Our verdict
The Bose Smart Ultra Soundbar is aimed at people who want fuller TV sound without running speakers around the room. Its up-firing speakers point towards the ceiling so sound bounces back down from above, which is how a single bar can make films feel taller and wider than a plain stereo speaker. Bose focuses on clear dialogue too. It has Chromecast built in, so you can send music from a phone or tablet straight to it. The trade-offs are practical. The surround effect depends on your room shape and where the TV sits, and a high channel count on the box does not guarantee clear speech. Our check on 1 August 2026 found it at £599 for the standard retail package.
Buy it if
- You want a wider, more cinematic sound without rear speakers
- You want to stream music from a phone with Chromecast
- Your room has a reasonably standard ceiling and the bar can sit below the TV
Skip it if
- Your room is very open, has a high or sloping ceiling, or the bar cannot sit in front of the TV, which weakens the ceiling bounce
- Clear dialogue at low volume is your main need and a cheaper bar does that well
- You want deep bass and would need to add a subwoofer anyway
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How it would fit your home
Films in a normal living room
The up-firing speakers work best in a room with a flat ceiling of ordinary height, where sound has something to bounce from.
Music and TV in one box
Chromecast built in means you can cast music to the bar without a separate speaker.
Small budgets or awkward rooms
In a room where the ceiling effect is weak, a cheaper bar may sound as good for less.
The details, in plain English
Spacious sound
Up-firing speakers are small drivers angled at the ceiling. Sound travels up, bounces off and reaches you from above, which makes effects such as rain or aircraft seem to come from higher than the TV. This works only if the room helps. A flat ceiling of normal height suits it. A very high, sloped or open-plan space gives the sound less to bounce off, and the effect shrinks.
Dialogue
Bose highlights clear speech, which matters most for TV drama and news where voices are easy to lose. Do not rely on channel counts printed on the box: they describe how many separate sound paths there are, not how clear a voice is. If speech is your main problem, listen to it in a shop or buy from a retailer with a generous returns policy.
Connections
Chromecast built in lets you send audio from a compatible app on a phone or tablet directly to the bar over Wi-Fi, without Bluetooth pairing. It also means the bar can be part of a multi-room setup with other Chromecast speakers. It is useful only if you already use those apps, so check that your usual music services support casting.
Cost and extras
The £599 checked price covers the standard package without a bundle or refurbished unit. A separate subwoofer or rear speakers can add cost and clutter, which undercuts the appeal of one neat bar. If you are likely to want stronger bass, add the price of a subwoofer before deciding, and compare with similarly priced alternatives.
Strengths and drawbacks
What it does well
- Up-firing speakers bounce sound off the ceiling for a wider, more spacious sound
- One bar: no rear speakers or extra cables across the room
- Chromecast built in, so you can stream music to it from a phone or tablet
- Bose puts particular weight on clear dialogue
What to watch out for
- Room shape and TV placement change how convincing the surround effect is
- Channel counts on the box do not guarantee clear speech
- A separate subwoofer or rear speaker kit costs extra and adds clutter
- At £599 it needs a clear reason to choose it over cheaper bars
Compare the Smart Ultra with other single soundbars that bounce sound off the ceiling, and with cheaper bars sold with a separate subwoofer. Where your TV sits and what your ceiling is like decide more than the badge on the box.
Alternatives we have reviewed
| Product | Our verdict | Price | Buy |
|---|---|---|---|
 Bose Smart Ultra Soundbar (this one) | A good choice if you want wider, more cinematic TV sound from one bar with no rear speakers, provided your room and TV placement suit it | £899.95RRP, RRP recorded 12 Oct 2026 | Check price |
 LG USC9S | Worth its £799 if you want big, room-filling film sound with a compatible LG TV, but not if clear, natural dialogue is your priority. | £999RRP, RRP recorded 12 Oct 2026 | Check price |
 LG US80TR | A good fit if you want full surround sound from one box and can place rear speakers behind your seat, but not the automatic choice for every soundbar buyer | £1,099RRP, RRP recorded 12 Oct 2026 | Check price |
 Sony Bravia Theatre Bar 7 HT-A7100 | A good pick for clear dialogue and room-filling Dolby Atmos from one bar, provided you accept thin bass unless you add Sony's separate subwoofer. | £699RRP, RRP recorded 12 Oct 2026 | Check price |
Not sure it is the right one for you?
We email three options and one clear recommendation, around your budget and home, within three working days.
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Where our findings come from
We did not test this soundbar ourselves. This is a research-based review that draws on the manufacturer's information and the independent sources listed below, and we have kept measurements attributed to whoever took them.