• Watch Bluetooth Call Free Your Hands: When the mobile phone calls, it will be pushed to the watch in time, answering in one step, freeing hands anytime, anywhere. The answering is more efficient, and various life scenarios are easily dealt with
• Smart Watch is equipped with a 400mAh large capacity, long-lasting, high-performance lithium battery. Once fully charged, it can stand by for 30 days, and it can accompany you for 3- 5 days in daily use
• With a variety of sensors and professional exercise algorithms, it presents data analysis such as steps, distance, and calories after each exercise, and quantifies your exercise data and physical status. Efficiently improve physical fitness and exercise levels in a more scientific way
• Life waterproof performance: IP67 life waterproof performance eves easy to deal with daily life waterproof 
• More features: Diversified and convenient functions, experience smart life on the wrist, and many intimate small functions to reduce the burden of life and add energy

Specifications:

• Product Model: AK45
• Waterproof: IP67 waterproof 
• Motherboard: Comments
• Product shape and material: Smart bracelet/main metal, TPU watchband
• Main chip model: 8762DT+BK3266
• ROM+RAM: 16MB FLASH + 160KB RAM, external 128MB FLASH
• Maximum external storage capacity: 128MB
• Display: Comments
• Display Type: IPS
• Screen resolution: 360*360
• Screen size: 1.32 inches Colorful LCD
• Touch screen: full touch
• Antenna: Comments
• Bluetooth antenna: YES
• Sensor and model number: Comments (model no.)
• Acceleration sensor: SC7A20
• Bluetooth: Comments
• Bluetooth version: BT5.1
• Battery type: polymer
• Battery Capacity: 400mAh
• Health: Comments(model NO.)
• Heart Rate: TENECORE 3600+ Dynamic Heart Rate
• Blood pressure: YES, by software 
• Blood Oxygen: N/A
• Multi-exercise mode: 100+ exercise modes
• Features+Applications: Comments
• Compatible software: support IOS 9.0+, and Android 4.4+