected, and a full 1080 lines with it on. of course, if you use Auto Motion Plus on the Auto setting it does smooth the motion thanks to the frame interpolation, which can adversely affect film-based content, making it look like cheap video. To avoid this 'soap opera effect' we would always recommend turning frame interpolation off for film-based content but with sport-based content, which is shot on video, there is certainly room for experimentation. The custom setting, where you can customise the blur and judder controls to your own tastes can be quite effective with sport and there is also the LED Clear Motion setting which can be useful. This feature uses black frame insertion to improve motion resolution but, by inserting black frames between existing frames, it also reduces the brightness of the image and can cause flicker with some people. So whilst it can deliver a better sense of motion, even with movies, it won't be for everyone but there's certainly no harm in giving it a try.

    Standard Dynamic Range (SDR)

    We tested the Q7F under two distinct environments, the first was with ambient light in the room, either sunlight during the day or with the lights on at night. In these conditions the Q7 proved very adept, delivering bright and colourful images that retained plenty of detail and a pleasing level of accuracy. Standard definition content looked surprisingly good and whilst it only forms a very small part of our viewing content these days, the 55Q7 deinterlaced and scaled the content very effectively. The combination of the excellent greyscale, gamma, colour performance and generally effective local dimming of the Samsung all helped to deliver some very pleasing images.

    The same was equally true of high definition content, where the Q7 was able to take full advantage of the additional resolution, delivering detailed images thanks to the impressive video processing and the excellent greyscale, gamma and colour accuracy. Once again the 55Q7F delivered some lovely images and it also performed very well in an environment with ambient light, so the black levels and shadow detail appeared excellent, there was no obvious haloing or screen uniformity issues and the black filter was very effective. The excellent high definition images also applied to Blu-ray content and recent purchases like Get Out, The Lost City of Z and The Handmaiden all looked gorgeous.

    However we also tested the Q7 in a darkened room and here the TV didn't perform as well, primarily because of the location of the LEDs. All the other positive factors still applied and the local dimming, screen uniformity and decent black levels were even more important in these conditions. However in certain scenes, and Gravity was a good example, the location of the LEDs resulted in a column of light, which could be distracting. It did very much depend on content but darker material in a dark room was certainly prone to this issue. The viewing angle was also more important at night, with the fall in contrast and haloing becoming more obvious off axi, although the picture could often look very good when viewed centrally.

    High Dynamic Range (HDR)

    The Q7 is billed as a superior performer in terms of High Dynamic Range and in many respects that is true. It can deliver over 1000nits on a 10% window and nearly 500nits on a 100% full field pattern which, when combined with a colour gamut that is 98% of DCI-P3 and some very effective tone mapping, can deliver a really impressive HDR experience. The 4K images were highly detailed, especially on native 4K films like The Revenant or Passengers, and the colours appeared saturated but natural. The peak highlights were nicely rendered and the increased brightness of the panel meant that the specular highlights had impact, whilst the overall images in darker scenes weren't overtly dark. The Q7F retained some excellent shadow detail as well and the local dimming managed to keep blacks reasonably dark, whilst bright scenes often looked spectacular. The tone mapping was generally excellent and the 55Q7 handled the 'Arriving in Neverland' scene in Pan correctly, with the circle of the sun clearly visible above the edge of the mountain.

    However Pan also revealed the limitations of the Q7, with the very next scene showing the pirate ship flying through a dark tunnel with a bright opening at the end. In HDR the local dimming struggled to keep the black bars black in this scene and often failed when there was a bright object against a dark background. The real torture test for any HDR display is the hyenas at night scene in Planet Earth II, which is composed almost entirely of dark images, blacks and shadows. The backlit nature of the Q7F and it's use of an LCD panel was very obvious in this scene, with the increased brightness of HDR resulting in grey blacks and the higher local dimming setting producing haloing around the hyenas glowing eyes. It is an extreme example but it shows the problem of trying to produce over 1000nits of peak brightness from a TV where the LEDs are along the bottom of the panel. It's a shame because for most HDR content the images looked spectacular but every now and then the limitations become all too clear, especially in a darkened room.

    The 55Q7 could deliver a great-looking picture, especially in a room with ambient light

    Sound Quality

    The 55Q7 was capable of delivering a surprisingly good audio performance considering how slim the panel is, which suggests that Samsung's recent investment in sound technology is paying off. Although the Q7F's screen size was only 55-inches there was a reasonable sense of stereo separation which resulted in a decent front soundstage. The speakers themselves are housed in the bottom of the panel where it's wider and they were large enough to reproduce the mid-range and high frequencies quite well. Dialogue always remained clear and centred, whilst music was nicely rendered. Of course the bass response is never going to compete with even a cheap soundbar but the low frequency performance of the woofer was certainly sufficient for general TV watching. The Q7F has 40W of built-in amplification in a 2.2-channel configuration that uses downward- and front-firing drivers, meaning that it could go reasonably loud without becoming harsh or brittle. The soundstage produced by the 55Q7F was certainly big enough for the average sized living room and the TV can decode Dolby Digital Plus and DTS and also supports both Bluetooth and Multiroom Link.

