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Emfit QS HRV Sleep Monitor Review

Emfti QS HRV Sleep Monitor

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Emfit QS HRV Sleep Monitor

Emfit QS (Quantified Sleep) HRV is Emfit’s first product that targets consumer sleep tracking. It is an advance contactless sleep monitoring solution that monitors your sleep patterns and provides sleep analysis. On top of that, the QS also features a highly-detailed sleep analysis that targets athletes and other sports professionals.

What is HRV?

HRV or Heart Rate Variability is the measure of the gaps between your heart beats. High variability is an indication of one’s good health. If your HRV is high, this is an indication that your parasympathetic response is functioning well. The parasympathetic response is the side of your autonomic nervous system that promotes relaxation, digestion, sleep, and recovery.

Although heart specialists have used HRV for decades, lately it has become very popular among athletes. Athletes and sports professionals use HRV as a way to track rest and recovery periods after exercises. Some wearable trackers like the Xiaomi Mi Band and the Fitbit Charge HR already have this feature. This advanced sensor technology helps them figure out which training and competition periods can provide them with optimal results. This is also an excellent way to avoid over training.

How does it work?

We love how this product’s sleek design doesn’t look bulky.  You can get it in either black or white. It comes with a 1.8-meter cord that is attached to the sensor strip so that it can protect your body from any embedded wifi signals coming from the device. The device is designed to work in a single bed or with a partner. Just place the sleep sensor under your mattress pad or mattress topper and you’re good to go. You can enjoy a good night’s sleep while this sleep sensor monitors you as you go through all your sleep cycles. It is similar to the SleepScore Max or the Beddit Sleep in a sense that it doesn’t require any part of your body to be in contact with the device for it to track your sleep or take note of your sleep stages. It also doesn’t require you to activate it before you fall asleep. The device will immediately commence total sleep monitoring once it detects that you are sleeping.

Unlike other sleep trackers, this device doesn’t require you to pair your phone for you to be able to use the device. The QS connects directly to your wifi network where you can access your sleep data through a web platform. This makes it unique since most sleep trackers require users to download a companion up to their smartphones.

Power Source

Another thing that we liked in this device is the fact that it is plugged into a power outlet hence you don’t have to worry about any battery level. Unlike wearable fitness trackers like the Fitbit Charge, Fitbit Alta or Fitbit Ionic you don’t have to charge it which means that the device can track your sleep anytime you go to bed.


The device monitors and captures a lot of data while you sleep. This includes heart rate variability (HRV), autonomous nervous system balance, 3-stage sleep classification (REM sleep, deep sleep, light sleep, awake), heart rate, breathing rates, sleep score, resting heart rate, tossing and turning, and movement activity.

All of this information is shown in the desktop web app that can be accessed in any web browser. You can also use your smartphone to access this web app. The dashboard is very comprehensive and provides you with readouts of heart rate, respiration, movement, and HRV RMSSD. The RSMMD level indicates your accumulated stress levels.

You can also drill down on each metric to get a more in-depth analysis. For example, it will show you your average breathing rate while you sleep. You can compare this data with the breaths per minute for your age and physical stature to see if you have a standard rate. Your breathing rate may also indicate if you have a sleep disorder like Sleep Apnea which is characterized by an abnormality in breathing while asleep.

You also get a sleep score based on a combination of all of these metrics.

Pros and Cons of Emfit QS HRV

What We Liked

  • Non-contact device
  • Advance HRV sensor
  • Detailed sleep data
  • Automatic sleep monitoring
  • Can be used by two people at the same time

What We Didn’t Like

  • Non-portable
  • Lacks action plans or recommendations

About Emfit

History of Emfit

Emfit has been developing and manufacturing sleep sensing solutions since 1990. The company is made up of a small but extremely talented team of 20 individuals coming from diverse backgrounds. Its first product is the Emfit seizure monitor, a device that uses Emfit technology to monitor Tonic-Clonic seizures.

BBB Ratings

Emfit doesn’t have any BBB ratings

Physical Shop

Emfit doesn’t have any physical store. All of its products are available in its online store.

Contact Emfit

[email protected]

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Accolades & Praise for Emfit

Our Verdict

The Emfit QS is an excellent alternative for those who want a contactless sleep monitor. We liked that it automatically starts monitoring once we get into bed. Some sleep monitors need to be prompted to start tracking and it might pose a problem especially during nights when you are exhausted.

It is also worth noting that unlike other non-contact sleep trackers, this device can be used by two people at the same time. This is a huge point for the Emfit QS since people who need sleep monitors but don’t want to shell out money for two devices will naturally gravitate to this device. 

It does lack some nice to have features like the alarm clock in the Fitbit Blaze. It also lacks detailed actionable recommendations like what the SleepScore Max has. The Emfit QS HRV is still a great sleep monitoring device and is still worth investing into.

Emfit Compared to Other Sleep Trackers

Sleep TrackerAccuracyBattery LifeData AccessibilityOur ReviewBuy Now
Oura RingBest AvailableExcellentYes via App - iOS and AndroidRead Full ReviewCheck Price
Garmin Vivosmart 4Best AvailableVery GoodYes via App - iOS and AndroidRead Full ReviewCheck Price
Withings Sleep Tracking MatGoodBattery Not NeededYes via App - iOS and AndroidRead Full ReviewCheck Price
Fitbit Charge 3GoodGoodYes via App - iOS and AndroidRead Full ReviewCheck Price
SleepScore MaxGoodBattery Not NeededYes via App - iOS and AndroidRead Full ReviewCheck Price
Emfit QS HRV Sleep MonitorGoodBattery Not NeededYes via App - iOS and AndroidRead Full ReviewCheck Price

How We Rate Sleep Trackers

Sleep trackers are judged by 8 standards: 

  1. Accuracy
  2. Ease of Use
  3. Functionality
  4. Reliability
  5. Data Accessibility
  6. Aesthetic Design (wearable only)
  7. Comfort (wearable only)
  8. Battery Life (wearable only)

Read about our rating process for sleep trackers.

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