4.2 Bluetooth Low-Energy sports smart watch with silicone strap. Rechargeable Li-Pol 180 mAh battery. Requires a free app (wearfit available in both iOS and Android.
4.0 Bluetooth health wristband in silicone with which you can track your steps, calories burned, sleep, alarm mode, income calling notice, taking picture function and anti lost alert. Smart watch requires for download free app get fit 2.0.