NK03 Smart Bracelet Heart Rate Sleep Monitoring 1.72 Large Screen Bluetooth Call Music Sports Watch

Product SpecificationsColor: tawny, rose gold, silverPackaging specifications: 42mm extended APP silicone strap (with switch ear) + magnetic charging cableHardware SpecificationsMain chip: Realtek RTL8762C+BK3266 (Bluetooth call function chip)Memory size: SRAM: 128k\SROM: 1MG-sensor model: SC7A20Heart rate sensor model: Tianyihexin 3300Display specification: 1.72-inch square color screen, resolution 240*280Button mode: multi-touch screen + physical buttonBattery type: polymer batteryCharging head specifications: charging 1A or lessCharging method: Magnetic charging methodSpeaker type: BOX1508Motor Type: Flat 0825Other parametersStandby power consumption: Standby for 30 days, normal use for 3-7 days (depending on the user's usage and frequency)Bluetooth type: Bluetooth 4.0Battery capacity: 230mAhCharging voltage: 5VCharging current: 75MABracelet display language: Chinese, English, Russian, Spanish, Portuguese, French, JapaneseBracelet push language: English, German, French, Italian, Gre