SPECS
Status LED
Yes (tri-color)
Module size
68.0 x 31.6 x 10.0 mm (2.7″ W x 1.2″ H x 0.4″ D)
Size range
XS-S: Strap length: 56–72 cm (22″–28″)
Fits chest size 60–85 cm (23.5–33.5”)
M-XL: Strap length: 72–106 cm (28"–42")
Fits chest size 80–119 cm (31.5–47″)
Weight
With M-XL Strap: 61 g (2.2 oz)
Module Only: 18 g (0.65 oz)
Button
Yes
Water rating
5 ATM
Battery type
Lithium ion
Battery life
Up to 2 months (using 1 hour per day)
Detachable module
Yes
Charging method
Garmin proprietary plug charger
Smart Features
Pairs with Garmin Connect™ app
Transmits data over ANT
Transmits data over BLE
Supports secure BLE connections (with compatible Garmin device)
Number of concurrent connections supported
ANT: No limit; Bluetooth Low Energy: 3
Activity tracking features
Step counter
Calories Burned
Distance travelled
Intensity minutes
TrueUp™
Running features
Running Dynamics (with compatible smartwatch) Yes (including step speed loss)
Running pace and distance
Fitness features
Heart rate and HRV (heart rate variability)
Activity recording (controlled from Garmin Connect Mobile App) Cardio, Running, Cycling, Swimming, Basketball, Volleyball, Field Hockey, Ice Hockey, Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball, Mixed martial arts, Boxing
Team sport speed and distance (with compatible smartwatch or Garmin Connect Mobile App) Basketball, Field Hockey, Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball
Swimming features
Swim interval heart rate stats (with compatible smartwatch)
Stores and forwards heart rate data for swimming or stand-alone use cases: Yes (swimming or stand-alone use cases)
