Physical Specifications:
-Unit dimensions (LxWxD): 23.5”-56.0” x 1.2” x 0.5” (60.0-142.0x3.0x1.2 cm)
-Weight: 2.1 oz (59 g)
-Module size: 29.4 x 51.4 x 8.5 mm
-Module weight: 1.7 oz (49 g)
-Size adjustment: Bi-fold
-Sizing range: 23.5”-42.0” (60.0-106.0 cm); 23.5”-56.0” (60.0-142.0 cm) with
optional strap extender
-Battery: CR2032
-Battery life: 12 months (Tri training 1 hour per day)
-Water rating: 5 ATM
-Operating temperature: 14°F-122°F (-10°C-50°C)
Radio frequency/protocol: 2.4 GHz ANT wireless communications protocol; -BLUETOOTH® Wireless Technology 5.0
-Number of concurrent BLE connections supported: 2
-Number of concurrent ANT connections supported: No limit
-Range: 3 m
-System Compatibility: ANT+, BLUETOOTH

Additional:
-ANT+® heart rate: yes
-BLE heart rate: yes
-Supports heart rate variability and advanced heart rate features: yes
-ANT+ running dynamics: yes
-Stand-alone activity monitoring (steps, all-day heart rate, calories and
intensity minutes)
-Supports TrueUp
-Stores and forwards heart rate: yes
-Swim interval heart rate statistics: yes