LG
LG S90TY
$1099
87
/ 100
From $1,099
VS
Sonos Arc Ultra wins by 5
Sonos
Sonos Arc Ultra
9.1.4 Atmos · Sound Motion woofers · eARC
92
/ 100
From $999
Specdex verdict
Sonos Arc Ultra takes it — here’s why.
In our weighted Specdex score, LG S90TY lands at 87 and Sonos Arc Ultra at 92. That puts Sonos Arc Ultra ahead by 5 points — a decisive margin driven mostly by its strengths in the categories below.
Pick LG S90TY if…
- ✓Dolby Atmos on most
- ✓One-box simplicity
- ✓eARC passthrough
Pick Sonos Arc Ultra if…
- ✓Massive bass without a sub
- ✓9.1.4 channel processing
- ✓Easy TrueCinema tuning
LG S90TY 87
vs 92 Sonos Arc Ultra
Score breakdown
LG S90TY
87 sound 87
features 85
design 84
ease 86
Sonos Arc Ultra
92 sound 94
features 90
design 92
ease 90
Specs side-by-side
| Spec | LG S90TY | Sonos Arc Ultra |
|---|---|---|
| Channels | — | 9.1.4 |
| Drivers | — | 14 + Sound Motion woofers |
| Connectivity | — | eARC HDMI, Wi-Fi 6, BT 5.0 |
| Atmos | — | Dolby Atmos |
LG S90TY
Pros
- +Dolby Atmos on most
- +One-box simplicity
- +eARC passthrough
Cons
- −Rear surrounds sold separately on some
- −App quality varies
- −Cabinet depth needs space
Sonos Arc Ultra
Pros
- +Massive bass without a sub
- +9.1.4 channel processing
- +Easy TrueCinema tuning
Cons
- −No DTS:X
- −App glitches
- −Expensive
FAQ: LG S90TY vs Sonos Arc Ultra
Which is better, LG S90TY or Sonos Arc Ultra? +
Sonos Arc Ultra scores 92 on our weighted rubric — ahead by 5. Your best pick depends on the sub-scores above.
Is LG S90TY worth the price? +
At $1,099, LG S90TY delivers a Specdex score of 87 — strongest in sound.
Is Sonos Arc Ultra worth the price? +
At $999, Sonos Arc Ultra delivers a Specdex score of 92 — strongest in sound.
Does LG S90TY or Sonos Arc Ultra last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.