Physical Specifications:
-Unit dimensions (LxWxD): 23.5”-56.0” x 1.2” x 0.5” (60.0-142.0x3.0x1.2cm)
-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”-56.0” (60.0 - 142.0 cm)
-Battery: CR2032
-Battery life: 10 months (Tri training 1 hour per day)
-Water rating: 5 ATM

Additional:
-ANT+® heart rate: yes
-Supports heart rate variability and advanced heart rate features: yes
-2.4 GHz ANT wireless communication protocol: yes
-Running dynamics: yes
-Stores and forwards heart rate: yes
-Swim interval heart rate statistics: yes
-Non-slip design for pool swimming: no
-Pool chemical resistant: no