When looked at side by side, you wouldn’t notice a lot of changes when compared to the last-gen Mi Band 2 in terms of the exterior, except for the addition of a 3D curved glass with support for touch input instead of a flat OLED panel with a button for navigation on the Mi Band 2. The silicone strap or band remains largely similar while the main capsule shaped tracker has been bumped up in size due to a larger 0.78-inch OLED display along with a slight depression at the bottom which acts as a touch capacitive button. The underside of the tracker sports a heart rate monitor while one of the sides has 2 contact pins which connect to the proprietary charging cable. When compared to the last-gen Mi Band 2, the Mi Band 3 brings in some much-needed improvements and features like the ability to navigate through different menus by swiping on the display which feels much more intuitive than using a single button. You can also read and dismiss your notifications from the band itself which can be really helpful. The Mi Band 3 is water resistant up to 50m or 5ATM pressure and the battery inside is a 110mAh unit which Xiaomi claims will last up to 20 days on a single charge.