Helix Biosystems · Smart Rings
Optical PPG pulse oximetry, 8-day battery, zero screen
$389 $440 ★ 4.9 (115 reviews) 14 in stock
Finish / color
Size
Specification matrix
Biometrics
Red & green PPG, skin temp
Water
100m / 10 ATM
Battery
8 days inductive charge
Weight
3.4 grams
Materials
Titanium Shell, Medical-Grade Resin
Connectivity
Bluetooth LE 5.3, NFC Digital Key
Sleep staging, HRV and temperature trends from 3.4 grams of titanium — no screen, no subscription.