Garmin vivoactive 5 v2
Fitbit Charge 6 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. Libre smart push notifications where the glucose reading mirrors the smartphone 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, body battery, readiness for workouts Tracks running, cycling, swimming, yoga, and other multi-sport tracking. Also has sports apps for workouts modes and guided exercises. Allows creating and customizing workouts.
Performance metrics: Provides VO2 max, training effect, and recovery time.
Maps: Includes preloaded topographic maps.
Notifications Displays notifications from your phone.
Water resistant: Yes

Age

13+ years

13+ years

Battery

Up to 11 days of battery life

Up to 7 days

Brand

Garmin

Fitbit

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) or a health reimbursement arrangement (HRA)

Model

vivoactive 5

Charge 6

Phone

Yes

Yes

Price (USD)

$299.99

$159.95