Oura Ring copy v2
Garmin Fenix 8 v2

Device Details

Activity Features

Activity Tracking: Steps, heart rate, activity score, sleep, body composition, calories tracking, readiness score, temperature, movement
Notifications: Alerts for calls and messages (with a paired device)
Water resistant: Yes

Activity Tracking: Monitors steps, calories, distance, heart rate, sleep tracking, blood oxygen, stress tracking, GPS, energy levels, hydration and women’s health. Tracks running, cycling, swimming, yoga, and more. Also has sports apps for workouts modes and guided exercises.
Performance metrics: Provides VO2 max, training effect, and recovery time.
Maps: Preloaded topographical maps for navigation.
Water resistant: Yes

Age

18+ years

13+ years or 22+ years for ECG app (only available in some regions)

Battery

Up to 7 days

Up to 10 days

Brand

Oura

Garmin

Continuous Glucose Monitoring (CGM) Compatible

Yes

Dexcom (G6 or G7)
Freestyle Libre 

FSA/HSA Eligible

Yes

Possibly with Letter of Medical Necessity (LMN)

Model

Ring

Fenix 8

Phone

Yes

Yes

Price (USD)

$349

From $1,000.00