Smart sat MyKronoz ZEFIT4 HR BLUE SILVER (7800409)

Bluetooth : BLE 4.0
\r\nDimensions : 45.5*18.6*9.3 mm
\r\nWeight : 17 gr
\r\nBattery type : Li-ion 80 mAh
\r\nStandby time : up to 5 days
\r\nCharging time : 1.5 hours
\r\nMemory : 7 days of activity
\r\nDisplay : Color touchscreen TFT 1.06 inches / 160*64 pixels
\r\nSensors : 3-axis accelerometer, optical HR sensor
\r\nOperating temperature : -20°C to +40°C
\r\nWater resistance : *IP67, see user guide for full specifications
\r\nAccessories included : magnetic charger, USB cable
\r\nFree Android and IOS app : iOS 8+ / Android 5.0+