The company claims the same 20 days of battery life, but water resistance has been upgraded to 50 meters.
0.78-inch OLED (128 x 80 pixels) display with scratch-resistant glass, anti-fingerprint coating shows time, step, heart rate, activities, weather, notifications
Photoplethysmography (PPG) / Heart rate sensor
Monitors your fitness and tracks your sleep, Sedentary reminder
8.5g (20g with band) ultra light body
5ATM (50 meters) water resistant
Bluetooth 4.2 LE, NFC (Optional)
110mAh Li Ion polymer battery with up to 20 days of standby
Xiaomi Mi Band 3 comes in Black color with bands in graphite black, hot orange and deep blue colors and is priced at 169 yuan. It will be available in China from June 5th. There is also NFC-enabled version with support for contact-less payments for 199 yuan which will be available in September.