Shulou(Shulou.com)11/24 Report--

Thank you, CTOnews.com netizen Xiaoyi, for your clue delivery! CTOnews.com, Sept. 8 (Xinhua)-- the newly released Apple Apple Watch Series 8 adds a new low-battery mode feature that doubles battery life by turning off some features. However, this feature is not limited to the latest Apple Watch. At the launch event, Apple said that with the launch of the watchOS 9 Series 4 and subsequent products on September 12, it will also support low power mode.

Apple did not say whether the mode will be as effective on older devices as it claims on Apple Watch Series 8 and Apple Watch Ultra (Apple says the low-power mode of Apple Watch Series 8 with iPhone can last up to 36 hours). However, according to the understanding of how it works, at least on some Apple Watch models, the effect will be relatively poor.

The low power mode saves power by temporarily disabling or restricting the use of some sensors and functions, such as round-the-clock retinal display, automatic start of physical training, heart health notification, etc., while keeping motion tracking and fall detection on. However, Apple Watch Series 4 and Apple Watch SE themselves do not support round-the-clock retinal display.

According to CTOnews.com netizens, when the low power function is turned on, the electricity shows a yellow prompt, the background heart rate measurement is turned off, the heart rate notification, the arterial transfer rate and atrial fibrillation prompt, and the blood oxygen measurement are measured.

CTOnews.com learned that Apple did not say whether Apple Watch SE also supports this feature, and Apple Watch SE does fit the description of "Series 4 and future products," but Apple Watch SE's product page does not mention low power mode.

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