Fixing the connection between Smart Ear and Android

If you are having trouble connecting your Kinsa Smart Ear, don’t worry!  There are just a few simple steps to getting you on track.

IMPORTANT: If your phone is running Android 7.0 or later and pairing the Kinsa Smart Ear keeps failing, go to the phone’s Settings and turn off Bluetooth. Power off the phone and then power it back on. Turn on Bluetooth and try pairing the Ear with the Kinsa app once more. For a running thread on this issue see Google’s forum post here.


Get latest version of the Kinsa app

On your phone's web browser, go to

Remove your Kinsa Smart Ear from your phone's Bluetooth settings

  1. On your Phone, open the Settings app > Bluetooth (must be on). 
  2. Under Paired devices look for KS_ If it appears, tap on the gear icon next to it and select “Unpair”.
  3. Press the Home button to exit settings.

Reset your Kinsa Smart Ear

  1. Press and hold the small white button on the side of your Smart Ear thermometer.
  2. Next press and hold the large round power button located above the LCD screen.
  3. Keep holding both buttons down for 5-7 seconds until the screen resets and you hear two beeps several seconds apart.

Now you’re ready to pair! 

  1. Open the Kinsa app.
  2. Tap  ⚙️ Settings > ⨁ Add New Thermometer
  3. If your Smart Ear is turned off, press the round button to turn it back on.
  4. Tap “PAIR DEVICE”. Note that for some Android devices, the pairing request dialog may appear in the Notification bar at the top of the screen.

And you're done! Now you’re ready to take a temperature reading with your Kinsa Smart Ear

PIN Message: Some Android users may report seeing an “Incorrect pin or pass key” message preventing further set up. Certain android phones have a security feature named "Smart Lock” which prompts a PIN or pass key in order to complete set up of Bluetooth devices. The prompt can present itself in various ways, depending on phone type. Sometimes the prompt is in the Notifications bar at the top of the screen, it’s an audible alert, or it’s a dialog box on the screen. Each user should research how Smart Lock works on their individual device, including finding out what your PIN or pass key is for your device, for it may vary across device types.

Pairing issues can sometimes be related to receiving a pair prompt by Smart Lock, while not being aware such a prompt was received. It may be possible to adjust the Smart Lock settings to either not require a PIN for Kinsa, or disable it entirely. There are a number of tutorials and support articles about how to manage Smart Lock, so you can choose your favorite.

If you’re still having trouble, we’re always ready to help. Reach out to us at and we’ll be happy to sort this out for you!

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