Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Bose - Smart Ultra Soundbar | Yamaha - YAS-209 |
|---|---|---|
| Dolby Atmos | true | false |
| eARC | true | false |
| Subwoofer included | false | true |
| Total power | 0 W | 200 W |
Between the Smart Ultra Soundbar and YAS-209, the Smart Ultra Soundbar comes out ahead in dolby atmos / earc, while the YAS-209 wins on subwoofer included / total power. Overall, the Smart Ultra Soundbar scores 68.3 and the YAS-209 scores 40.2 on our Mars Score.
Which should you buy?
The Smart Ultra Soundbar is the clear pick on raw spec strength, leading by 28.1 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Smart Ultra Soundbar if you care most about dolby atmos / earc. The biggest gaps in its favor are dolby atmos, earc. The single most decisive one: Has Dolby Atmos.
Pick the YAS-209 if you care most about subwoofer included / total power. Its strongest claims are subwoofer included, total power. The single most decisive one: Has Subwoofer included.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the Smart Ultra Soundbar is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Bose - Smart Ultra Soundbar or Yamaha - YAS-209?
Bose - Smart Ultra Soundbar leads the current Mars Score by 28.1 points.The more useful decision is the trade-off behind that result: compare total power, dolby atmos, subwoofer included against the way you will actually use the product.
Choose Bose - Smart Ultra Soundbar if…
Bose - Smart Ultra Soundbar has the measurable edge on has dolby atmos, has earc.
Choose Yamaha - YAS-209 if…
Yamaha - YAS-209 has the measurable edge on subwoofer included, total w.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Bose - Smart Ultra Soundbar wins
- ▲Has Dolby Atmos.
- ▲Has eARC.
Why Yamaha - YAS-209 wins
- ▲Has Subwoofer included.
- ▲Total power: 200 W vs 0 W.
Spec comparison
Audio
| Spec | Bose - Smart Ultra Soundbar | Yamaha - YAS-209 |
|---|---|---|
| Channels | 5.1.2 | 2.1 |
| Total power | 0 W | 200 Wlead |
| Dolby Atmosⓘ | truelead | false |
| DTS:X | false | false |
Connectivity
| Spec | Bose - Smart Ultra Soundbar | Yamaha - YAS-209 |
|---|---|---|
| HDMI inputs | 1 | 1 |
| eARCⓘ | truelead | false |
| Subwoofer included | false | truelead |