TV manufacturers have trimmed bezels to the point where decent built-in speakers are an afterthought. A smart soundbar fixes that in a single HDMI cable — delivering Dolby Atmos height effects, streaming apps, and voice assistant control without a separate amplifier or a tangle of wires. Whether you are after cinema-grade surround sound or simply a cleaner, louder alternative to tinny TV audio, the UK market in 2026 offers compelling options at every price point.
What to look for when buying a smart soundbar in the UK
Dolby Atmos. True object-based surround sound that places audio in three-dimensional space. Higher-end bars use upward-firing drivers to bounce sound off the ceiling; budget models simulate the effect in software. The difference is audible on a good room.
HDMI eARC. Enhanced Audio Return Channel lets the soundbar receive lossless Dolby TrueHD and Atmos tracks from your TV over a single HDMI cable, replacing optical connections that strip out the full-resolution audio. If your TV has an eARC port (most sets made after 2019 do), use it.
Voice assistant compatibility. The leading bars support Amazon Alexa and/or Google Assistant natively, letting you control playback, adjust volume, and query your smart home devices by voice. Some, like Sonos, also offer their own voice control layer.
Multiroom audio. If you already own wireless speakers, check whether the soundbar joins the same ecosystem. Sonos bars slot straight into a Sonos whole-home system; Samsung soundbars with Q-Symphony sync with compatible Samsung TVs; and most flagship bars now support Apple AirPlay 2 for iCloud-household sharing. See our guide to the best multiroom speakers in the UK for a broader look at whole-home audio.
Sonos Arc — best overall
Approximate UK price: £649–£799 (prices vary by retailer). The Sonos Arc remains the benchmark for a single-bar smart soundbar. Its eleven-driver array includes upward-firing speakers on both ends that deliver convincing Dolby Atmos height effects without dedicated rear speakers. It connects via HDMI eARC, supports Dolby Atmos (including TrueHD Atmos), and integrates seamlessly into a wider Sonos multiroom system — add a pair of Era 300s or Era 100s as rears and you have a genuinely formidable home cinema setup.
Voice control comes from Amazon Alexa and Sonos Voice Control built in. The Sonos app handles everything from room grouping to EQ. If you already own other Sonos hardware, the Arc is the natural soundbar choice. If you want to know more about Bose's voice-speaker line-up as an alternative ecosystem, see our Bose Smart Speaker UK review.
- Channels: 5.0 (bar only) / expandable to 7.1.4 with optional accessories
- eARC: Yes
- Dolby Atmos: Yes (including TrueHD Atmos)
- Voice assistant: Amazon Alexa, Sonos Voice Control
- Multiroom: Sonos, AirPlay 2
Samsung HW-Q990D — best for Samsung TV owners
Approximate UK price: £699–£999 (prices vary by retailer). The HW-Q990D is Samsung's 2024 flagship and represents the most complete out-of-the-box surround sound package on this list. It ships with a wireless subwoofer and a pair of wireless rear speakers, forming an 11.1.4-channel system with 22 individual drivers. RTINGS.com scored it 8.6 for mixed usage, highlighting balanced audio and powerful bass extension down to around 27 Hz. Pair it with a compatible Samsung TV and Q-Symphony lets the TV's own speakers contribute to the sound field — a neat trick.
Two HDMI 2.1 inputs support 4K/120Hz pass-through, making this a strong choice for PS5 and Xbox Series X gaming setups. It also includes Alexa, AirPlay 2, Spotify Connect, and Bluetooth 5.0.
- Channels: 11.1.4 (with included rears and sub)
- eARC: Yes
- Dolby Atmos: Yes
- Voice assistant: Amazon Alexa
- Multiroom: AirPlay 2, Spotify Connect
Bose Smart Soundbar 900 — best for music
Approximate UK price: £783–£899 (prices vary by retailer). Bose's PhaseGuide technology steers sound into precise beams, and the nine-driver array includes two upward-firing dipole transducers that work with TrueSpace spatial processing to upmix virtually any source into a wide surround field. It is a particular standout for music listening — stereo streaming sounds broader and more open than on most rivals.
