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[Black]
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Packaging list: Smart ring, charging cable, manual
Material: Aerospace titanium a11oy+epoxy resin
Basic function:Heart rate measurement/oximetry/B1ood pressure measurement/Sleep monitoring/Step Count/Calories/NFC
Bracelet memory :512kb
Bluetooth:5.0
Heart rate sensor :support
Step sensor :support
Battery capacity :28mAh
Standby time :About 4~6 days
Charging method :wireless charge
Waterproof Level :IP68
APP : Google: JSRings, ISO: JSRing
APP supports languages:English, French, Spanish, Portuguese, Italian, German, Dutch, Japanese, Czech, Arabic, Danish, Romanian, Chinese, Turkiye, Persian
Ring size:19mm 20mm 21mm 22mm(Refer to international standard size codes for corresponding models)