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Garmin Edge 840 Bike Computer

Niel Ubod June 9, 2024


Garmin’s newest touchscreen performance GPS computer!

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Garmin Edge 840 Bike Computer

The Garmin Edge 840 Bike Computer is Garmin’s newest touchscreen performance bike computer! Setup is faster and easier than ever, battery life is now increased to 26 hours, mapping is improved and Off-Course Recalculation has been updated, just for starters. The Edge 840 also introduces many new features for the first time such as Solar Charging, Multi-Band GNSS, Targeted Adaptive Coaching, Power Guide, ClimPro Ascent Planner and lots more. It also carries several features the Edge 540 doesn’t, most notably a touchscreen display, on-device course detection and 32 GB of storage.


Garmin Edge 840 vs. 540

The Edge 840 carries all features from the Edge 540 but adds:

  • A responsive touchscreen and button control
  • Address Search
  • On-device course detection
  • 32 GB of storage vs. 16 GB
  • A sleek all black look
  • 2 Preloaded Map regions: NA (USA / Canada / Alaska / Central America) | EU (Central / West)


NEW Features

Solar Charging
Power Glass solar charging lens on Edge 840 solar models extends battery life and gives you up to 32 hours of demanding use or up to 60 hours in battery saver mode.

Multi-Band GNSS
Find your way in the most challenging environments with the multi-band GNSS technology, which provides enhanced positioning accuracy.

Targeted Adaptive Coaching
View daily suggested workouts and training prompts on screen: get personalized coaching that adapts based on your current training load, recovery, and upcoming events.

Power Guide
Manage your efforts with the power guide feature, which recommends power targets throughout a course.

Real-Time Stamina
Get stamina feature insights while you ride so you can keep an eye on how much longer you can really push it.

Cycling Ability
Classify your strengths as a cyclist, and compare your cycling ability to the demands of a specific course so you can focus your training and improvement in the right areas.

ClimPro Ascent Planner
See remaining ascent and grade on your Garmin Edge 840 when climbing so you can gauge your effort with the ClimPro ascent Planner, now available on every ride.



Improved Setup
The Edge 840 features a simplified setup and streamlined interface make it quick and easy to access the information, course and tools you need and even adjust data fields right from the Edge device or from your paired compatible smartphone.

Battery Life
Ride faster, charge less. Non-solar models get up to 26 hours of battery life even in demanding use plus up to 42 hours in battery saver mode.

Updated Mapping
Ride like a local, whatever your bike type, with improved ride type-specific maps that highlight popular roads and trails plus searchable points of interest. Swap maps for other regions at no charge using Garmin Express.

Off-Course Recalculation
Feel free to pause route guidance and off-course notifications while you go off-course to explore. When you’re ready to get back on track, Edge will show you the way.

Incident Detection
Automatically send a message with your location to emergency contacts after an on- or off-road incident to get help when you need it most.


  • Wireless protocol: ANT+, Bluetooth SMART and Wi-Fi
  • Physical dimensions: 2.3" x 3.4" x 0.8" (57.8 x 85.1 x 19.6 mm)
  • Display size: 2.6" (66 mm) diagonal
  • Display resolution: 246 x 322 pixels
  • Weight: 84.8 grams
  • Storage: 32 GB
  • Battery: Rechargeable lithium-ion
  • Battery life: Up to 26 hours
  • Water rating: IPX7

In the Box

  • ​Edge 840 Cycling Computer
  • Speed and Cadence Sensor 2 (Bundle version only)
  • HRM-Dual monitor (Bundle version only)
  • Mounts (standard and out-front)
  • USB cable
  • Tether
  • Documentation

Common Questions and Answers

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