In fact, it says that it’ll cut overall battery life by over 50 percent, and with that and advanced tracking enabled, I ran out of battery within just 3 days. That only gets worse if you enable the always-on display, a fact the smartphone alerts you to when you activate it. With advanced tracking – Sp02 monitoring, constant heart rate tracking and more – enabled, I found the Mi Band 7 would last closer to 7 days before it’d need a top-up. The company claims that it can last up to 14 days with light use and nine days with heavy usage, but I’ve not quite found that to be the case in testing. The Xiaomi Mi Band 7’s battery is larger than its predecessor at 180mAh compared to 125mAh, but with the addition of a larger display, there isn’t much difference in overall battery life. Always-on display shortens battery life by more than 50%.Big sacrifice to data collection to improve battery.14-day battery life claims aren’t accurate.

If you do most of your exercise outdoors and like the idea of leaving your phone at home, you might prefer the $119.95/£129.99 Fitbit Charge 5 with built-in GPS.

Download mi fit band 7