I Watch T55

iwatch Series T55 44mm Dual strap • Bluetooth 4.0 + 5.0 LE ( Dual Connectivity ) • Optical Heart Ra- te Sensor With Dynamic Heart Rate Real Time Monitor • Different Sports Activities To Calculate Heart Rate / Calorie Count • BT Calling / Message / WhatsApp / WeChat Notification • Dual Strap Included In The Box One Plain / One Nike Edition (Free) • Metallic Aluminum Body • Battery Backup Standby Time Upto 1 - 2 Days • Charging Time Upto 2 to 3 Hours • Wireless Magnetic Charger Included In the Box • variety Of Watch Face To Select From • included with extra strap •Crown not working