New BioForce HRV Finger Sensor

Last update on Aug. 5, 2016.

New BioForce HRV Finger Sensor

We’re excited to introduce an entirely new way for you to take your HRV reading - The BioForce HRV finger sensor. Here’s what is so great about it:

  •  It’s easy to use: If you don’t want to roll around in bed to put on your chest strap, the finger sensor presents an excellent alternative
  •  It connects quickly: The finger sensor and receiver and plugged directly into the headphone jack of your mobile device, so connectivity is a breeze.
  •  It has a signal strength indicator: No need to guess at whether you have good contact between the sensor and your skin—the bars on the measurement tab show your signal strength for the best reading possible.
  • It’s ultra-portable: the finger sensor wraps up neatly into its compact carrying case (included), making it easy to transport and take measurements wherever you go.

The finger sensor is the most convenient way to measure your daily HRV. The BioForce finger sensor can measure your heart rate and HRV accurately through the finger tip by detecting changes in the light that pass through it as blood is pumped throughout the body.

Researchers tested this sensor for accuracy and validated it for the use of measuring HRV. You can check out the recent validation study here

How to use it:


Quick steps:

  1. Open the app and go to the “Edit” tab and make sure the finger sensor is selected. The option will appear as "FS"

  2. After plugging the finger sensor completely into your headphone jack (make sure phone your case doesn't prevent this), place the sensor on the tip of your left pinky with wire on top and the sensor (small bump) on the bottom. Make sure to adjust the sensor so that it sits near the tip of your pinky and is not placed too far up the finger. The pink generally works the best, but other fingers can be used as well

  3. Go to the "Measure" tab. Once the finger sensor signal is picked up, your heart rate will appear on the screen

  4. You can see the signal strength of your finger sensor displayed as a series of bars in the upper left corner of the "Measure" screen  Use these bars to help you adjust your finger within the sensor to get the strongest signal possible

  5. Let your heart rate stabilize and hit "Start" to begin the measurement


The BioForce finger sensor has been tested and is compatible with a variety of devices for both iOS and Android. If your device is not listed, it may be compatible, but it has not been tested so we cannot guarantee copmatibility
  • All iPhone models
  • iPad & iPod Touch
  • Samsung Galaxy series S3, S4, S5, S6 & S7
  • Samsung Tab 3
  • HTC One M8

How to get it:

The finger sensor can be ordered for $50 + shipping directly from our sensors page


  1. Gabriel Betancourt

    Gabriel Betancourt on 08/05/2016 7:50 p.m. #


  2. Gabriel Betancourt

    Gabriel Betancourt on 08/05/2016 8:07 p.m. #

    Will this be compatible with future Iphone models?

  3. BioForce Admin

    BioForce Admin on 08/06/2016 12:29 a.m. #


    There's no way to know what future iPhone models will be compatible with since there's no way to know they will or won't have. If the new iPhone 7 coming out does not have a headphone jack, which is the current rumor, then the finger sensor will require an adapter. It's also been rumored that they may provide one, but at this point it's all speculation until Apple releases the exact details on the phone. There's no way to know what Apple will or won't do in the future so there's no way to guarantee compatibility indefinitely but if it doesn't work, we'll certainly come up with an alternative.

  4. Gabriel Betancourt

    Gabriel Betancourt on 08/10/2016 4:12 a.m. #

    Makes sense, thanks a lot!

  5. Marco Sist

    Marco Sist on 08/13/2016 2:47 p.m. #

    Hi, do you think it may run on google nexus 5? the OS is Lollipop

  6. BioForce Admin

    BioForce Admin on 08/15/2016 2:32 p.m. #

    We've had some issues on Nexus so I think it probably will not work unfortunately

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