GPS navigators have developed with great leaps lately. At the same time GPS map quality has gone up and their prices have plummeted. You can choose between button-operated and touch screen units - all our Garmin products are equally at home in rough conditions.
GPS components are also used in heart rate monitors and outdoor watches. GPS measurement allows you to get precise distance, speed and route data.
A traditional compass is still the absolutely necessary piece of gear for outdoor activities. It's not dependent of batteries and it keeps pointing north no matter what.