One of the most unique features of the M3 is that it's able to connect to all three different types of monitoring devices: Bluetooth, ANT+ and 5.4 kHz. To connect to each of these types of devices, follow the steps outlined below.
The M3 connects via Bluetooth using the standard Bluetooth protocols. You need to first put the chest strap on before connecting to a device or app. To connect to a phone or tablet, DO NOT pair the M3 to the phone/tablet itself through Bluetooth settings. Instead, make sure to pair directly to the app that you're trying to connect to.
When connecting via Bluetooth, note that the M3 device name will show up including the unique ID number that can be found on the back of the sensor to avoid confusion with other devices that may be in the area.
If you're using Morpheus, you will connect in the Train screen prior to your workout.
When training with your phone nearby, it is recommended that you turn Bluetooth off in the phone to prevent any inadvertent connection.
Many devices like Garmin, Suunto and more use the ANT+ protocol in order to transmit heart rate. To connect to an ANT+ device, follow the instructions of your device to find and pair to the M3.
Note that some devices support connections to the M3 by either Bluetooth or ANT+.
5.4 kHz devices
In addition to Bluetooth and ANT+, the M3 also transmits a 5.4 kHz RF analogue heart rate signal. This is the oldest technology and was originally created and patented by Polar.
Many pieces of cardio equipment, including machines made by Life Fitness, Precor, Woodway, Keiser, Versaclimber, etc., still display heart rates transmitted in 5.4 kHz. You do not need to do anything to connect to these machines are compatible devices.
As long as you are within 1-3 ft of the monitor, your heart rate will automatically be displayed. Note that it's normal to see a slight difference in heart rates via 5.4 kHz compared to Bluetooth or ANT+. This is because there is a 2-3 second lag in all Bluetooth and ANT+ devices.