Apple Watch Series 12 May Get Always-On Heart-Rate Tracking and a Redesigned Fitness App
A last-minute report says the Series 12's heart-rate sensor could run all day rather than just during workouts, paired with an all-new Fitness app — pushing Apple's smartwatch further into everyday health tracking ahead of the September 9 event.
DEVELOPINGA late report ahead of Apple's September 9 event suggests the Apple Watch Series 12 could lean harder into all-day health tracking, with two software-and-sensor changes headlining: always-on heart-rate monitoring and a redesigned Fitness app. Neither is confirmed by Apple, but both fit the direction the Watch has been heading.
ALWAYS-ON HEART RATE
Today, the Apple Watch samples your heart rate continuously during workouts but only intermittently the rest of the time — periodic background checks rather than a constant read. The report says Apple is testing the ability for the sensor to record all day long instead.
That sounds like a small change, but continuous data is the foundation for better resting heart rate, heart-rate variability, recovery and long-term trend insights. It's the kind of always-on baseline that health features increasingly depend on — and a natural pairing with the new S11 chip the Series 12 is expected to carry, which would give the watch the efficiency headroom to run the sensor more often without wrecking battery life.
A NEW FITNESS APP
Alongside the sensor change, Apple is said to be revamping its fitness and health software with an all-new app design that surfaces more wellness-related metrics. Where today's app is built largely around closing rings and logging workouts, the redesign reportedly leans toward a broader everyday-wellness view.
Combined with always-on heart rate, that points to Apple reframing the Watch less as a workout tracker and more as a continuous health companion — the same strategic push behind features like sleep tracking, hypertension notifications and blood-oxygen monitoring.
HOW IT FITS THE SERIES 12 PICTURE
This report slots in alongside the other big Series 12 rumours: a returning ceramic case in white and dark grey (codename 'iceman'), the move from the S10 to the S11 chip, and a separately reported enhanced high-blood-pressure notification feature that Apple has filed with the FDA. Together they paint a 'modest year' where most of the change is internal and health-focused rather than a visible redesign.
RATING
We rate the always-on heart-rate and new Fitness app rumours as LIKELY — they're well-sourced and consistent with Apple's trajectory — but everything stays unconfirmed until the September 9 keynote. For the full, continuously updated picture, see our Apple Watch Series 12 hub.
→ For the full picture, see our living Apple Watch Series 12 hub, updated whenever new details land.