Pair your vivosmart 4

Please note that the following steps are for mEMA on Android. Please follow this link to pair your Garmin device on mEMA-Sense for iOS.


  1. Phone's Bluetooth should be turned on.
  2. vivosmart 4 should be:
    1. Reset to factory default -- Instructions taken from Garmin website
      1. Press Device menu symbol  to view the menu.
      2. Select Settings menu symbol > Device information symbol  > Reset.

      3. Select an option:

        1. To reset all of the device settings to the factory default values and save all user-entered information and activity history, select Reset Default Settings.

        2. Recommended -- To reset all of the device settings to the factory default values and delete all user-entered information and activity history, select Delete Data and Reset Settings.

      4. Once option is selected, an informational message scrolls in the device.

      5. Press Device menu symbol  

      6. Select Checkmark symbol  

    2. Turned on 
    3. Within Bluetooth range of phone
  3. Garmin Connect app should not be installed on phone.
    1. If Garmin Connect was previously installed on phone, uninstall Garmin Connect
  4. If the vivosmart 4 was previously paired on phone:
    1. In phone's Bluetooth settings, forget the vivosmart 4
    2. The vivosmart 4 should be re-started (plugged in and then unplugged)

Steps to pair:

1. From the initial login screen, check option "Enable Garmin"
2. Once "Enable Garmin" is checked, you should see the Devices section. It will have the green command "Start Scan", and the Garmin data types list.

Tap button "Start Scan" while your vivosmart 4 is within Bluetooth range
The vivosmart 4 should appear with green command option "Pair".

Tap button "Pair".
A pairing request will appear as a notification through your phone's native notification system. Tap "Pair & Connect" command.
The window "Pair with vivosmart 4?" will appear, requesting a pin. 
The pin is a six-digit number which will appear on the vivosmart 4. Input the pin in the "Pair with vivosmart 4?" window.

Note: Pin is randomly generated each time. Pin in image is not the pin which will be required to pair your devices.
Once pin is input, the mEMA screen will show that it is pairing.
Once paired, the Garmin device icon at the top-right of the screen will no longer be grayed out, and Garmin data types will begin to be recorded in mEMA. You can check or uncheck different data types to determine which to keep for your study. To learn more about the different data types, follow this link.

In order to stop monitoring Garmin data, tap green "StopMonitoring" command in the Devices section.

In order to forget the vivosmart 4 device which you have paired, tap the red "Forget" command in the Devices section.

To disable Garmin, uncheck "Enable Garmin". The Devices section will disappear.
Note:We recommend not enabling notifications through the Garmin. We can't control when those notifications are sent or when they will be displayed on the Garmin, which can lead to delayed notification times and other issues.

When the Garmin device is first paired, an alert will appear on the phone asking if you would like to allow the Garmin device to display notifications. Select "Don't Allow".

If Notifications permission was given to the Garmin device, it can still be turned off. To turn off notification permission for the Garmin, go to the phone's Settings menu > Apps & notifications > Special app access > Notification access

Toggle off permission for "mema GNCS", which is Garmin through mEMA.

Once paired:

The following conditions need to be met for Garmin data to be collected by the mEMA or mEMA-Sense apps:

  1. Phone's Bluetooth turned on
  2. Garmin device paired in the app
    1. This should only need to be done at setup.
  3. The Garmin device and the phone within Bluetooth range of each other
    1. The exact range will depend on the phone model. Most phone models have a Bluetooth range of at least 50 meters.
  4. The app should be open in the background
    1. The app can only collect data while it is open. If the app is closed, 
  5. The phone should not automatically close the app
    1. Phones have battery-saving features which will automatically close an app in the background. This article contains more information on how to exempt mEMA or mEMA-Sense from those settings.
  6. The participant should upload the Garmin data
    1. The app doesn't initiate a Garmin data upload on its own. Garmin data is uploaded at one of two times:
      1. When Auto Upload is enabled on a participant's account and they have just finished a survey assignment
      2. When the participant initiates an upload event in the app by pressing any of the following: 
        1. Home Page - Synchronize
        2. My Codes Page - Upload New, Upload All