+Tracks sleep and activity throughout the day
+No subscription required to use the app
+Smart ring form factor worn on the finger
$159.00-20%List: $199.00
as of 11/04/2026 00:52 PST - DetailsProduct details
RENPHO Lynx Smart Ring, Subscription-Free App, Black, Size 10 | All Day Sleep & Activity Tracking, Includes Charging
$159.00as of 11/04/2026 00:52 PST - Details
View on AmazonPros
+Tracks sleep and activity throughout the day
+No subscription required to use the app
+Smart ring form factor worn on the finger
+Size 10 option with charging accessory included
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