Xiaomi Watch S5 Brings Long Battery Life (21 Days) to Everyday Wear

Slim dimensions and a capable display give the new Xiaomi Watch S5 a strong foundation for daily use. At 46 millimeters across and just under 11 millimeters thick, the watch weighs only 46 grams without a strap. This keeps it light enough for all-day and all-night wear without drawing attention on the wrist. Stainless steel forms the frame across color options that include black, silver, ceramic blue, and jungle green. A 5 ATM water resistance rating handles swimming and showers without issue.

The 1.48-inch circular AMOLED panel provides excellent clarity, with 480 by 480 pixels that seem crisp even up close. In extremely sunny settings, brightness can reach 2,500 nits, with the entire screen reaching 1,500 nits. The always-on display is still available for those who want to quickly see the clock or their notifications while on the road. Compared to some of Xiaomi’s previous smartwatches, it’s much easier to read outside thanks to the increased brightness and small bezels that make the screen appear larger.

The battery is a respectable 815 mAh, but Xiaomi claims you can get up to 21 days out of it if you keep things low-key, which includes 100 texts per day, 6 incoming calls, 3 alarms, some Bluetooth talk time, music listening, and roughly 90 minutes of exercise monitoring. In normal use, however, you should expect roughly 14 days. When you turn on the always-on display, the number drops to about 9 days. That’s really outstanding, especially given that most other major brands recommend charging your watch every day, or every other day. Of course, your mileage will always vary based on how you use the watch, but the larger battery and efficient HyperOS 3 software provide a lot more breathing room if you don’t want to charge it every night.


The heart rate sensor has been upgraded, now using four LEDs and four photodiodes to provide more consistent readings whether you’re sitting idle or working out. Of course, the watch also monitors blood oxygen levels. Heart rate variability data is used to monitor how well you sleep, and you now receive weekly and monthly reports to help you stay on top of things. There’s also a barometer, compass, accelerometer, and gyroscope to let you track your movements and monitor your environment. For all you outdoor enthusiasts out there, the built-in dual-frequency GPS allows you to receive more accurate directions without having to have your phone nearby, even if you’re a long way away. There are over 150 sport modes built in, covering almost everything from easy treks to more severe pursuits such as professional cycling and skiing. One of the entertaining features allows you to track cheering gestures throughout events and provides a fun breakdown of your heart rate, calories burned, and number of shouts received.


HyperOS 3 runs the show, with silky-smooth performance and a plenty of watch face options to keep things looking new. It works with Android phones from 8.0 and iOS devices from 14.0 onwards, all via the Mi Fitness app. Notifications arrive on time, and most smartphones provide rudimentary control functions such as remote camera shutter or audio playback. Of course, utilizing a Xiaomi phone has some additional perks, such as easier data sharing with other devices. For navigation, there’s a physical crown and side button, as well as a touchscreen to assist you get around.


Magnetic charging is quite simple; simply place your watch on its charging dock and you’re ready to go. The price is also quite competitive, with regular hues starting at around €180 and brighter finishes costing up to €200. In some locations, you may be able to get it for even less, especially if you are fortunate enough to catch a nice promotion. That puts it in a better position than some of the other smartwatches on the market, which have a significantly shorter battery life and little else. Since its first release in China, availability has expanded slightly; you can now obtain one in Europe and other locations as well.
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