Try QuzzZRING, it's small and lightweight, and it's easy to forget its existence!

prefaceI have been in contact with smart wearable devices for almost 10 years since 2013, from the early Misfitmachine smart bracelet to the 1st, 2nd, 4th, and 6th generation Xiaomi bracelet, as well as playing with the Samsung Galaxy Gear generation, buying the SONYSmartWatch 3, going out to ask about TicWatch, and some messy smart wearable products that cannot remember their names. From early smartwatches that could install apps to exercise watches that have become accustomed to sleep monitoring, heart rate monitoring, blood oxygen detection, etc...

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