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Start a training session

Wear the OH1 around your forearm or upper arm, for details see Wearing your OH1

Start a training session as an independent training device

Before using OH1 as an independent training device, it needs to be registered and linked to a Polar Flow account. For details, see Setting up your OH1.

  1. Switch OH1 on by pressing the button until the LED is switched on and release.
  2. OH1 is now on, press the button shortly twice to switch recording on.
  3. When your heart rate is detected, the green LED will blink rapidly, and you can start your session.

After your training session, you can stop the recording by pressing the button until the LED is switched off. Then sync your training session to the Flow app and web service to view the details of your session. See Syncing for more information.

When used as an independent training device training sessions are stored under the Other indoor Sport Profile. The memory capacity is up to 200 hours of training.

Start a training session with a Polar wrist unit

Before starting, make sure the OH1 is paired with your Polar wrist unit. For details see Pairing

  1. Switch OH1 on by pressing the button until the LED is switched on and release.
  2. OH1 is now on, and can be used as a heart rate sensor with a Polar wrist unit.
  3. When your heart rate is detected, the green LED blinks once every two seconds.
  4. Start the session from your Polar wrist unit.

After your training session, you can stop the recording from your Polar wrist unit. Then sync your training session to the Flow app and web service to view the details of your session. See Syncing for more information.

Note that the Polar Fitness Test and Orthostatic Test available on certain Polar wrist units and bike computers cannot be performed with Polar OH1.

When using OH1 with a Polar wrist unit your training session may in some cases be shown twice in Polar Flow web service and app. This is can happen if the OH1 recording is accidentally switched on when starting your session. The duplicate session can be deleted in the Flow web service and app.

Start a training session with Polar Beat

Before starting, make sure the OH1 is paired with Polar Beat. For details see Pairing

  1. Switch OH1 on by pressing the button until the LED is switched on and release.
  2. OH1 is now on, and can be used as a heart rate sensor with Polar Beat.
  3. When your heart rate is detected, the green LED blinks once every two seconds.
  4. Start the session from Polar Beat.

After your training session, you can stop the recording by tapping the stop button in Polar Beat.