blood oxygen tracking

Reviews highlight that blood oxygen sensing is back, restoring a health feature reviewers considered important.

Blood oxygen monitoring is repeatedly listed among the watch’s core all-day health sensors.

The watch supports blood oxygen tracking and includes it in its broader wellness measurements and one-tap health checks.

Pulse-ox support is included and reviewers highlighted SpO2 alongside the watch’s other health metrics.

Reviewers consistently note that blood oxygen tracking is not available on the SE 3, making this a clear omission versus pricier Apple Watch models.