The Huawei Watch GT 4 not only records sleep, but also sleep breathing. There is also a new cycle calendar app.
Huawei Watch GT 4 receives usability improvement with latest software update - News
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Huawei Watch GT 4 gets new HarmonyOS update with software polish & new features.
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Huawei Watch GT 4 gets first software update - S24
Huawei Watch GT 4 review: fitness focused, fashion conscious
Huawei Watch GT 4 now measures your sleep and SpO2 better thanks to a new update - Gizmochina
Huawei Watch GT 4 smartwatch adds an app grid name and system optimizations with the latest firmware - Huawei Central
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