Forerunner 265 Physical size: 46.1 x 46.1 x 12.9 (mm) Fits wrists with a circumference of 135-205 mm Touchscreen Color display Display Size: 1.3" (32.5 mm) Display resolution: 416 x 416 pixels Display Type: AMOLED Optional Always-On Mode Weight: 47 g
Forerunner 265S Physical size: 41.7 x 41.7 x 12.9 (mm) Fits wrists with a circumference of 115-178 mm Touchscreen Color display Display Size: 1.1" (28.1 mm) Display resolution: 360 x 360 pixels Display Type: AMOLED Optional Always-On Mode Weight: 39 g
Water rating: 5 ATM
Battery life Smartwatch mode: Up to 13 days (265), Up to 15 days (265S)