What is the best 4K TV in 2021?
There are plenty of good 4K sets on the market, but what makes one the best 4K TV? Our list focuses on sets between £1000 to £2000, with only the best 4K TVs chosen for their picture performance, sound quality and smarts.
With 2021 in full swing, it’s a good time to find yourself the best 4K TV as prices drop. Whether you’re after an OLED, QLED or LED TV, you’ll find our favourite buys from the best brands available.
For more detail on the best 4K TV to get, check out the summaries below and click on our links to the full reviews.
1. LG OLED55CX
Another feature-packed OLED
- Excellent picture quality
- Great design
- Plenty of smarts, features and customisation
- Excellent upscaling
- Still missing a few UK catch-up apps
- Just a small leap over the C9
LG’s new mid-range CX makes the top of the list not just because it offers fantastic picture quality, but that it does so for a lot less than 2019 C9 sold for when it was released. While performance isn’t a huge leap over the C9, the lower price makes it less daunting to jump into the OLED market.
The design is elegant and attractive, ensuring the CX looks good in any room. The feature set is robust with plenty of streaming apps, smart features and HDMI 2.1 for gaming, with the slick webOS interface tying everything together. The lack of Freeview Play integration means that only iPlayer is supported
Still, both native 4K and upscaled images fare excellently with the CX, with bold, natural colours and expressive contrast. We feel this set from LG is an impressively strong 4K set for the money.
- read our LG CX (OLED55CX) review
2. Panasonic TX-55HZ1500
Superb picture and accomplished audio
- Detailed, stable, entirely natural and believable images
- Bigger, better-realised sound than most TVs
- Every HDR base covered
- Decent ergonomics
- Good upscaling
- Expensive for a 55in TV
- One or two missing apps
- Sound can be bettered by a half-decent soundbar
The HZ1500 offers a few upgrades over its predecessor, which include the upfiring Atmos speakers and a screen that can swivel, handy if you want to avoid the glare of sunlight on your screen.
The picture quality, as we’ve come to expect from Panasonic, is sumptuous. With support for Dolby Vision (including the IQ version) and HDR10+, we found it delivered exceptional pictures with epic black levels, bright whites, excellent contrast and great detail.
While audio is given more space with the upfiring speakers, don’t expect the type of Atmos presentation where sounds are being pinged around the room. Nevertheless, it’s the type of excellent AV presentation that we take for granted from Panasonic – one of the best 4K TV.
- read our Panasonic TX-55HZ1500 review
3. Philips 55OLED805
A 4K Ambilight delight
- Multi-HDR support with HDR10+, Dolby Vision and HLG Freeview Play
- Play-Fi compatibility
- No support for 4K/120fps
- No Dolby Vision IQ
Impressive as Philips’ 2019 OLEDs were, their latest efforts have taken performance even further. Part of that is down to the new Philips AI-enhanced P5 picture engine, which delivers impressive images by adjusting picture quality to suit the content watched.
During the course of testing, images were delivered with almost three-dimensional depth and detail, with the Philips’ HDR performance just as impressive. And there’s Ambilight, which adds a reflective glow to whatever you watch. For gamers looking to the next-gen consoles this isn’t the best choice with no 4K/120fps support and a relatively sluggish latency. Still, for home cinema lovers, it’s a stunning set.
- read our Philips 55OLED805 review
4. Samsung QE55Q90T
A high-performance TV
- Corking picture quality from any standard of content
- Excellent for gamers
- Class-leading user interface
- Sound is nothing special
- No Dolby Vision
The Samsung Q90T is exactly like the Q95T, the only difference being that you don’t get the One Connect box, with the connections built into the rear of the speaker.
Otherwise this is an outstandingly talented TV. Upscaling is a big strength, viewing angles are excellent, and colour and detail levels are rich and precise in equal measure. Factor in a low input lag for games and our conclusion is that the Q90T is one of the best 4K TV available, especially given its price drop.
5. Samsung QE55Q80T
An excellent value QLED
- Colourful, contrasty images
- Excellent upscaling
- Class-leading gaming performance
- Good sound for a flatscreen TV
- Lacking shadow detail
- No Dolby Vision
Samsung’s Q80T is the entry-level full-array TV for their 2020, offering many of the features that you’d find in the flagship Q95T for less money.
The performance is unsurprisingly good, From its excellent upscaling of sub-4K content (which looks bright, clean and colourful), to a HDR performance that’s bright, full of colour and contrast, the Q80T is a very accomplished performer in the picture department. We tested the TV at class-leading latency of less than 10ms, the widest range of apps on an TV and built-in audio system that helps to expand the sound performance, the QE55Q80T offers excellent value for money.
Black levels are strong, though shadow detail is not as revealing. Factor in the continuing lack of Dolby Vision HDR and the Q80T doesn’t quite tick every box we’d want for a TV at this price, but you cannot argue against its quality.
