tw64 smart band activity tracker smart wristband six colors simple fitness bracelet watch tracker bluetooth smartband

description:.with the high-end and well-designed appearance, the portable multifunctional smart wristband is perfect in: tracking steps, distance measurement, calorie consumption management, monitoring your sleep cycle, time displaying. this smart wristband is your perfect companion, stay with you everywhere and keep a health record of your body..specification:.bluetooth version: 4.0 ble (low power consumption).screen: oled 64*32.sensor: g sensor.product size: about 242*20 mm.display: oled64*32.