If you want to pair your Mi Band 6 with your device, follow the steps below -
1. Install the Mi Fit app on your phone.
2. Now go to Profile.
3. Under my devices, tap on Add device.
4. A list of options will appear, select Band.
5. A popup will appear, tap on Agree.
6. Now keep the band close to your phone and accept the pairing request on the band.
7. Now the band will start to connect, update its firmware and you'll be able to use it after the completion of updating all the resources.