Loop Ring / Wearable
The quieter
instrument.
Loop Ring sits on your finger and reads what the watch confirms. Pulse, temperature, SpO2 — all from a 2 mm ceramic band. No screen. No buttons.
Sensors
Six-channel PPG in ceramic
Green, red, infrared and UV diodes set into aerospace ceramic. Reads pulse, skin temperature and blood oxygen continuously without a screen.
Endurance
Seven days per charge
A 22 mAh solid-state cell powers seven days of continuous sensing. The dock charges in under ninety minutes via the Tester power standard.
Integration
Paired to the Watch Pro
Loop Ring is a sensor extension of the Watch Pro. When both are worn, data is fused for higher accuracy readings and cross-validated sleep staging.