@@iogtechnology3233 I don't know, my SPO2 seems pretty good, up to 98%-99% most of the time, which it should be. I only get 3 days on my gt3 pro, but that's at about 48% I charge it at, and everything on bar AOD, And walk everyday using gps for around 55 mins a day. Better not let your battery get below 40%, 30% at bear min as its not good for battery lifespan. Also read that HR accuracy is up there with the polar chest strap, within 3 or so BPM. or so, which is why I got mine. The most accurate android fitness watch and almost matches apple, which has the best accuracy of any watch. As far as sleep tracking, like all watches, it's off, but not to bad compared to my Oura ring 3, which has been tested to show good sleep tracking. Huawei also have a gym, runners, etc, so test their results in the Lab on these people and refining their tracking so one of the best out there. Gps was off, but since updates, that's fixed and now accurate
