HeHa Women Heart Rate Monitor Sleep Tracker Weight Loss Calorie Counter Fitness Watches with Sleep Monitor Alarm Clock

HeHa Qi is approved health monitor by *Harvard & TW Hospital also a striking smart wristband fitness tracker in CES 2016.
* A data collection tool in clinical research at Brigham and Women's Hospital, an affiliate of Harvard Medical School and used as a dedicated device in clinical research by National Taiwan University Hospital.

HRV is a new method for assessing the effects of stress on body. It's measured as the time gap between heart beats that varies as breathe in and out. In general, a high HRV indicates dominance of the parasympathetic response, the side of the autonomic nervous system that promotes relaxation, digestion, sleep, and recovery. The parasympathetic system is also known as the "feed and breed"or "rest and diges" system. A low HRV indicates dominance of the sympathetic response, the fight or flight side of the nervous system associated with stress, over training, and inflammation. That¡¯s why more and more people has been using HRV for decades to track the health and recovery of their patients, and it's why HRV is a predictive indicator of overall heart health, risk of heart attack, and other cardiac events.

Health Monitor 2-min health check, your electrocardiographic signals are measured for HRV analysis. Including, Restoration: the activity of parasympathetic nervous system which determines your ability to switch from a tensed state to a relaxed state. Biological Age: What your actual body age is. Stress: How stressed you are. Balance: Assessing the balance of your autonomous nervous system.

Features:
Bluetooth Version: V4.0
Smartphone Compatible: Most smart phone(iPhone 5 / iOS 7.0 and above / Android 4.0 and Above)
Endurance: 30 days(Based on a daily usage of 16 hours in walking mode, 8 hours in sleep mode, 3 Qi index measure and 1 breathing training)
Charging: 1 - 2 Hours (Charge for 8 hours before the first use)
Memory: Record data of 7 days