Review on 📱 2021 Willful Smart Watch | iPhone & Android Compatible | Blood Oxygen, Heart Rate Monitor, Fitness Tracker | IP68 Waterproof | Personalized Watch Faces by Dustin Miller

So. First of all, I have to say that this tracker is pretty good overall. It syncs with my phone and does what it's supposed to do. The battery life is 7 days. I've had it for 3 months, the battery needed charging so I plugged it into the included charger overnight. This morning the battery showed 92%, even after 30 seconds the battery didn't show 9%. Now it doesn't load at all. You get what you pay for I guess.