Pairing with a Watch or Bike Computer

TIP: You can go to garmin.com/VariaRearVue820-CompatibleDevices to make sure your device is compatible with the Varia™ RearVue 820 radar tail light.
  1. Make sure there are no other sensors within range that may interfere with pairing the Varia RearVue 820 device.
  2. While the Varia RearVue 820 device is turned off, hold the device button for 2 seconds to enter pairing mode.

    The status LED flashes Purple.

  3. Select an option:
    • On a Garmin® bike computer, select Menu symbol > Sensors > Add Sensor > Search All.
    • On a Garmin watch, from the menu, select Sensors & Accessories > Add New > Search All.
  4. Select the Varia RearVue 820 device.

Your compatible Garmin device screen shows a sidebar and emits alert tones when it detects a vehicle approaching behind you. Additional options are available on compatible Edge® bike computers (Edge Bike Computer).

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February 2026