Sony has done a good job with their Xperia Z3+, Z4, and Z5 product family to make sure they work well with other products in the market. For those interested in an extremely affordable wearable product, the Xiaomi Mi Band is a good option that works well with this Sony Xperia product family.
To setup the Mi Band, you need to first download and install the Mi Fit App on the Xperia phone from Google Play.
After signing into your Xiaomi account, you will see a message saying that No Mi Band associated with this account. By click on this notification, you can then select the Mi Band to start pairing with the Xperia.
Searching for the Mi Band can take several minutes so you need to be patient. Once successful, you will then see that your Mi Band is now Signed in.
If you then click on the Mi Band you can see different settings that you can change. Once you get back to the main page, the syncing process with start automatically between the Mi Fit App and the Mi Band.
If you need to sync again, you just need to pull down the notifications section on the bottom and release.
The Sony Xperia Z3+, Z4, and Z5 works smoothly with the Xiaomi Mi Band unlike other phones like the Samsung Note 4.