Apple Watch 6's blood oxygen sensor is unreliable and misleading - The Washington Post
How to set up and use the Blood Oxygen app on Apple Watch — Apple Support - YouTube
O2 network in the UK now offering the cellular Apple Watch
How to use ECG and Blood Oxygen app on Apple Watch Series 6 - YouTube
Which UK Networks Sell Apple Watch? A Guide For 2020…
O2 - With Family Setup, everyone in the family, like your kids and older adults, can have an Apple Watch. Even those who don't have their own iPhone yet. It's all the