Smart health ring with heart rate, SpO2 and sleep tracking

A stainless-steel ring that quietly tracks heart rate, blood oxygen, temperature and sleep around the clock, with no screen to charge every night. The app turns the data into plain-language insights, and a gesture lets you trigger your phone camera.

What's in the box

• Smart ring
• Magnetic charging cable
• User manual

Specs

• Sensors: heart rate, blood oxygen, body temperature, sleep stages, stress, steps and calories
• Water resistance: 5 ATM (swimming and showering)
• Connectivity: Bluetooth 5.4; iOS and Android app
• Battery: 15 mAh, magnetic charging
• Body: stainless steel, about 3 g
• Sizing (inner diameter): 7 = 17.3 mm, 8 = 18.1 mm, 9 = 18.9 mm, 10 = 19.8 mm, 11 = 20.6 mm, 12 = 21.4 mm, 13 = 22.3 mm
• Certification: FCC