The Garmin Edge 840 Solar Touchscreen Bike Computer offers adaptive coaching when paired with a compatible power meter and heart rate monitor. It provides power targets and stamina insights to help manage your efforts. With solar charging, it ensures longer rides and offers superior accuracy under dense tree cover or in urban areas, thanks to multi-band GNSS technology. The device features button controls and a responsive touchscreen for easy navigation. Whether you're riding on roads, trails, gravel, or indoors, it provides insights and workouts to help you understand your strengths and weaknesses and prepare for races or personal milestones.