A leaker with a reasonable track record, except regarding the Apple Watch, claims that the Apple Watch Series 12 will feature a new health sensor, but only in its fluoroelastomer band
Apple Watch already tracks a huge number of different health metrics, but Apple has regularly been rumored to add even more sensorsinally going to do it, although with one significant catch
[Censo-Wat]ch Series 12 gonna have a sensor on band, injection molded(to the silicon band, they hasn’t yet figured out how to putting a sensor on band with other materials now.)
— Kosutami (@Kosutami_Ito) July 3, <a href="https://comicvibe.com/anime-expo-2026-kicks-off-today/” title=”Anime Expo 2026 Kicks off Today”>2026
The leaker says nothing about what the band’s sensor could measure, but says it will solely be in the silicone band. That is presumably the basic fluoroelastomer band that Apple provides if a customer does not also order a specific band
If correct, this could mean that the Apple Watch’s latest health sensor could only be available on the lowest-cost band. It’s more likely, though, that Apple will sell this version of the fluoroelastomer band separately
As for what it could measure, Apple has previously been reported to be working on multiple options for external sensors. They include a hydration sensor, or one based around muscle movement sensing
Apple is known to be working on non-invasive blood sugar monitoring as well. To date, there has been no suggestion that this will be on a band-mounted sensor, and instead integrated into the optical array underneath the watch body. It’s not clear when this feature will ship
Kosutami has had a fair track record with Apple leaks, and most recently claimed that the company has suspended work on its project to add cameras to AirPods. But they have been significantly wrong before, such as with a 2023 claim that Apple was going to change how bands connect to the Apple Watch
Separately, that persistent rumor has recently resurfaced. If it’s accurate this time, perhaps it’s because a new sensor band requires a different connector
