Soundbars / Sonos Arc Ultra vs TCL S55H
Sonos Arc Ultra vs TCL S55H
Sonos Arc Ultra
The best one-box Atmos bar — real bass, no sub needed, but no HDMI input.
Wins overall by 2.0 points
Quick Verdict
The Sonos Arc Ultra is the stronger all-round pick, ahead by 2.0 points. The best one-box Atmos bar — real bass, no sub needed, but no HDMI input.
The Sonos Arc Ultra and TCL S55H are both current-generation soundbar models, and the TCL S55H is $960 cheaper than the Sonos Arc Ultra ($139 vs $1,099). On Surround & Height, the Sonos Arc Ultra leads (9.0 vs 5.5/10) — dolby Atmos height effect and how convincingly it places surround audio. On Connectivity, the Sonos Arc Ultra leads (7.5 vs 4.5/10) — HDMI inputs and passthrough, eARC, Wi-Fi and streaming protocol support. On Sound Quality, the Sonos Arc Ultra leads (9.2 vs 6.5/10) — overall tonal balance, clarity and detail. Overall, the Sonos Arc Ultra scores 8.4/10 across our 8 scoring categories versus 6.4/10 for the TCL S55H. Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | Sonos Arc Ultra | TCL S55H |
|---|---|---|
| Price | $1099.00 | $139.00 |
| Release Year | 2024 | 2024 |
| Channels | 9.1.4 (14 drivers: 9 tweeters, 6 mid-woofers, plus the Sound Motion woofer) | 2.1 |
| Total Power (W) | Sonos does not publish power ratings | 220 |
| Subwoofer | Built in (Sound Motion woofer); Sonos Sub 4 or Sub Mini optional | Included (wireless), 120W |
| Rear Speakers | Optional add-on — Sonos Era 300 or Era 100 pair as wireless surrounds | None |
| Dolby Atmos | Yes | Yes |
| DTS:X | No | TCL's own specification lists DTS Virtual:X; some retail listings claim full DTS:X, which is unconfirmed |
| HDMI Ports (ports) | 1 | 1 |
| HDMI Passthrough | None — there is no HDMI input at all, only eARC out | None — eARC output only |
| eARC | Yes | Yes |
| Wi-Fi & Streaming | Wi-Fi 6 with AirPlay 2 and Spotify Connect; Chromecast is not supported | App control via TCL Home, but no Wi-Fi streaming protocols are listed |
| Bluetooth | 5.3 | Not published by the manufacturer |
| Voice Assistant | Sonos Voice Control and Amazon Alexa built in | None |
| Warranty | 12 months | 12 months |
| Colors | Black, White | Black |
Category Scores
Sound Quality
The Sonos Arc Ultra leads clearly here, 9.2 against 6.5 — a 2.7-point margin on overall tonal balance, clarity and detail. If that is what you are buying for, the TCL S55H does not close the gap elsewhere.
Bass
The Sonos Arc Ultra leads clearly here, 8.5 against 7.0 — a 1.5-point margin on low-end weight and extension, with or without a separate subwoofer. If that is what you are buying for, the TCL S55H does not close the gap elsewhere.
Dialogue Clarity
The Sonos Arc Ultra leads clearly here, 8.5 against 6.5 — a 2.0-point margin on how well speech cuts through a busy soundtrack. If that is what you are buying for, the TCL S55H does not close the gap elsewhere.
Surround & Height
The Sonos Arc Ultra leads clearly here, 9.0 against 5.5 — a 3.5-point margin on dolby Atmos height effect and how convincingly it places surround audio. If that is what you are buying for, the TCL S55H does not close the gap elsewhere.
Connectivity
The Sonos Arc Ultra leads clearly here, 7.5 against 4.5 — a 3.0-point margin on HDMI inputs and passthrough, eARC, Wi-Fi and streaming protocol support. If that is what you are buying for, the TCL S55H does not close the gap elsewhere.
Features
The Sonos Arc Ultra leads clearly here, 8.5 against 6.0 — a 2.5-point margin on room calibration, TV-brand integration, app control and expandability. If that is what you are buying for, the TCL S55H does not close the gap elsewhere.
Design & Build
The Sonos Arc Ultra leads clearly here, 9.0 against 6.5 — a 2.5-point margin on finish, size relative to a TV, and how well it fits a living room. If that is what you are buying for, the TCL S55H does not close the gap elsewhere.
