Battery power, or battery capacity, represents the amount of electrical energy that a battery can store. Xiaomi Mi 5 & Mi 6 Strap/Amazfit Band 5 Replacement Bands The Xiaomi Smart Band 8 has a built-in battery with a capacity of 190 mAh. That is 10 mAh more than the predecessor. Reason enough to advertise a runtime of up to 16 days. With the new always-on mode, it is then only 5 to 6 days, which is basically still a considerable time in view of the average runtimes of an Apple Watch and also coincides I think the MI Smart Band 5 actually lies about battery . When it is 99%, it is probably only about 75% because it takes 30 minutes to charge the last 1%. But I’m not sure why the MI Band isn’t charging to full…. I’ll do some research. Most devices don't stop charging when the device says it's at 100%. Some people believe this is OLED/AMOLED. OLED/AMOLED. The type of technology used in the display. is dustproof and water-resistant. Xiaomi Mi Band 4. Xiaomi Mi Band 8. The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water. When it comes to design, the Xiaomi Mi Band 8 looks very similar to Mi Band 7. Both fitness bands have a rubberized, practical look that’s unmistakably geared towards fitness tracking. The Mi The battery performance on the Mi Band 5 is generally pretty good. However with the promise of more features, that battery life is inevitably going to take a hit. User manual ×1. Mi Smart Band 5 Display 1.1" AMOLED display Display resolution: 126*29Display color depth: 16 bitDisplay backlight: Maximum brightness ≥ 450 nits, adjustableDisplay button：One touch-button (wakeup, return) Sensors High precision 6-axis sensor and PPG heart rate sensor 6-axis sensor: Low power-consumption 3-axis acceler. Heart rate sensor. innovative ear hooks. Amazfit Band 5 is remarkably discreet. Stylish design Great screen Long battery life. updated to reflect the functions of the currently connected device and is very comprehensive. a full-featured activity tracker and performs as advertised. Gorgeous design. long battery life. I also have 2 Mi Band 5s. I bought one on the release day and the other one a year later. My first one can last only 3 days on a single charge, meanwhile my brother's one (the second 5) can last even months. You should cycle the battery from 0% to 20% and then from 100% to 80% a few times. The BMS should adjust the battery's capacity. Battery Capacity: 125 mAh Lithium Polymer Battery. Water Resistant: 5 ATM. Bluetooth: Bluetooth 5.0 BLE. See full specifications here of the Mi Band 5: https: pSa5kM7.