This GPS running watch is made for runners and triathletes like you who need detailed training stats and on-device workouts plus smartwatch functions.
Physical Size: 43.8 x 43.8 x 13.3 mm (Fits wrists with a circumference of 126-216 mm)
Display Size: 1.2" (30.4 mm) diameter
Battery Life: Smartwatch mode: Up to 7 days
GPS mode with music: Up to 6 hours
GPS mode without music: Up to 16 hours
UltraTrac™ mode: Up to 21 hours