I bought to replace AW 5, so I didn’t notice much difference. More precisely, it is not there, except for the presence of an oxygen sensor. Plus, it still noticeably holds the battery longer, when using all the functions. For example, I charged up to 100% at 5 pm, after 24 hours of charging 51%. Accordingly, with AOD enabled, using an application for monitoring sleep, etc. and they themselves periodically measure the oxygen in the blood. With a similar use of 5 by this time, 13-17% of the charge remained. But maybe just new for now, we'll see how it goes
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