Improve yourself every day with the Edge 840 bike computer featuring touch and button controls. Innovative functions help you optimize your power output and manage your energy effectively. With adaptive coaching, you receive the perfect support for your upcoming competitions. The Edge 840 bike computer boasts a battery life of up to 26 hours in GPS mode and up to 42 hours in power-saving mode, providing you with enough power for multi-day tours. Get daily training recommendations and instructions displayed directly on the screen. Based on upcoming events, you receive personalized coaching tailored to your current training load and recovery. The multi-frequency reception of global satellite systems (GPS, GLONASS, GALILEO) allows for highly precise route tracking—even in narrow mountain valleys or urban canyons. The proven ClimbPro feature can now be used without a pre-installed route. Stay informed about upcoming climbs with details on gradient, remaining distance, and elevation gain. This way, you can manage your energy effectively. Compare your cycling abilities with the demands of a specific route to gauge what lies ahead. The Power Guide helps you find the optimal power output for your route and its elevation profile, enabling you to develop the perfect performance strategy for the course.