The Garmin Edge 840 Solar is a GPS cycling computer designed to help riders track their routes accurately, even in challenging environments like dense forests. It uses a multiband GNSS system, which combines signals from multiple satellite networks to improve location accuracy in areas where traditional GPS signals might be weak or blocked by trees. This makes it especially useful for off-road and trail cycling. The device features a 2.6-inch MIP transflective screen, which is designed to be readable in both daylight and low-light conditions. However, when more data is displayed on the screen at once, it can become harder to read. The unit is compact, weighing just 88.9 grams, and is intended to fit comfortably on a bicycle's handlebars. It offers up to 32 hours of battery life when used intensively, or 60 hours in power-saving mode, and includes solar charging through a special Power Glass screen that absorbs sunlight to recharge the battery. The Garmin Edge 840 Solar includes five physical buttons alongside a touchscreen, allowing users to start activities, confirm laps, or navigate through menus without needing to touch the screen. It automatically connects to the Garmin app when an activity is started, and the screen displays battery life information to help users manage their power usage. The device also sends notifications for direction changes, which can be helpful when visibility is limited. Priced at 549 euros, the Garmin Edge 840 Solar is currently available at a discounted price of 349.99 euros at Decathlon. For cyclists who prefer a larger screen, Garmin offers the Edge 1050 model as an alternative. Both models provide similar functionality, but the larger screen may be more suitable for users who need more visibility or want to display more data at once.