Smart Band 9 Active combines elegance and high technology. Weighing just 16.5g, it's light and comfortable. It has a 1.47" TFT screen with a resolution of 172x320 pixels, 247 PPI and a refresh rate of 60Hz. It is waterproof (5ATM), with a 300mAh battery that offers up to 18 days of autonomy. It supports Bluetooth 5.3 and is compatible with Android 8.0/IOS 12.0 and above. Tracks heart rate, oxygen, sleep and has 50+ sports modes for accurate tracking.