Why Heart Rate Variability?

Emfit QS gives you a detailed description of your sleep quality, stress level, and progression of recovery. With this data you can make well educated choices for daily workouts, meetings and other important events.


Good health and optimal fitness

High heart rate variability is linked to good health and optimal fitness level, while decreased HRV is linked to stress, fatigue, poor recovery, and even burnout. Getting a full night HRV analysis will give you a detailed and reliable picture of how well and at what rate your body recovers during the night.

If you see a low HRV score and a decreasing, negative trend through the night, your best bet would be a light workout or none at all – to make sure you won’t face overtraining and all the problems it brings.

A high HRV score and an increasing level of recovery during sleep mean go for it! Max out, run as fast and far as you can, and push your body to the limits – it’s ready for it.

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All Three Sleep Classes

Emfit QS helps maximize fitness potential by tracking not only HRV, but also recuperating REM and deep sleep. No more guessing when it's the right time to push yourself to the limit.

The Benefits

Optimize your training

Heart rate variability lets you know when you’re body is ready to be pushed to the limit and even further, thus making it possible to reach even higher goals in athletics. No more guessing when to take it easy and when to max out. Furthermore, since Emfit QS measures HRV throughout the entire night, the results are more reliable and tell more about the efficiency of recovery. Let Emfit QS help you maximize your fitness potential.



The Evening RMSSD value shows accumulated strain over the day, and Morning RMSSD indicates recovery status and readiness for a new day. Linear Fit line, Recovery Ratio and Total Recovery indicate efficiency and total amount of recovery.



How Emfit QS Works?

There's no need to wear a straining chest strap or wrist band, and no need to turn equipment on and off. Just lay down on your bed, sleep tight and check your bed-time data in the morning from your smartphone, tablet or computer.