Polar H7 Not Pairing? Discharge It

I you have a Polar H7 that all of the sudden was unable to pair, you may need to discharge the sensor. To do so:

  1. Trash the Pairing. Go to Settings -> My Sensors -> Heart Rate Monitors -> Bluetooth Smart -> Details -> Delete. This step is only needed if the H7 is “ON”.
  2. Remove the battery from your Polar H7. Using a coin, open the battery cover by turning it counterclockwise to OPEN. Remove the cap. Using a sharp edge (knife), lift the battery out from inside the cap.

    Photo 1: Intact battery

    Photo 2: Battery being lifted from the cap

    Photo 3: Battery successfully extracted!

    Note: When removing the battery, make sure the sealing ring is not damaged, in which case you should replace it with a new one. You can purchase the sealing ring/battery kits at well-equipped Polar retailers and authorized Polar Services.

  3. Close the back of the peanut that used to house the battery, and clip it on to the belt, without the battery.
  4. Put sensor on and wear for 30 seconds to 1 minutes
  5. Remove H7 peanut and insert battery. Remount on chest
  6. Re-pair the H7 with Fitdigits by going to Settings -> My Sensors

If you are still unable to pair, please contact support.

Troubleshooting Your Heart Rate Monitor & Other Sensors

#1 Issue – Low Battery 

Test the battery, and if necessary replace it. Low battery can cause strange data including abnormally high or low readings. Within our app, after changing the battery, you will need to trash the sensor and pair again. If battery replacement does not fix your issue, try the following tips:

Polar H7 or Other BLE (Bluetooth Smart / Bluetooth Low Energy / Bluetooth 4.0) Compatible Heart Rate Monitor

  • Paired With Another iPhone : Make sure no other iPhone is currently connected and communicating with your BLE heart rate monitor. If the heart rate monitor is paired with another iPhone, you will not be able to use the HRM
  • Close Other Paired Apps: If there are any other apps on your iPhone that are communicating with your BLE heart rate monitor, terminate them. The HRM will only be able to pair with one fitness app at a time.
  • Lots More Tips:

Troubleshoot Your Bluetooth Low Energy Heart Rate Monitor (BLE HRM).

Spikes or dropouts? See here.

Scosche Rhythm+ Heart Rate Monitor

Foot Pod (iOS)

  • Activate: Tap your foot in a running motion to activate the foot pod.
  • Installation: Ensure the arrow on the foot pod is facing your toes.

Speed and Cadence Sensors (iOS)

  • Activate: Rotate the pedals a few times to activate the sensor before pairing
  • Choose Sensor: If you are using a Spin Bike make sure you are using a Cadence Sensor. For an outdoor bike, use a Speed and Cadence Senso
  • Installation: Proper installation including positioning of your spoke and pedal magnet as well as the arm distance from spokes is very important.

Note: It has been reported that some HRMs, such as the Wahoo TICKR belt, might have issues due to the belt having both cadence and heart rate. Trying to pair cadence sensor after pairing the HRM caused trouble. The solution was to pair the cadence sensor first, then the heart rate monitor.

If you are still experiencing difficulty, please contact Customer Support

Troubleshoot Your Bluetooth Low Energy Heart Rate Monitor (BLE HRM)

Fitdigits is compatible with Bluetooth Compatible sensors as long as your device is compatible. If you are having issues pairing or are getting inaccurate readings, try the following troubleshooting steps:

        • Is Your Device Compatible: View our Compatible Devices for more details.
        • Have you upgraded your app: You must have upgraded your app in order to use heart rate training and tracking features.
        • Wet the Electrodes: Make sure the contact strips (electrodes) on either side of the heartbeat pod / transmitter are wet with water, saliva, or gel to increase connectivity.
        • Clean your HRM: It is recommended to clean your HRM strap after every use. Rinse the strap under running water after every use and hang to dry. Clean the strap gently with a mild soap and water solution when needed. Do not use moisturizing soaps, because they can leave residue on the strap. Failure to do so will resort in inaccurate readings.
        • Reset Bluetooth: Try going to your Settings->Bluetooth, turn Bluetooth OFF, wait for about 30 seconds, and turn it back on.
        • Trash and Re-Pair SensorIf the app cannot acquire your sensor when beginning a workout, Trash and Re-Pair the Sensor
        • Manually Close Your App: Exit the app and then double tap the iPhone home button. Look for the Fitdigits app and swipe up. Your app has now been manually closed. Relaunch the app and try pairing again.
        • Discharge Your Sensor If you cannot pair the sensor, try discharging the sensor
        • Change Batteries: Make sure your belt’s battery level is not low. If in doubt, try changing the battery to see if it fixes the problem.
        • Is Your HRM Paired With Another Device : Make sure no other Device is currently connected and communicating with your BLE heart rate monitor. If your heart rate monitor is paired with another device, you may not be able to use the HRM.
        • Check on if your device is Auto-Pairing with your HRM: Sometimes in the device Bluetooth settings, the Polar HRM will get auto paired every time, and you can’t delete it from the list by the normal methods of tapping the (i) then Remove.If you can’t see (i) after Connected/Not connected on your HRM:
          • Close your Fitdigits app
          • Disable Bluetooth on your device
          • Reboot your device (press the home and power buttons until the Apple logo appears)
          • Enable Bluetooth and try again, you should be able to remove the HRM from the bluetooth section on the device now, and re-open your Fitdigits app
        • Close All Other Apps Paired With Your HRM: If there are any other apps on your device that is communicating with your BLE heart rate monitor, terminate them. The HRM may only be able to pair with one fitness app at a time.
        • Power Down Your Device: If none of the above steps resolve your issue, power down your device and then turn it back on.

If you still cannot pair with your Bluetooth 4.0 (BLE) HRM, contact Fitdigits Customer Support.