Prototype of Apple Watch Series 10 Discovered Features New Health Sensor, Functionality Still Unconfirmed

Although the Apple Watch Series 10 launched without any new clinically approved health sensor, it was anticipated that this significant iteration of Apple’s wearable technology would debut with groundbreaking features. Unfortunately, various technological and developmental challenges ultimately hindered these innovations from making it to consumers. However, a recent leak has unveiled a prototype of the device, revealing that the Apple Watch Series 10 could have implemented a novel health sensor arrangement that was ultimately excluded from the final design.

Prototype Insights: A Glimpse at Innovative Health Sensor Features

Recent images have surfaced showcasing a prototype of the Apple Watch Series 10, highlighting a distinctive health sensor configuration. Interestingly, this prototype boasts an additional ring light encircling the health sensors on the device’s rear. While the standard upgrades from the previous Apple Watch Series 9 included a marginally larger display and a sleeker chassis, it was believed that further enhancements concerning health metrics could also emerge in this model. Regrettably, this potential addition did not materialize, but thanks to the source @StellaFudge, we gain valuable insight into what might have been included in the retail version.

The detailed images reveal critical specifications regarding the health sensor. Notably, a significant circular component is located on the back, presumably for tracking the user’s pulse. However, it appears that the dimensions of the sensors have been reduced and reorganized, complemented by an innovative light ring surrounding the area. Importantly, the prototype is said to be operating on an unreleased version of watchOS 11, which severely limits the ability to assess the sensor’s full capabilities.

Prototype Apple Watch Series 10 with… A very unique health sensor arrangement.

The health sensors got shrunk down a lot and there was an extra light ring around the perimeter. The watch is also running an unreleased build of watchOS11, somewhere between 11.1b5 and 11.1rc.pic.twitter.com/8n06JkQT39

— Stella – Fudge (@StellaFudge) March 31, 2025

Furthermore, the prototype lacks stock applications required to evaluate the sensor’s functionality since these applications can only be accessed via Apple’s internal network servers. While the whistleblower cannot confirm the precise capabilities of the hardware, there is a suggestion that it may serve as a testing platform for blood glucose levels. However, it is essential to recognize that recent reports suggest Apple could still be several years away from launching non-invasive blood glucose monitoring in its wearable devices, despite significant progress in development. If @StellaFudge’s theory is accurate, this could indeed represent the long-rumored sensor that has been discussed for years but never reached mass production.

For further details, you can check the original report by @StellaFudge.

Source&Images