Helios Smart Ring
Tech specs 
MaterialAnti-allergic, scratch free polymer material
Battery life24 hours
RechargeableYes (Micro USB). Lithium Ion Polymer battery
Water resistanceWater and dust production
SensorsHigh accuracy UV index sensor
Activity trackingNo
SOS buttonNo
OtherVitamin D coach, Sunlight coach, Daylight coach
Affiliate link*Helios Smart Ring
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