feature:
1. 1.14 inch HD display.
2, IP68 waterproof rating (wearable watch for a short time swimming).
3, three special belts can be replaced (silicone, leather, Milan steel).
4. Accurately calculate your heart rate (you can pay attention to your physical and mental health throughout the day).
5, female physiological cycle monitoring (at any time concerned about women's health).
6, compatible with 99% of mobile phones on the market.
7, lightweight, beautiful, suitable for women to wear.
8. Support languages from multiple countries (covering languages in more than 150 countries)
9, 140 mAh lithium battery, can stand for a long time, do not worry about frequent charging.
10. Stable APP (H-band) for aerial upgrades.
parameter:
Product model: AK12
Waterproof rating: IP68
Motherboard specifications
Product shape and material: bracelet metal + TPU strap
Main chip model: NRF52832
Body storage capacity (ROM + RAM): 64KB + 512KB and add another flash: 64M bytes
Display type: IPS
Screen resolution: 135 * 240
Screen size: 1.14 inch color screen
Touch screen: single touch
Acceleration sensor: Yiguang PD70-01C-TR7
Bluetooth version: BT4.0
Battery type: polymer lithium battery
Battery capacity: 140mAh
Heart Rhythm: Echo PD70-01C-TR7 Heart Rhythm
Compatible systems: IOS 9.0 / Android 4.4+

Support features: Facebook / twitter / whatsapp / WeChat / QQ / SMS message push, pedometer, sedentary reminder, sleep monitoring and more.