Wearable Technology: Fitness (2)

Smart Ring - Free SpO2 Sleep Tracker | No Subscription | IP68 Waterproof Fitness Tracker | 24/7 Activity Monitor | Step Counter & Tracking | Sleep & Workout Accessory Gold 8

Fitness Tracker with Sleep Tracking, 24/7 Activity Tracker, Step Tracker, Heart Rate, Blood Oxygen, Stress Management, 5ATM Waterproof, No Subscription Fee for iOS & Android