INTRODUCE THE RIDER YOU ARE TODAY TO THE ONE YOU’LL BE TOMORROW

Improve every day with Edge 840, the touchscreen and button-controlled cycling computer with Garmin Coach training1 plans. It’s the optimal gear to prepare you for upcoming races or personal milestones.

TOUCHSCREEN OR BUTTON CONTROLS? THE CHOICE IS YOURS — THIS EDGE HAS BOTH

GET UP TO 42 HOURS OF BATTERY LIFE ON A SINGLE CHARGE IN BATTERY SAVER MODE

ENJOY SUPERIOR ACCURACY WITH MULTI-BAND GNSS TECHNOLOGY

GET STAMINA INSIGHTS1 WHILE YOU RIDE

PUSH YOUR PERFORMANCE WITH DAILY SUGGESTED WORKOUTS1

CYCLE LIKE A LOCAL WITH RIDE TYPE-SPECIFIC MAPS AND NAVIGATION

WHAT YOU’LL LOVE

EXTENDED BATTERY LIFE

The Edge 840 cycling computer gets up to 26 hours of battery life in intense mode and up to 42 hours using battery saver mode.

GARMIN COACH

Train for an event, achieve a milestone, or improve your fitness with Garmin Coach training plans for cyclists. Just set it up in the Garmin Connect™ app, then let Garmin Coach create personalized daily workouts to help you reach your goals. This includes Garmin Cycling Coach, which creates training plans that adapt based on your performance, recovery and more.

MULTI-BAND GNSS

Find your way with multi-band GNSS technology that provides enhanced positioning accuracy.

CLIMBPRO ASCENT PLANNER

See remaining ascent and grade when climbing so you can gauge your effort with ClimbPro, now available on every ride with no course necessary.

CYCLING ABILITY AND COURSE DEMANDS

Compare your cycling ability to the demands of a specific course and focus your training in the right areas, when paired with your compatible power meter and heart rate monitor.

POWER GUIDE

Manage your efforts with the power guide feature, which recommends power targets throughout a course, when paired with your compatible power meter.

CRUSH EVERY PART OF TRAINING

PREPARE


TRAINING STATUS

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.

GROUPRIDE FEATURE

Stay connected on group rides2 with in-ride messaging and live locations, and now — get incident detection alerts3; plus, add fun and competition with in-ride leaderboards for climbs and postride awards.

GROUPTRACK FEATURE

Check each other’s location with GroupTrack — and track up to 50 riders at once4.

RIDE-SPECIFIC ROUTING

Get routing suited to your ride, whether you’re on mountain, gravel or road.

ROAD SURFACE TYPE

See road surface type, including unpaved roads, on the map for more awareness while planning and riding.

TRENDLINE™ POPULARITY ROUTING

Your Edge finds the best route — choosing from roads (and trails) most traveled.

DAILY SUGGESTED WORKOUTS

For training guidance that takes you and your fitness level into account, get daily ride suggestions based on your current training load and VO2 max.

BIKE-SPECIFIC MAPPING

Ride with preloaded maps that include worldwide MTB trail data from Trailforks.

TRAIN AND PERFORM


CYCLING DYNAMICS

Advanced cycling metrics give insight on performance from variable conditions1.

MTB DYNAMICS

Track mountain biking metrics such as jump count, jump distance and hang time.

GRIT® AND FLOW METRICS

Grit rates the difficulty of a trail. Flow measures how smoothly you ride it.

TURN-BY-TURN DIRECTIONS

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.

STAMINA INSIGHTS

While you ride, get stamina insights1 so you can keep an eye on how much you have left in the tank.

CYCLING SAFETY AND AWARENESS


ROAD HAZARD ALERTS

Get alerts for road hazards reported by fellow cyclists, and contribute your own edit2.

COMPATIBILITY WITH VARIA DEVICES

Pair your Edge device with your Varia rearview radar and smart lights to see and be seen.

INCIDENT DETECTION

This feature sends a message with your location4 to emergency contacts after an on- or off-road incident.

LIVETRACK FEATURE

Loved ones can follow your location, when paired with your compatible smartphone.

BIKE ALARM

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 device4.

CONNECTIVITY


SMART NOTIFICATIONS

Receive texts and alerts on your Edge cycling computer, when paired with your compatible smartphone.

GARMIN SHARE

Easily follow the same course or workout with your friends. Share saved locations, courses and workouts with other nearby Garmin Share compatible devices.

