Jointly developed by HeHa and the National Central University of Taiwan, HeHa Qi smart watch determines the health condition of the Autonomic nervous System (ANS) through monitoring your ECG data and conducting heart rate variability (HRV) monitor assessments, actually is health product.
 
Feature:

• Clinical study by BWH of Harvard University
• Display: LCD watch screen
• Time: Automatic time correction via SYNC with phone
• Steps counting pedometer with route tracker 
• Accumulated walking distance
• Calories burned
• Sleep tracker
• Anti-allergic, water resistant, silicon watch wrist band
• LCD time digital watch display with silent alarms
• Bluetooth Version: V4.0
• Smartphone Compatible: iPhone 5 & iOS 7.0 or above, also support Android 4.3 or above, not support window mobile
• Endurance: 5 days battery life
• Charging: 1 - 2 Hours (Charge for 8 hours before the first use)
• Memory: Record data of 7 days 
• Size: 22.6 x 1.6 x 0.98cm
• HeHa wrist band smart watch are For Men and For Ladies
• HeHa apps: English
• 5 colors wristwatch: black,grey,blue,purple,yellow
• Packaging box, manual, warranty, USB charger, waist buckle,wrist band 
• International warranty: 1 year
• Certificate of safety quality test (CE,FCC,RoHS,Reach,WEEE)