Apple's biggest, most metric-rich watch — and the one that finally makes the case for "smartwatch as longevity device."
For years the longevity-and-biohacker crowd treated Apple Watch as too consumer-y to take seriously. Ultra 2 closed enough of the gap to deserve a second look.
The sensor stack is now competitive: ECG, blood oxygen, skin temperature, fall detection, and a real running-power metric that endurance athletes care about. The 36-hour battery doubles previous Apple watches and approaches the dedicated tracker territory. Sleep tracking is finally usable — it won't beat Oura on staging, but it's no longer embarrassing.
What tilts the buying decision: deep iOS integration, a screen and notifications a ring or band can't match, and one device for fitness + comms + payments + health tracking. What pushes against it: still wrist-form, still has to charge daily-ish under heavy use, and Oura/Ultrahuman win on pure passive longevity tracking.
Buyers in the Apple ecosystem who want one device for fitness, notifications, payments, and credible health tracking.
You're Android, you want pure passive tracking (go ring), or you already wear a dedicated fitness watch (Garmin/Whoop).