Apple Watch isn't tracking sleep stages. Followed all information I can already find. It is a series 3 and pre owned.
Hi,
My apple watch isn't tracking my sleep stages. I have worn it every night for a week and always slept more than 4 hours. I have followed all the advice I can find online: restarted it, deleted and remade my sleep schedule etc. etc...
Please can someone help as it's quite annoying.
Thanks!
Apple Watch Series 3, watchOS 8