Renpho - Smart Ring Health Tracker, Sleep Activity Monitor Long Battery No Subscription Titanium - Black - (2025)
Model: R-MZA01
SKU: 12759038
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Please Note: This is a smart ring sizing kit. Since the size of a Lynx smart ring differs from standard jewelry ring sizes, please purchase this sizing kit to find your perfect size and then purchase the Lynx health smart ring. The sizing kit includes 8 ring sizers (sizes 6-13) and a quick-start guide for this measuing tool to help measure your ring size more accurately.
Our fingers tend to change size throughout the day,it is recommended not to measure in the morning when fingers are smaller than usual.For the best fit,measure your finger towards the end of the day.
As the size or thickness of our fingers varies greatly depending on the temperature and time of day.Wear the ring for an extended time or multiple times before determining your ideal ring size.
This is where the ring sits,ensure it slides comfortably over your knuckle with a slight resistance.
Do not measure your finger in extreme weather,after intense workouts or when you are sick.
Ensure your hand is not swollen,sweaty,or cold during sizing,as these factors can alter your finger size.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.
