• Real-time heart rate testing: Monitor your real-time heart rate， help you know about your heart rate when resting and doing sports. (Before testing heart rate， you should tighten strap， and wait 8s， then you can normally use it)
• Sleep monitoring: Monitoring sleep quality， tell you deep sleep time and shallow sleep time.
• Sports tracking: Record your sports data， let you know steps taken， calories burned and distance traveled.
• Call / Message Reminding: Your smart phone's assistant， when calls / messages come， K18 will tell you. (iOS system don't support this function)

Without HOME key:
As long as the wristband has electricity， it will always on， when you don't operate the screen， it goes into sleep mode; When the wristband out of power， it will turn off， but as long as you charge the wristband， it will automatically power on.

APP download: You can scan the QR code to download app
Android users - iOS users -

Note: The color of the words on the screen is random.