The Edge 840 cycling computer offers targeted adaptive coaching when used with your compatible power meter and heart rate monitor. Get superior accuracy under dense tree cover or the urban canyon, thanks to multi-band GNSS technology. The Edge 840 helps you manage your efforts by providing power targets throughout a course plus stamina insights¹, so you know how much gas is left in the tank. The Edge 840 features button controls that work in any environment, and is matched with a responsive touchscreen so you can tap, pan and swipe on the fly. Whether you’re riding road, trail, gravel or indoor, you can benefit from insights and daily suggested workouts² that will help you understand your strengths and weaknesses and prepare for upcoming races or personal milestones.
NEW Features on Edge 840 (vs Edge 830)
Find your way in the most challenging environments with 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 adapts¹ based on your current training load, recovery, and upcoming events.
Manage your efforts with the power guide feature, which recommends power targets throughout a course¹.
Get stamina¹ feature insights while you ride so you can keep an eye on how much longer you can really push it.
CYCLING ABILITY AND COURSE DEMANDS
Classify your strengths as a cyclist, and compare your cycling ability¹ to the demands of a specific course so you can focus your training and improvement in the right areas.
CLIMBPRO ASCENT PLANNER
See remaining ascent and grade when climbing so you can gauge your effort with the ClimbPro ascent planner, now available on every ride — no course required; view on your Edge device and in the Garmin Connect™ app on your smartphone for ride planning.
The Edge 840 cycling computer gets up to 26 hours of battery life in intense mode and up to 42 hours using battery saver mode4
Simplified setup and a streamlined interface make it quick and easy to access the information, courses and tools you need and even adjust data fields right from the Edge device or from your paired compatible smartphone.
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™.
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.
Automatically send a message with your location³ to emergency contacts after an on- or off-road incident to get help when you need it most.
PLUS, Same great features as previous models:
Evaluate your performance indicators to see if you’re training productively¹.
HEAT AND ALTITUDE ACCLIMATION
See how your body is holding up with heat and altitude acclimation¹.
Check each other’s location with GroupTrack — and track up to 50 riders at once².
Get routing suited to your ride, whether you’re on mountain, gravel or road.
TRENDLINE™ POPULARITY ROUTING
Your Edge finds the best route — choosing from roads (and trails) most traveled.
Select a race distance and time goal, then receive daily suggested workouts.
GARMIN CYCLE MAP
Ride with preloaded maps that include worldwide MTB trail data from Trailforks.
Advanced cycling metrics give insight on performance from variable conditions¹.
Track mountain biking metrics such as jump count, jump distance and hang time.
GRIT® AND FLOW™ METRICS
Stay on track with turn-by-turn directions and alerts.
BACK TO START
Get back on track — or back to start — if you’re lost or want to go home early.
NUTRITION AND HYDRATION ALERTS
Stay fueled on a ride with notifications when it’s time to hydrate or eat.
While you ride, get stamina insights¹ so you can keep an eye on how much you have left in the tank.
COMPATIBILITY WITH VARIA™ DEVICES
Pair your Edge device with your Varia rearview radar and smart lights to see and be seen.
This feature sends a message with your location² to emergency contacts after an on- or off-road incident.
Loved ones can follow your location, when paired with your compatible smartphone.
A PIN-protected alarm notifies via your compatible smartphone if your bike is moved.
INREACH® DEVICE COMPATIBILITY
Stay in touch wherever you ride by pairing with your compatible inReach device³.
Receive texts and alerts on your Edge cycling computer, when paired with your compatible smartphone.
SMART TRAINER COMPATIBILITY
This Edge can pair with an indoor trainer to track your home rides.
Connect to your eBike that’s compatible with ANT+® technology or SHIMANO STEPS.
CONNECT IQ™ STORE
Download custom data fields, and get apps and widgets from our Connect IQ Store smartphone app.
Message the pack if you get separated, when paired with your compatible smartphone.
¹ When paired with compatible sensors
²When paired with your compatible smartphone. For safety and tracking feature requirements and limitations, see Garmin.com/safety.
³Active satellite subscription required. Some jurisdictions regulate or prohibit the use of satellite communication devices. It is the responsibility of the user to know and follow all applicable laws in the jurisdictions where the device is intended to be used.
4Battery life may vary depending on usage. Assumes 75,000 lux conditions during daytime rides