According to the latest leaks circulating on the internet, the Mi Band 4 might be announced in two variants. Both of these variants are said to sport a colour display with a new UI. The device is also expected to feature a bigger battery and is speculated to feature a 135mAh battery instead of the 110mAh battery found on the Mi band 3. The new Mi Band 4 could feature Bluetooth 5 for ‘seamless’ connectivity across multiple devices and the Bluetooth 5 protocol will also help with better battery life on the band. The Mi Band 3 comes with Bluetooth 4.2. The Mi Band 4 might be launched in two different variants – one with NFC and one without it. The NFC enabled variant is touted to have the model number XMSH08HM whereas the non-NFC variant’s model number is said to be XMSH07HM.