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This method is the most direct. Apple's Apple Watch provides a "power saving mode" function. In this mode, the watch will turn off many built-in functions, such as heart rate sensor and wireless Bluetooth, to save power.
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To enable power saving mode on Apple, just press and hold the "Side Button" as shown in the figure.
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Next, we can slide the "power saving mode" bar to enter the power saving mode.
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Of course, in the power-saving mode, the dial will not be displayed as in the normal mode, and only a digital time will be displayed in the upper right. Therefore, this power saving method is only applicable to the situation that your watch is extremely low at present, such as 10%.
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Turn off the heart rate sensor
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Apple Watch will automatically measure our heart rate in the background for a certain period of time, so it can be used to record our heart rate, especially during exercise, which is often monitored. Because it consumes a lot of power when measuring the heart rate, you can turn off the heart rate function if you want to save more electricity.
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First, we need to open the Apple Watch application on the iPhone.
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In the column of "My Watch", find the column of "Privacy" and click enter.
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Then click on the "exercise and fitness" column in privacy.
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There are two options: heart rate and fitness tracking, both of which need to be used to measure heart rate. By default, they are open. If you want to save more electricity, turn them off.
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In addition, in my observation column, there is also a "fitness activity" option, click to enter.
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Then you will see an "energy saving mode" option, which can save electricity without measuring the heart rate after shutdown.
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Close some notification messages appropriately.
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In addition, the Apple Watch watch will display notification information from the iPhone. If there are too many notification messages on your iPhone, there will be more messages on your mobile phone, which will inevitably increase power consumption. The way to turn off notifications is to manually turn off notifications for some applications directly in Settings-Notifications of iPhone.