How we know this
How we know this
What changed, newest first.
OutcomeRightIt turned out as reported.
Sep 18, 20269to5MacThe shipped Series 12 reads heart rate every five seconds, whether or not you are moving.+1 outlet
Sep 12, 2026Tom's GuideThe new sensor reads heart rate every five seconds, where the Series 11 reads every five minutes.+1 outlet
Sep 10, 2026Gadgets & WearablesBigger and more efficient green LEDs are what let the sensor read every five seconds.
Sep 10, 2026The Mac ObserverHeart rate is sampled every five seconds all day, 60 times more often than on Series 11.
Sep 9, 20269to5MacThe new sensor system reads heart rate every five seconds, sixty times more often than the previous models.
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Sep 8, 2026Tom's GuideContinuous tracking would run against 18 hours of Apple Watch battery, where Oura and Whoop last four to seven days
Aug 31, 2026GizmodoContinuous heart rate would match the round-the-clock tracking Garmin and Whoop already offer
Aug 31, 2026Android HeadlinesContinuous heart-rate collection through the day is among the features being tested
Aug 31, 2026MashableContinuous collection replaces the random intervals and workout windows used today
Aug 30, 2026EngadgetAll-day sampling is still in testing, and the bigger watch redesign is aimed at 2027
Aug 30, 2026MacRumorsArrives alongside a Health and Fitness app revamp borrowing from Whoop and Oura
Aug 30, 2026Digital TrendsWorkout-style monitoring kept running all day rather than switched on in bursts
Aug 30, 2026AppleInsiderToday the sensor samples at semi-random intervals or during intense activity
Latest Apple Watch Series 12 news
Latest Apple Watch Series 12 news
- Some Apple Watches run an hour fast on the Always-On screen after Europe's clock changeAndroid Headlines · Oct 26, 2026
- Orangetheory members can use an Apple Watch in class for a one-time $999to5Mac · Oct 22, 2026
- An Apple Watch can now pair with some Huawei phones in ChinaAndroid Headlines · Oct 13, 2026
- Apple Watch Series 12 is slightly easier to repair, but iFixit still gives it a 4 out of 10MacRumors · Oct 7, 2026