    As we had seen on other Samsung TVs recently, the input lag was incredibly low at 17.4ms

    Input Lag & Energy Usage

    We measured the input lag on the Q7F using our Leo Bodnar tester, combined with an HD Fury Integral to inject HDR metadata and an HD Fury Linker to upscale the signal to 4K. Since we had recently reviewed the MU7000, we weren't surprised to discover an input lag of just 17.4ms in Game mode. This is among the lowest lags we've ever measured and the 55Q7 was capable of this latency regardless of whether the signal was SDR, HDR, 1080p or 4K – making this TV a great choice for gamers.

    We would always recommend using the Game mode when gaming because the other modes increase the lag to 79ms and you should also avoid using the Auto Motion Plus frame interpolation feature because even in Game mode this will increase the input lag to 79ms as well. We found that a 4K HDR game like Horizon Zero Dawn looked superb on the Q7 and the gaming experience was excellent with responsive game play, smooth motion, impressive HDR and no concerns about screen burn.

    The 55Q7F proved to be reasonably efficient in terms of energy consumption and using a full window 50% white pattern we measured our calibrated Cal-Night mode at 60W and our calibrated Cal-Day mode at 82W, whilst the Standard mode that the TV ships in was drawing 76W. Of course given the brightness of the Q7 it shouldn't come as a surprise to discover that once we moved on to the HDR mode the level of energy consumption increased to 142W.

    How future-proof is this TV?

    4K Ultra HD Resolution
    HDR Support
    Colour Space (percentage of Rec.2020 - 100% best) 74%
    10-bit Panel
    HDMI 2.0 Inputs
    HDCP 2.2 Support
    HEVC Decoding
    4K Streaming Services
    Smart TV Platform
    Picture Accuracy Out-of-the-Box (score out of 10) 8
    What do these mean?


    OUT OF


    • High peak brightness
    • Effective local dimming on SDR
    • Wide colour gamut
    • Very low input lag
    • Simple setup and operation
    • Excellent feature set
    • Good design and build quality


    • Local dimming struggles on HDR
    • Narrow optimal viewing angle
    You own this Total 5
    You want this Total 0
    You had this Total 0

    Samsung QE55Q7F 4K QLED LCD TV Review

    Should I buy one?

    The Samsung Q7 is certainly a very capable TV and for those who are interested in buying a QLED model but find the price of the Q8 a bit steep, it makes for an ideal alternative. The Q7F has all of Samsung's usual flair, with an attractive design and a decent level of build quality. There are features galore on this TV with the One Connect box using a near-invisible fibre optic cable and the One Remote offering auto device detection and universal control. The Smart Hub delivers an effective launcher bar combined with a comprehensive set of video streaming services, making it one of the best smart platforms available. The sound quality is surprisingly good for a TV this thin and the input lag is incredibly low at 17ms, making this a great TV for gamers.

    The menu system has had a makeover and although there are some useful new calibration features, there are a few annoying idiosyncrasies too. However the auto calibration is very effective and the image accuracy, especially after calibration was excellent. The 55Q7 certainly boasts plenty of picture features with a 4K panel, edge LED backlighting, local dimming and support for both HDR10+ and HLG. The use of quantum dot technology results in brighter peak highlights, a wider colour gamut and Ultra HD Premium certification. The Q7 has a fairly large colour volume, although not as big as the Q8, and it can deliver excellent images with both standard and high dynamic range content. The motion handling is also good, whilst the use of a VA panel delivers excellent blacks for an LCD TV, although the viewing angles are limited.

    The only major limitation of the Q7F relates to the location of the LEDs at the bottom of the screen, which can result in columns of light in certain circumstances. The bright colourful images that the TV can produce, combined with Samsung's excellent local dimming and an effective black filter on the screen means that the Q7 is at its best in a room with some ambient light. However in a darkened room or with very dark material then the location of the LEDs becomes more apparent. This issue is particularly noticeable with HDR content where the brightness and local dimming settings are higher. However for the majority of TV viewing the Samsung QE55Q7F delivers a generally excellent performance and thanks to its recent price reductions is certainly worthy of recommendation.

    What are my alternatives?

    That really depends on how important HDR is to you because if you think it will form a large part of your viewing going forward, then you might want to consider the Q8C with its even larger colour volume. However the Q8 does have a curved screen which isn't for everyone and in most other respects the Q7F offers all the same features, plus the QE55Q8C costs an extra £700. However, if you don't feel that HDR is a big deal then you might want to consider the UE55MU7000. This TV is a bit more restricted in terms of HDR but it offers many of the same features and only costs £999, making it a bit of a bargain.

    Of course if the idea of OLED rather than QLED appeals to you and you prefer the superior blacks of this self-emmisive technology then there really is only one alternative. You can currently pick up the LG 55B7 for the same £1,799 asking price and when you consider that the B7 includes HDR10, HLG and Dolby Vision support, along with Dolby Atmos and WebOS, it's a very tempting proposition. Yes the B7 isn't as bright as the Q7 but in all other respects it's the equal or the superior of the Samsung and is capable of delivering some truly impressive images, making it the TV to beat at the moment.

    MORE: Read All 4K Ultra HD TV Reviews

    Suggested retail price when reviewed: £1,799.00

    The Rundown

    Contrast/Dynamic Range/Black Level


    Screen Uniformity


    Colour Accuracy


    Greyscale Accuracy


    Video Processing


    Picture Quality


    Picture Quality Out-Of-The-Box


    Picture Quality Calibrated


    Sound Quality


    Smart Features


    Build Quality


    Ease Of Use


    Value for Money




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