(UPDATE: It's official) Leaked promotional images show off the Mi Band 3 in all its glory

Update: Xiaomi has confirmed that two variants of the Mi Band 3 will go on sale, retailing for $25 and $30 - the more expensive of the two includes NFC integration. Aside from this feature, though, both variants are identical, including a 110mAh battery that allows for 20 days of battery life. Also, Bluetooth 4.2 LE. In regards to a release date, however, the Chinese brand is yet to make an official announcement.

Xiaomi has already confirmed that it will be unveiling its third-generation Mi Band later on today, but now, just hours before the event, a number of promotional ...