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The Garmin Edge 840 is a GPS cycling computer with a touchscreen plus physical buttons, so it works with gloves or in rain. It adds adaptive coaching with a power meter and heart rate monitor, power targets on a course, and stamina insights that estimate how much effort you have left. Multi-band GNSS improves position accuracy under tree cover and between tall buildings. It suits road, gravel and indoor riders who want navigation and structured training in one unit; against the 1040 it is smaller and lighter, and against the 530 it adds touch and the newer training and accuracy features.
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Owners rate the Edge 840 highly for its dual touch-and-button control, accurate GPS and long battery life. Many praise the training and stamina features; some find the touchscreen less reliable in wet or gloved use and the menus deep.
The Garmin Edge 840 is a touchscreen cycling computer with button controls. The buttons work in any environment, and the touchscreen lets you tap, pan and swipe. It uses multi-band GNSS for more accurate positioning under dense tree cover and in urban areas.
When paired with a compatible power meter and heart rate monitor, it gives daily suggested workouts and training prompts that adapt to your training load and recovery. It also provides power targets throughout a course and stamina insights that show how much longer you can push. Prompts remind you to complete missed workouts.
ClimbPro shows remaining ascent and grade on every ride, with no course required. Ride type-specific maps highlight popular roads and trails and include searchable points of interest. You can adjust data fields on the device or from a paired smartphone. Through the Garmin Connect app, it pairs with apps and platforms including Strava, Komoot and TrainingPeaks.
