Disclosure: As an Amazon Associate I earn from qualifying purchases. This guide contains Amazon affiliate links, and we may earn a commission — at no extra cost to you — but it never changes our rankings.
Under £400 is where a UK television stops being a compromise. Every pick in this guide is 4K, most are 43 inches — the size that fits the alcove-and-chimney-breast layout of a typical British sitting room — and one stretches to 50 inches without leaving the bracket. What you do not get at this price is a high-refresh gaming panel: none of these sets publishes 120Hz or 144Hz, so if you want your PS5 or Xbox Series X running above 60fps, that budget starts higher. What you do get is a real choice of smart platform and a real choice about live TV. Fire TV appears on three picks, Roku on one, and LG's webOS, Philips' Titan OS and Samsung's Tizen on one each — and the platform, not the panel, is what you will notice every evening. On live television the split is between Freely, which streams BBC, ITV, Channel 4 and Channel 5 over your broadband with no aerial at all, and Freeview Play, which still expects an aerial socket in the room. Two picks here list Freely and one lists Freeview Play; on the rest, live UK channels come from an aerial or from individual catch-up apps. Sort that out before you sort out the panel.
Buying guide
What to look for in TVs Under £400
143 inches suits a UK sitting room at roughly 1.6–2.2 metres, and 50 inches wants around 2–2.5 metres — measure from the sofa to the wall before you decide, because the alcove usually decides for you.
2Every pick here is 4K, but almost no UK broadcast television is: Freeview and Freely output at 1080i or below, so the upscaling engine — Hisense's Hi-View AI, Toshiba's TRU, LG's α7, Philips' Pixel Precise — is doing most of the visible work.
3Check the live-TV route before you buy: Freely needs only broadband and no aerial, Freeview Play needs an aerial socket in that room, and a set with neither leaves you on catch-up apps or a set-top box.
4None of these sets publishes a refresh rate above 60Hz. For 4K console gaming at 60fps they are fine; for 120fps you need to look above this price bracket.
5HDR formats are not interchangeable — Dolby Vision and HDR10+ both do dynamic, scene-by-scene tone mapping, and which one you get depends entirely on the set, so match it to what you actually stream.
6Look for the published energy label class: at 43–50 inches the gap between classes shows up on a UK electricity bill over a few years, and it is the only efficiency figure retailers must state.
Our process
How we choose our picks
We don’t lab-test products ourselves. Instead we synthesise the strongest independent evidence — current Amazon UK listings, verified-buyer feedback, published specs and UK pricing — into clear, honest recommendations. We earn a commission if you buy through our links, but that never changes which products we rank.
Current UK availability
We only shortlist products actively listed and in stock on Amazon UK, checked against live catalogue data — not last year’s models.
Publicly visible buyer feedback
We look at how each product is received by UK shoppers — its overall rating standing and the praise or complaints that recur in public reviews — rather than relying on a single reviewer’s opinion.
Published specs & value
We compare manufacturer specifications, typical UK price bands, warranty and running costs so each pick is right for a real budget and use-case.
UK-specific fit
We factor in UK voltage, plug/fitting standards, CE/UKCA marking and Consumer Rights Act cover — details that generic global lists miss.
Product prices and availability are accurate as of 22 Aug, 22:45 (London time) and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.
Editor's Note
The Toshiba UF26 is the outlier in this guide and the reason it takes the top spot: it is the only 50-inch set here, and it pairs that extra screen area with Dolby Vision, Dolby Atmos tuned with Onkyo, and Freely for aerial-free live TV. That combination normally sits a bracket higher. The Hisense 43E6QTUK is the more conservative recommendation — Hi-View AI upscaling plus a direct-lit full-array backlight is a sensible pairing when most of what you watch is upscaled broadcast content rather than native 4K. The HYE 43-inch is the only pick here to publish a Quantum Dot panel, which is a genuine point of difference, but it is thin on published specification: no HDR format, no refresh rate and no brightness figure to support the QLED claim.
Our Take
The honest summary of this bracket: buy on screen size and smart platform, not on spec sheet. The Toshiba gives you the most screen and the best-documented picture and sound stack, the Hisense gives you the best upscaling for British broadcast content, and the LG gives you the most polished platform with AirPlay 2 and Filmmaker Mode. Everything else here is a variation on those three arguments at a slightly lower price.
Questions & answers
Frequently asked questions
Can you get a decent 4K TV for under £400 in the UK?
Yes — every pick in this guide is 4K, and the bracket now includes 43-inch sets from LG, Hisense, Philips and Amazon as well as a 50-inch Toshiba. What you sacrifice compared with more expensive sets is panel technology and refresh rate: none of these publishes above 60Hz, and only one publishes a Quantum Dot panel. Picture processing has improved enough that upscaled HD broadcast content looks noticeably better than it did on budget sets a few years ago.
What size TV should I buy for a UK living room under £400?
43 inches is the default at this price and suits most British sitting rooms, where the sofa typically sits 1.6–2.2 metres from the TV wall. If your room is deeper — an open-plan kitchen-diner or a through lounge at 2.5 metres or more — the 50-inch Toshiba UF26 in this guide is the only pick that gets you to that size within budget.
Do TVs under £400 support Freely?
Some do. In this guide the Toshiba UF26 and the Hisense 43E6QTUK both list Freely, which streams live BBC, ITV, Channel 4 and Channel 5 over your broadband and removes the need for an aerial entirely. The VELTECH pick lists Freeview Play instead, which still requires an aerial for live channels but adds catch-up. The remaining picks leave live UK television to individual apps or a set-top box.
Is a £400 TV good enough for PS5 or Xbox Series X?
For 4K at 60fps, yes. None of the sets in this guide publishes a refresh rate above 60Hz, so games that support 120fps modes will not run at their full frame rate. The LG 43UA75006LA publishes 60Hz explicitly and is the clearest about what you are getting. If high-frame-rate gaming is your main use, budget above this bracket for a 120Hz panel with HDMI 2.1.
Which smart TV platform is best under £400?
Fire TV is the most common at this price — the Toshiba, Amazon and Xiaomi picks all run it — and it is the natural fit for a Prime Video household with Alexa elsewhere in the house. Roku, on the VELTECH, is the simplest interface. LG's webOS adds Google Cast and Apple AirPlay 2 for mirroring, Philips runs Titan OS, and HYE licenses Samsung's Tizen with the Gaming Hub. All of them carry the main UK streaming apps; the differences are in interface, voice assistant and how heavily the home screen promotes its own content.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. UKPicks earns a small commission from qualifying purchases made via links on this page. This does not affect our editorial recommendations or the price you pay.
