A great outdoor GPS which is ideal for hiking as it lets you store up to 500 interest points and 50 journey routes. What’s more the unit has an alarm function that will sound when you deviate off route or arrive at point of interest. The unit is also extremely waterproof and can be submerged in a metre depth of water for up to 30 minutes without breaking. There is also a great odometer and walking pace function so you can track your progress. The unit is not too expensive at around £100 which is great value with all the functions that you get.