Sonos
Sonos Arc Ultra
$999
Released 2024-11
Best Soundbars · head-to-head
Sonos Arc Ultra vs Bose Smart Ultra Soundbar
A sourced, side-by-side comparison. Bose Smart Ultra Soundbar is cheaper at $899. Every spec and price links to its source.
Bose
Bose Smart Ultra Soundbar
$899Cheaper
Released 2023
Which is better: the Sonos Arc Ultra or Bose Smart Ultra Soundbar?
On the specs we track, they're closely matched. The Bose Smart Ultra Soundbar is the cheaper at $899.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec |  Sonos Arc Ultra |  Bose Smart Ultra Soundbar |
|---|---|---|
| US price | $999 | $899 |
| Brand | Sonos | Bose |
| Released | 2024-11 | 2023 |
| Channels | 9.1.4 | 3.1.1 |
| Total watts | — | — |
| Dolby atmos | Yes | Yes |
| DTS:X | No | No |
| Wireless sub | No | No |
| Rear speakers | No | No |
| HDMI earc | Yes | Yes |
| Voice assistant | Sonos Voice Control, Amazon Alexa | Amazon Alexa, Google Assistant |
| Release | 2024-11 | 2023 |
Sources — Sonos Arc Ultra: digitaltrends.com (verified 2026-06-15). Bose Smart Ultra Soundbar: bose.com (cited since 2026-09-27; read 2026-06-15 at another bose.com page).
What's the difference between the Sonos Arc Ultra and Bose Smart Ultra Soundbar?
Where the two actually differ on the specs we track (2 of 8). Matching specs are omitted.
- Channels: Sonos Arc Ultra 9.1.4 vs Bose Smart Ultra Soundbar 3.1.1
- Voice assistant: Sonos Arc Ultra Sonos Voice Control, Amazon Alexa vs Bose Smart Ultra Soundbar Amazon Alexa, Google Assistant
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Sonos Arc Ultra
Verified two whitelisted hands-on reviews (Engadget, SoundGuys); all six quotes were re-confirmed verbatim on their pages and both cover the exact Sonos Arc Ultra model. Neither source published lab-measured values with units, so no measured-value cross-check was possible. Both praise the sound and bass performance while flagging the steep $999 price and the cost of expanding to a full surround setup. A previously listed 'sleek low-profile design' praise point was dropped as unsupported by any verified quote. (2 sourced reviews, 2 lab-tested.)
Praised: Genuine sound and bass upgrade over the original Arc, with clean spatial detail and dialogue that stays clear.
Flagged: Expensive at $999, and expanding the system (sub/rears) gets pricey fast; A single bar still does not fully replicate a true rear-channel surround setup.
Bose Smart Ultra Soundbar
Two whitelisted hands-on testers (Tom's Guide, What Hi-Fi?) reviewed this exact model; neither published lab bench measurements. Both praise the wide, immersive Dolby Atmos soundstage and solid build, but flag a congested/harsh midrange that undermines music and dialogue, and note the AI Dialogue mode can over-compensate. (2 sourced reviews, 2 lab-tested.)
Praised: Wide, immersive soundstage with good sense of height and width from Dolby Atmos; Solid, well-built design with useful, responsive Bose Music app controls.
Flagged: Weak/overstretched bass that muddles or distorts on demanding action content; Congested, harsh midrange and highs; underwhelming for music; AI Dialogue mode can over-compensate and sound hard/forced, upsetting tonal balance.