ADAPTiQ room calibration (five microphone positions) optimises the EQ for your specific space. Alexa and Google Assistant are both built in, and AirPlay 2 plus Bluetooth make multi-device streaming simple. Optional Bose Bass Module and Surround Speakers can extend the system further, though at a substantial additional cost.
- Channels: 5.0.2 (bar only)
- eARC: Yes
- Dolby Atmos: Yes
- Voice assistant: Amazon Alexa, Google Assistant
- Multiroom: Bose SimpleSync, AirPlay 2
LG SP11RA — best for high-resolution audio
Approximate UK price: £799–£1,099 (prices vary by retailer). LG's SP11RA is a 7.1.4-channel system that ships with a wireless subwoofer and rear upward-firing speakers straight out of the box, and its Meridian Audio-tuned signal processing delivers 24-bit/192 kHz Hi-Res Audio playback — a step beyond what most rivals offer. The 770 W total output means it can fill large rooms without strain.
DTS:X is supported alongside Dolby Atmos, giving full compatibility with whichever object-audio format a disc or streamer sends. Google Assistant and Alexa are both built in, and the HDMI eARC connection handles lossless audio handshakes. At 144 cm wide, it suits TVs of 55 inches and above.
- Channels: 7.1.4 (with included rears and sub)
- eARC: Yes
- Dolby Atmos: Yes
- Voice assistant: Amazon Alexa, Google Assistant
- Multiroom: AirPlay 2, Bluetooth
Amazon Fire TV Soundbar Plus — best value
Approximate UK price: £199–£249 (prices vary by retailer). For buyers who do not need a true multichannel system, the Fire TV Soundbar Plus is a remarkably capable 3.1-channel bar at a fraction of the cost of the options above. Three full-range drivers, three tweeters, and two woofers handle Dolby Atmos (virtual, via processing) and DTS:X, and an HDMI eARC port means no compromises on audio input. Alexa is built in — as you would expect from an Amazon product — and Bluetooth handles wireless streaming from phones and tablets.
There are trade-offs: no Wi-Fi multiroom beyond Alexa Cast, no rear speakers in the box, and the Atmos effect is software-simulated rather than physics-based. But as an entry point into smart soundbars, or as a spare-room upgrade, it is hard to beat at this price.
- Channels: 3.1 (bar only)
- eARC: Yes
- Dolby Atmos: Yes (virtual)
- Voice assistant: Amazon Alexa
- Multiroom: Alexa Cast, Bluetooth
Comparison table
| Product | Approx. Price | Dolby Atmos | eARC | Voice Assistant | Multiroom |
|---|---|---|---|---|---|
| Sonos Arc | £649–£799 | Yes (TrueHD) | Yes | Alexa, Sonos VC | Sonos, AirPlay 2 |
| Samsung HW-Q990D | £699–£999 | Yes | Yes | Alexa | AirPlay 2, Q-Symphony |
| Bose Smart Soundbar 900 | £783–£899 | Yes | Yes | Alexa, Google | Bose SimpleSync, AirPlay 2 |
| LG SP11RA | £799–£1,099 | Yes | Yes | Alexa, Google | AirPlay 2 |
| Amazon Fire TV Soundbar Plus | £199–£249 | Yes (virtual) | Yes | Alexa | Alexa Cast, Bluetooth |
Verdict
For most UK buyers, the Sonos Arc strikes the best balance of audio quality, smart features, and multiroom expandability — and its price has become much more competitive in 2026. Samsung TV owners should give serious consideration to the HW-Q990D for the Q-Symphony integration and the HDMI 2.1 gaming inputs. The Bose Smart Soundbar 900 is the pick for those who stream music as often as they watch films. The LG SP11RA suits larger rooms and audiophiles who want Hi-Res Audio certification. And the Amazon Fire TV Soundbar Plus is the obvious choice for anyone who wants a meaningful upgrade without spending more than £250.
