CONTINUOUS SPO2 & HR TRACKING:
The CIRCUL continuously tracks and records your blood oxygen & Heart Rate levels; records your workout routine, heart rate, steps & calories burned; and during sleep SpO2, HR and sleep stages, and can alert you via your CIRCUL mobile app to SpO2 levels you set for your personal training and tracking

ADJUSTABLE SIZING FOR A PERFECT FIT:
This sleep and fitness ring comes in two sizes which are adjustable to fit your finger so there is no wasting time with a sizing kit; small fits sizes 5-9 and large fits sizes 9; all in all 5-12 sizes

OPTIMAL BATTERY LIFE & QUICK CHARGING TIME:
Be ready to go at any time with up to 15 hours of use and quickly recharge in 90 minutes or LESS with the included (2) USB chargers

TRACK & SHARE STATS:
Share your sleep and workout records with your partner, trainer, physician, caregiver or family member to take charge of your own health

IOS AND ANDROID COMPATIBILE:
Download our app for iOS or Android operating systems and follow your workouts, sleep stages and blood oxygen levels in our easy to read platform