How do I find my size?
US sizes 7 to 13. Measure the inside of a ring you already wear on the same finger and match it to the size guide. Between sizes? Go up one. The ring should pass the knuckle with slight resistance.
Which phones does it work with?
iPhones on iOS 8.0 or later and Android phones on 5.1 or later, over Bluetooth, through the free QRing app.
How long does the battery last?
The maker rates a full charge at up to 10 days. The charging case in the box tops the ring up on the go, and the case charges over the included USB cable.
Can I shower or swim with it?
It is not rated for water by the maker, so take it off before showering, swimming or washing up.
Is this a medical device?
No. Heart rate, blood oxygen, sleep and activity readings are for general wellness and fitness, not for diagnosis or treatment.
What if it does not fit or I do not like it?
30 days, send it back, full refund. Plus a 12-month warranty against defects.
What does the app show?
Heart rate, blood oxygen (SpO2), sleep duration and quality, steps, distance and calories. It can also trigger your phone camera remotely.
How do I charge it?
Place the ring in the charging case; the case charges the ring. Charge the case with the included USB cable.
Where does it ship from, and how long does it take?
Orders ship within 1 to 3 business days and typically arrive in 8 to 15 business days in the United States. You get a tracking link when it ships.
Is there a warranty?
Yes. 12 months against defects in materials and workmanship. Contact us with your order number and a description of the issue.