Review on Track Your Fitness Routine with Our IP68 Waterproof Activity Tracker for Men and Women - Heart 💪 Rate, Blood Oxygen, Sleep, Steps, and Calorie Monitoring with 1.14'' HD Screen - Compatible with iPhones and Androids by Tim Wadman

It was a great price considering all the features. However, mine was completely blocked on the 31st day after purchase. Now it doesn't fit at all. Just outside the return window, of course. The battery life turned out to be shorter than stated, around 1.5 days with activated functions (including energy saving mode). The WoFit app is pretty good, but it drains your phone's battery badly. Use Hband instead, it uses a lot less power and I like the way the data is presented more. Note. Each application often loses connection with the device. Just force stop it in the app settings and it will reconnect normally the next time you launch the app. Assuming your device isn't locked like mine is now. Blood Pressure isn't really far off if you give it a link and use it privately. The heart rate on the main display doesn't always match what the submenu shows, sometimes you have to go in and tell it to take a heart rate reading for it to show up correctly. The number of steps is too high, but that's probably typical of this type of device. .I liked this thing for sleep tracking and apnea detection and many other features but now it's useless. I haven't checked the warranty but if I can replace it cheaply/free I will. Will update review if this happens and if the replacement is better.