Review on ⌚️ Tinwoo Smart Watch (40mm QI Wireless Charging Bluetooth) - DIY Clock Face, 5ATM Waterproof for Android & iOS - Blood Oxygen Heart Rate Monitor Smartwatch for Men, Women, and Kids - Sleep & Fitness Tracker by Fisseha Rodgers

I received the phone and charged it in a few hours. Just one button on the clock. Hold for 3 seconds to turn it on. Can't turn it off, just stays on the home screen. Searching the internet found how to reset it. Step 1: Connect to the app and reset by phone. Very useless, especially if it doesn't even start. After constantly rebooting all night, it finally died. The next morning I charged it and turned on the watch. Since then he has been working. It won't reconnect to your phone if you go too far without opening the app again.