Interestingly, the patent also suggests that this sensor-rich band could be used in wearables beyond the Apple Watch.

those who received incorrectly sized bands had to return their entire packaging, including the Apple Watch itself. New with the Series 6 is an integrated blood oxygen sensor. It works similarly to ...

Apple Watch Band 38 40 41mm Gray Blue Tan 3 Pack. Luxury Design For Apple Watch Bands Leather Material Watch Strap. Luxury ...

The existing sensors are packed into a very limited ... A lot of questions have arisen in recent years over Apple Watch bands. It has been quite the feat for Apple to support the same two sizes ...