SMART TRAINER COMPATIBILITY

This Edge can pair with an indoor trainer to track your home rides.

EBIKE COMPATIBILITY

Connect to your eBike that’s compatible with ANT+® technology.

CONNECT IQ STORE

Download custom data fields, and get apps and widgets from our Connect IQ Store smartphone app.

GROUP MESSAGING

Message the pack if you get separated, when paired with your compatible smartphone.

General
Dimension 2.3″ x 3.4″ x 0.8″ (57.8 x 85.1 x 19.6 mm)
Weight 84.8 g
Water rating IPX7
Touchscreen Yes
Display Type transflective TFT
Display Size 2.6″ (66 mm) diagonal
Display resolution 246 x 322 pixels
Color display Yes
Battery type rechargeable lithium-ion
Battery life up to 26 hours
Battery save mode Yes
In-ride power compatible (Power Mount and Garmin Charge battery pack) Yes
Maps & Memory
Ability to add maps Yes
Basemap Preloaded Garmin cycle map
Integrated TrailForks trail data Yes
External memory storage 32 GB (internal memory only)
Waypoints/favorites/locations 200
Navigation Routes 100 courses
History up to 200 hours
Sensors
GPS Yes
GLONASS Yes
Galileo Yes
Barometric altimeter Yes
Gyroscope Yes
Accelerometer Yes
Ambient light sensor Yes
Multi-band GNSS Yes
Magnetometer Yes
Daily Smart Features
Connectivity Bluetooth®, ANT+®, Wi-Fi®
Connect IQ™ (downloadable watch faces, data fields, widgets and apps) Yes
On-device Connect IQ™ Store Yes
Smart Notifications Yes
Text response/reject phone call with text (Android™ only) Yes
Weather forecasts Yes
Realtime settings sync with Garmin Connect™ mobile Yes
Controls smartphone music Yes
VIRB® Remote Yes
Smart trainer control Yes
Smartphone compatibility iPhone®, Android™
Garmin Share Yes
Safety and Tracking Features
Assistance Yes
LiveTrack Yes
GroupTrack Yes
Group Ride (Cycling) Yes
GroupRide competitions and awards Yes
Rider-to-rider messaging Yes
Incident Detection yes (includes off-road)
GroupRide incident detection Yes
Community generated hazards reporting Yes
Find My Edge® Yes
Bike alarm Yes
Weather alerts Yes
inReach® compatible Yes
Activity Tracking Features
Calories burned Yes
Intensity minutes Yes
Training, Planning and Analysis Features
Customizable data pages Yes
Downloadable training plans Yes
Daily workout suggestions yes (event specific)
Primary and secondary workout targets Yes
Auto Pause® automatic timer halt Yes
Interval training Yes
Advanced workouts Yes
Auto Lap® interval tracking feature Yes
Vo2 Max Yes
Training status – Cycling Yes
Training load – Cycling Yes
Training load focus – Cycling Yes
Real-time stamina – Cycling Yes
Cycling ability analysis Yes
Course demands analysis Yes
Training effect Yes
Recovery advisor Yes
Virtual Partner Yes
Race an Activity Yes
Segments Yes
Auto scroll Yes
Physio TrueUp Yes
Unified training status Yes
Outdoor Recreation
ClimbPro Ascent Planner – Cycling Yes
ClimbPro – Courses Yes
ClimbPro – Free Riding Yes
Cycling Features
Courses Yes
Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) Yes
FTP (Functional Threshold Power) Yes
MTB Dynamics Yes
Compatible with Varia™ radar (rear-facing radar) Yes
Compatible with Varia Radar Camera Yes
Compatible with Varia™ lights Yes
Compatible with Varia headlight camera Yes
Power meter compatible Yes
On-device course creator Yes
On-device location search Yes
Power guide Yes
TopoActive Maps – Cycling Yes
Trendline Popularity Routing – Cycling Yes
Popularity heatmap Yes
Cycling Dynamics compatible Yes
eBike Smart range routing Yes
Connectivity
Edge® remote Yes
Varia™ remote Yes
ANT+™ electronic shifting Yes
Shimano Di2 Synchro Shift integration Yes
Extended display (allows a Garmin watch to share data screens on Edge®) Yes

Device Only

  • ​Edge 840 cycling computer
  • Mounts (standard and out-front)
  • USB-C cable
  • Tether
  • Documentation

Weight 0.74 lbs

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