The Xiaomi Watch S1 features a built-in 470mAh lithium-ion polymer battery, officially claimed to last 12 days in typical mode and up to 24 days in long-lasting mode. However, actualXiaomi Watch S1 Battery life varies depending on usage habits—some users have reported that with multiple functions such as heart rate, blood oxygen, stress, and sleep monitoring enabled, the battery drains by about 10% to 15% per day, resulting in a battery life of approximately 7 to 10 days. To extend the life of this large-capacity battery, proper maintenance and usage habits are crucial.
I. Mastering Scientific Xiaomi Watch S1 Battery Charging Habits
The ideal charge range for lithium-ion batteries is 20% to 80%. In daily use, it is recommended to start charging when the battery level drops to around 20%, and unplug the Xiaomi Watch S1 when the battery reaches 80% to 90%. The Xiaomi Watch S1 uses a magnetic wireless charging solution. The 10W magnetic wireless charger is very convenient; in actual testing, it can charge to about 50% in half an hour and fully charge in less than 2.5 hours.
II. Make good use of intelligent charging management. Through the Mi Fit App (or Mi Home App), go to “My Devices → Battery Management” to enable the intelligent charging mode: the system adjusts the charging current in segments according to the user’s sleep cycle between 11 PM and 6 AM the next day, avoiding prolonged periods of full charge idleness. Additionally, the app automatically generates a Xiaomi Watch S1 Battery health report every 7 days. When the system shows a battery life deviation exceeding 15%, it is recommended to perform a full charge-discharge cycle for calibration.
III. Optimize Settings to Extend Xiaomi Watch S1 Battery Life
If you find your watch draining the battery quickly, you can optimize it in the following ways:
Adjust screen brightness: Excessive brightness is a major power drain; it is recommended to adjust the brightness to a moderate level.
Disable unnecessary functions: For example, switch to manual mode for all-day heart rate monitoring and disable gesture functions such as raise-to-wake.
Limit Wi-Fi usage: Reducing the frequency of Wi-Fi scanning can effectively save power.
Enable Xiaomi Watch S1 battery saving mode: Long Xiaomi Watch S1 Battery life mode can last up to 24 days, suitable for use when not using all functions.
Be mindful of NFC cards: NFC cards with payment functions may increase power consumption.
IV. Beware of Temperature, the “Hidden Killer”
The Xiaomi Watch S1’s operating temperature range is -10℃ to 45℃, but the official recommendation is to use it in an environment between 0℃ and 45℃ for better stability.
V. Long-Term Storage and Regular Maintenance
If you need to leave the watch idle for an extended period (more than 3 months without use), fully charge it, turn it off, and store it in a cool, dry place. Furthermore, charge the Xiaomi Watch S1 battery at least every 3 months to prevent damage from over-discharge.
Additionally, it is recommended to perform a monthly battery calibration on the Xiaomi Watch S1: allow the battery to drain naturally to below 20%, then fully charge it to 100% using a certified safety charger. This helps the Xiaomi Watch S1 Battery level gauge accurately reflect the remaining power, preventing system errors.
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