Garmin 57 Physical & Performance

Display size	2.0" diag (5.1 cm)
Battery type	Rechargeable lithium-ion
Display resolution	320 x 240 pixels
GPS	Yes
Physical dimensions	WxHxD: 5.62cm x 4.05cm x 2.19cm
Water rating	No
Weight	60.5 g
Display type	QVGA color TFT LCD
Battery life	Up to 30 minutes