Garmin Fenix 8 v2
Garmin vivofit jr 3 v2

Device Details

Activity Features

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

Activity Tracking: Monitors steps, active minutes and sleep, and offers games and challenges Sends activity and chore reminders.
Water resistant: No

Age

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

4+ years

Battery

Up to 10 days

Up to 1 year

Brand

Garmin

Garmin

Continuous Glucose Monitoring (CGM) Compatible

Dexcom (G6 or G7)
Freestyle Libre 

No

FSA/HSA Eligible

Possibly with Letter of Medical Necessity (LMN)

Possibly with Letter of Medical Necessity (LMN)

Model

Fenix 8

vivofit jr 3

Phone

Yes

Yes

Price (USD)

From $1,000.00

$89.99