There are two ways to establish Bluetooth connectivity.

Automatic:

Follow the pairing process to pair ColorFit Pro 4 with the NoiseFit app.

Once paired, the watch’s Bluetooth calling feature would be activated automatically.

Connect it with your phone’s Bluetooth to use the calling feature conveniently.

Manual

In case the Bluetooth call connectivity prompt does not pop up then you can establish the connection manually. 

On your watch: Swipe up from the main home screen. Tap the Bluetooth call icon to turn it on. 

On your phone: Go to Settings. Turn on the Bluetooth search and pair ColorFit Pro 4 to use the watch to make calls.