Value
The TCL S55H leads clearly here, 8.5 against 7.0 — a 1.5-point margin on performance and features relative to price. If that is what you are buying for, the Sonos Arc Ultra does not close the gap elsewhere.
Best For
Choose the Sonos Arc Ultra if…
- • Surround & Height matters most to you — the Sonos Arc Ultra scores 9.0/10 here (dolby Atmos height effect and how convincingly it places surround audio).
- • Connectivity matters most to you — the Sonos Arc Ultra scores 7.5/10 here (HDMI inputs and passthrough, eARC, Wi-Fi and streaming protocol support).
- • Sound Quality matters most to you — the Sonos Arc Ultra scores 9.2/10 here (overall tonal balance, clarity and detail).
- • Features matters most to you — the Sonos Arc Ultra scores 8.5/10 here (room calibration, TV-brand integration, app control and expandability).
- • Design & Build matters most to you — the Sonos Arc Ultra scores 9.0/10 here (finish, size relative to a TV, and how well it fits a living room).
Choose the TCL S55H if…
- • You want to spend less — it's $960 cheaper.
- • Your main use case is compact.
Pros & Cons
Sonos Arc Ultra
Pros
- +Widely rated the best one-box Atmos bar you can buy
- +The Sound Motion driver produces genuine bass without a separate subwoofer
- +Trueplay room tuning adapts it to your room
- +Superb build and finish
Cons
- −No HDMI input at all, which is a real problem if your TV has only one spare HDMI port
- −No DTS:X or DTS-HD decoding
- −Deliberately brand-agnostic, so no TV-brand features like Q-Symphony
- −Some controls sit on the rear, awkward when wall-mounted
- −List price rose from $999 to $1,099
TCL S55H
Pros
- +Automatic room calibration is genuinely rare under $200
- +220W with a wireless subwoofer included
- +eARC rather than plain ARC
- +Works as one system with TCL and Roku TVs
Cons
- −TCL's own spec sheet says DTS Virtual:X while retail listings claim DTS:X — treat full DTS:X as unconfirmed
- −No HDMI input
- −TCL does not publish the Bluetooth version
- −Atmos is virtualised, with no up-firing drivers
Shop by Need
FAQs
Is the Sonos Arc Ultra or TCL S55H better overall?+
Based on our 8-category scoring, the Sonos Arc Ultra comes out ahead overall. See the full breakdown in the scores section above — the right pick still depends on which categories matter most for your use case.
Which is better for Surround & Height, the Sonos Arc Ultra or the TCL S55H?+
The Sonos Arc Ultra scores higher on Surround & Height (9.0/10 vs 5.5/10) — dolby Atmos height effect and how convincingly it places surround audio.
Which is better for Connectivity, the Sonos Arc Ultra or the TCL S55H?+
The Sonos Arc Ultra scores higher on Connectivity (7.5/10 vs 4.5/10) — HDMI inputs and passthrough, eARC, Wi-Fi and streaming protocol support.
Which is better for Sound Quality, the Sonos Arc Ultra or the TCL S55H?+
The Sonos Arc Ultra scores higher on Sound Quality (9.2/10 vs 6.5/10) — overall tonal balance, clarity and detail.
Which is better for Features, the Sonos Arc Ultra or the TCL S55H?+
The Sonos Arc Ultra scores higher on Features (8.5/10 vs 6.0/10) — room calibration, TV-brand integration, app control and expandability.
Is the Sonos Arc Ultra worth the price difference over the TCL S55H?+
The TCL S55H is the cheaper option at $139 versus $1,099. Whether the pricier model is "worth it" depends on how much you value its lead in Surround & Height.
Which is better suited to my use case?+
The Sonos Arc Ultra is the better fit if you mainly care about home-theater. The TCL S55H is the better fit for compact.
What's the warranty on the Sonos Arc Ultra vs the TCL S55H?+
The Sonos Arc Ultra ships with a 12-month warranty; the TCL S55H ships with a 12-month warranty. Always confirm current terms on the manufacturer's site before buying.
Should I wait for the next model instead of buying either of these?+
If either model is more than two years old, a successor may be close — check the "Latest Model" link on each product page. Otherwise, both are current, well-supported options and there's no strong reason to wait.
Cheaper Option
Hisense HS2100 — $129.99
Premium Option
LG S95AR — $1699.00
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.