Here is the most rugged GPS in Garmin family, Garmin Montana. The gadget is waterproof thing which can be mounted to whatever surface you want. Thus, it’s an ideal gadget for your adventure or outdoor activities.
Having a 4.inch Sunlight-readable dual-orientation 65k touchscreen LCD with 272×480 resolution, 3-axis compass and satellite imagery compatible, the Garmin Montana helps you to guide your way in second turn-by-turn by voice or touch, landscape or potrait. Moreover, the enable to use AA batteries is giving more times usage at the field where electricity is hard to find. It also features geo-tag and pictures viewer.
Fashioned in 7.48 x 14.42 x 3.64 cm, the Garmin Montana GPS is available in three models: Montana 600 (£429.99), Montana 650(£499.99), and Montana 650t(£549.99). Did I mention a 5MP built-in camera (not available for Montana 600) and a up to 3.5GB built-in memory? [Dandy Gadget Source]