- read our Samsung QE55Q80T review
6. Philips 48OLED+935
A mini-OLED marvel
- AI Intelligent Dual Picture Engine
- Four-sided Ambilight
- Dolby Atmos audio system
- No 4K 120FPS HDMI support
- Limited bass
- Smaller panel size comes with a premium
The 48OLED+935 is the smaller version of the the 65-inch model and Philips first 48-inch OLED.
At this current point in time (we’ve not yet reviewed Sony’s 48-inch OLED), this is arguably the best ‘small screen’ OLED on the market. It’s another fantastic TV from Philips in terms of design, with its OLED thin panel and integrated speaker system screaming a premium feel. In terms of smarts it’s exactly what you’d get from the bigger OLEDs with its Android UI and wide range of streaming apps and features.
The picture and sound in our estimation, are just as captivating as they are on bigger models. With Philips introducing its AI processor for its 2020 TVs, image quality is further improved with better detail, sharpness and pop given to images. A wide HDR support means this TV will support virtually any piece of content available and when it comes to sound this TV is several notches better than an average TV with its big, well-balanced performance.
- read our Philips 48OLED+935 review
7. LG OLED48CX
A no compromise, smaller sized OLED
- Beautiful picture quality
- Strong sound quality
- Class-leading gaming features
- Costs more than 55-inch version
- Care needs to be taken to avoid screen burn
- Missing most of the UK catch up apps
LG CX were the first out with their 48-inch OLED and despite the dip in size, the performance is just as good as the 55-inch model.
That means the fantastic picture quality, good sound and most comprehensive gaming-friendly connectivity on the market. Black levels remain excellent, providing a fantastic foundation for dynamic and intense colours, especially with HDR content. We didn’t feel it looked as sharp as LG’s other OLEDs, predominantly down to its smaller size, but that does mean that you can sit closer to this OLED for the best effect.
Aside from iPlayer it is still missing most of the UK catch-up apps and that the 48-inch model costs more than the 55-inch version. That makes the larger size the better value in our rankings.
- read our LG OLED48CX review
8. Sony KD-48A9
Great sound and vision
- Flat-out beautiful picture quality across all sources
- Impressively polished but minimalistic design
- Good built-in sound system
- No support for 4K at 120Hz, VRR or ALLM next-gen gaming features
- Not as bright as some rivals
- Expensive versus rival 48-inch models and Sony’s larger A8 OLED
Sony is the latest TV brand to produce a 48-inch OLED and it stands up with the best, though to be fair, there have only been three so far.
Still, this OLED takes a similar approach to Philips’ 48-inch TV in that its focus is all on picture and sound. There’s no VRR, ALLM or HFR skills to take advantage of the new gaming consoles – something of a surprise given Sony also makes the PS5.
It’s a top-notch upscaler and Sony’s implementation of motion continues to be the best in the market in our view. In terms of HDR it doesn’t go as bright as the LG can, but Sony’s processing allows for images to take on a detailed, sharp, and intensely gorgeous look. The TV’s Acoustic Surface Audio system is an impressive feat of engineering, vibrating the screen to produce sound and pushing sounds into the room. It’s cheaper than it was went it first went on sale, with prices not far off what LG is asking for their respective OLED.
- Read our Sony KD-48A9 review
9. Sony KD-55XH9505
Fabulous HDR performance
- Fabulous looking HDR images
- Customisable stand
- Entertaining audio performance
- Impressive black levels
- Excellent motion skills and upscaling
- Instances of blooming with HDR content
- No 4K/120fps support
- Android/YouView integration still a bit awkward
We guarantee you’ll be entertained by the images this Sony TV serves up. The potential of HDR is unleashed with the XH95’s dazzlingly bright, colourful and intense images. Black levels are also really well done, though the trade off with the bright HDR performance are instances of backlight bleed that may be distracting to some.
Elsewhere, to our eyes, the upscaling of sub-4K was excellent, and its motion-handling with programmes and sports is natural and one of best we’ve seen at this price. The Acoustic Multi-Audio performance is much better than what you’d expect from a flatscreen TV. Apart from the awkward integration of Android and YouView and a lack of gaming features for the new consoles, this is a very impressive TV from Sony.
- read our Sony KD-55XH9505 review
How we test the best 4K TV
Every TV that passes through our doors gets put through a series of tests and naked eye checks to gauge its overall picture quality and optimal settings. Key things we look out for are screen uniformity, black level, maximum brightness and colour vibrancy/accuracy. We also check input lag to make sure gamers won’t lose their edge when playing online.
A variety of test footage is used to cover every type of scene, so we can assess a 4K TV’s strengths and weaknesses, as well as how it performs against the competition.
Sound quality isn’t forgotten, either – we give the built-in speakers a thorough listen to determine whether you’ll need to invest in a soundbar or speaker system to beef things up so we can evaluate what is the best 4K TV.
If you’re interested in checking out TVs at different price models, models and brands. Look through our main best ofs below models for everything from cheap 4K HDR TVs, to the latest from LG, Samsung and Panasonic.