I bought this expecting the Bose tax to buy me the whole package. What I got, after the first weekend of news, late-night talk shows, and one rewatched episode of Andor, was the cleanest dialogue I've had out of a soundbar and a low end that politely declined to participate.
What the Smart Ultra gets right is the part most bars still botch. Voices have weight and pitch and a sense of where the speaker is in the room, not the compressed phone-call quality I'd been living with on the TV's own speakers. The ADAPTiQ calibration ran me through a five-minute headset routine that I almost skipped, and I'm glad I didn't — it tightened up everything by a noticeable margin in a long living room with a rug and one bare wall. The glass top and metal grille feel like the price tag, which matters more than it should when the thing is sitting under your TV for the next eight years.
The nine drivers and two up-firers do a real job on width. Atmos height effects are the part the marketing oversells. With the right mix (the rain in Blade Runner 2049, a few music tracks that have actual overhead information), you can hear that the bar is trying. With anything else, the height is suggestion more than placement. That's not a failure of this bar; it's a failure of every up-firing-only soundbar I've heard at this price.
The AI Dialogue Mode is the most overhyped thing in the box. I left it on for a week and turned it off, and I'd be lying if I said I could pick the difference in a blind test. Dialogue on this bar is good because the bar is good, not because of a switch in the app.
Now the real complaint: bass. On its own, the Smart Ultra delivers what I'd call apartment-friendly low end. Action scenes that should hit you in the sternum land somewhere in the upper chest. I borrowed a friend's Bose Bass Module for two days and the difference wasn't subtle — it was the difference between a soundbar and a system. Which is the problem. At $999 MSRP (closer to $699 on sale, which is when you should buy it), Bose is asking soundbar money and quietly assuming you'll find another $500 to $700 for the sub. Once you're at $1,200+ all-in, you're shopping against the Sonos Arc Ultra, which doesn't need the sub to feel finished.
The small joys are real. AirPlay 2 plus Chromecast plus Spotify Connect plus Bluetooth means everyone in the house can get music out of it without an argument, and SimpleSync lets me pair Bose headphones for late-night episodes without waking my partner. The remote is fine, the app is fine, the setup took ten minutes. None of that is exciting, which on a soundbar is high praise.
Verdict: Buy this if your TV diet is dialogue-heavy and you'll add the matching Bose sub. If you want one box that already sounds like a movie theater, get the Sonos Arc Ultra instead.