{"id":5423,"date":"2026-05-28T03:30:43","date_gmt":"2026-05-28T03:30:43","guid":{"rendered":"https:\/\/www.batteriesfast.co.uk\/blogs\/?p=5423"},"modified":"2026-05-28T03:30:44","modified_gmt":"2026-05-28T03:30:44","slug":"how-many-days-does-the-xiaomi-watch-s1s-battery-life-actually-last-after-3-months-of-use","status":"publish","type":"post","link":"https:\/\/www.batteriesfast.co.uk\/blogs\/archives\/5423","title":{"rendered":"How many days does the Xiaomi Watch S1’s battery life actually last after 3 months of use?"},"content":{"rendered":"\n

The Xiaomi Watch S1, released at the end of 2021, is it still competitive in terms of Xiaomi Watch S1 battery<\/a><\/u><\/strong> life? I conducted an in-depth test after wearing it for three months, and here’s my take.<\/p>\n\n\n\n

First, the hardcore data: The Xiaomi Watch S1 has a built-in 470mAh super-large battery. <\/strong>The official claim is 12 days of typical battery life and up to 24 days in long-lasting mode. During my first week, I monitored my heart rate, blood oxygen, stress, and sleep with all my monitoring enabled. The battery drained by about 10% to 15% per day, and I only needed to charge it after 9 days, which isn’t too far off from the official claim.<\/p>\n\n\n\n

However, one user summarized the pattern: “Basically, I only need to charge it once a week,” while others admitted to charging it “every day and a half.” What’s the difference? The core difference is usage habits.<\/p>\n\n\n\n

A colleague of mine runs with GPS on every day and also wears Bluetooth headphones for calls, and his Xiaomi Watch S1 battery<\/a><\/u><\/strong> was completely drained in just 3 days. Another friend only used it for checking the time, receiving messages, and occasionally swiping their public transport card, and the Xiaomi Watch S1 lasted for over a week. The battery life performance was vastly different. Here are a few tips to optimize battery life: lower the screen brightness, turn off Wi-Fi and GPS, and switch heart rate monitoring from “all-day” to manual mode. In actual testing, the standby current dropped from 85\u03bcA to 52\u03bcA.<\/p>\n\n\n\n

TheXiaomi Watch S1 battery<\/a><\/u><\/strong>charging is also worth mentioning. The 10W magnetic wireless charger is very convenient; I can simply place it on my desk to charge whenever I want. In my tests, it charged to about 50% in half an hour and fully charged in less than 2.5 hours. I usually wear it while washing up and having breakfast, and the battery is almost fully charged, so I basically don’t need to set aside time to charge it.<\/p>\n\n\n\n

Of course, the Xiaomi Watch S1 also has its “battery life shortcomings.” The official “typical battery life” conditions are rather idealistic: 200 screen activations per day, 100 notifications received, and only 15 minutes of Bluetooth calls per week. This means that if you keep blood oxygen monitoring on all day and make frequent calls, the Xiaomi Watch S1’s battery life will quickly diminish. Moreover, this watch has been on the market for over four years, so if it’s a used unit, the battery is likely already aged, meaning the Xiaomi Watch S1’s actual battery life will only last 4 to 5 days.<\/p>\n\n\n\n

If you’re a light user, or happen to find a brand new, stocked unit, the Xiaomi Watch S1’s 472mAh battery, combined with magnetic fast charging, will still offer decent battery life. However, if you’re a heavy user, or considering buying a used unit, it’s advisable to think twice\u2014Xiaomi Watch S1 battery<\/a><\/u><\/strong> anxiety is even more frustrating than the watch running out of power and shutting down.<\/p>\n\n\n\n

<\/a><\/p>\n\n\n\n

3.87V 470mAh Replacement Smart Watch Battery for Xiaomi BW40-S1<\/u><\/strong><\/a><\/p>\n\n\n\n

Upgrade your Xiaomi Watch S1 with the high-performance 470mAh BW40-S1 battery, engineered with advanced circuit board technology to deliver exceptional performance and extended usage for your Xiaomi Watch S1. Designed for reliability and longevity, this battery ensures your device stays powered throughout the day.<\/p>\n\n\n\n

Find the best Xiaomi Smart Watch Battery price! Search Batteriesfast.co.uk for Xiaomi Smart Watch Battery<\/a><\/u><\/strong>. Get fast shipping and top-rated customer service.<\/p>\n","protected":false},"excerpt":{"rendered":"

The Xiaomi Watch S1, released at the end of 2021, is it still competitive in terms of Xiaomi Watch S1 battery life? I conducted an in-depth test after wearing it for three months, and here’s my take. 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