Product Description:INTRODUCE THE RIDER YOU ARE TODAY TO THE ONE YOU’LL BE TOMORROW.Improve every day with
Edge® 840, the touchscreen and button-controlled bike computer with targeted adaptive coaching1. It’s the optimal gear to prepare you for upcoming races or personal milestones.

Touchscreen or button controls? The choice is yours — this Edge bike computer 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 to know how much longer you can crush it.

Push your performance with daily suggested workouts1.

Cycle like a local with ride type-specific maps and navigation.
TOP FEATURES
EXTENDED BATTERY LIFEThe Edge® 840 bike computer gets up to 26 hours of battery life in intense mode and up to 42 hours using battery saver mode.
ADAPTIVE COACHINGView daily suggested workouts and training prompts on screen; get personalised coaching based on your event that adapts to your current training load and recovery1.
MULTI-BAND GNSSFind your way with multi-band GNSS technology that provides enhanced positioning accuracy.
CLIMBPRO ASCENT PLANNERSee 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 DEMANDSCompare 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 GUIDEManage 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 TRAININGPREPARE
TRAINING STATUSEvaluate your performance indicators to see if you’re training productively1.
HEAT AND ALTITUDE ACCLIMATIONSee how your body is holding up with heat and altitude acclimation1.
GROUPTRACK FEATURECheck each other’s location with GroupTrack — and track up to 50 riders at once3.
RIDE-SPECIFIC ROUTINGGet routing suited to your ride, whether you’re on mountain, gravel or road.
TRENDLINE™ POPULARITY ROUTINGYour Edge bike computer finds the best route — choosing from roads (and trails) most travelled.
EVENT GOALSSelect a race distance and time goal, then receive daily suggested workouts.
GARMIN CYCLE MAPRide with preloaded maps that include worldwide MTB trail data from Trailforks.
TRAIN AND PERFORM
CYCLING DYNAMICSAdvanced cycling metrics give insight on performance from variable conditions1.
MTB DYNAMICSTrack mountain biking metrics such as jump count, jump distance and hang time.
GRIT® AND FLOW™ METRICSGrit rates the difficulty of a trail. Flow measures how smoothly you ride it.
TURN-BY-TURN DIRECTIONSStay on track with turn-by-turn directions and alerts.
BACK TO STARTGet back on track — or back to start — if you’re lost or want to go home early.
NUTRITION AND HYDRATION ALERTSStay fuelled on a ride with notifications when it’s time to hydrate or eat.
STAMINA INSIGHTSWhile you ride, get stamina insights1 so you can keep an eye on how much you have left in the tank.
CYCLING SAFETY AND AWARENESS
COMPATIBILITY WITH VARIA™ DEVICESPair your Edge bike computer with your Varia rearview radar and smart lights to see and be seen.
INCIDENT DETECTIONThis feature sends a message with your location3 to emergency contacts after an on- or off-road incident.
LIVETRACK FEATURELoved ones can follow your location, when paired with your compatible smartphone.
BIKE ALARMA PIN-protected alarm notifies via your compatible smartphone if your bike is moved.
INREACH® DEVICE COMPATIBILITYStay in touch wherever you ride by pairing with your compatible inReach device4.
CONNECTIVITY
SMART NOTIFICATIONSReceive texts and alerts on your Edge bike computer, when paired with your compatible smartphone.
SMART TRAINER COMPATIBILITYThis Edge bike computer can pair with an indoor trainer to track your home rides.
EBIKE COMPATIBILITYConnect to your eBike that’s compatible with ANT+® technology or SHIMANO STEPS.
CONNECT IQ™ STOREDownload custom data fields, and get apps and widgets from our Connect IQ Store smartphone app.
GROUP MESSAGINGMessage the pack if you get separated, when paired with your compatible smartphone.
- 1 When paired with compatible sensors.
- 2 When paired with your compatible smartphone. For safety and tracking feature requirements and limitations, see Garmin.com/safety.
- 3 Satellite subscription required. Some jurisdictions regulate or prohibit the use of satellite communication devices. It is your responsibility to know and follow all applicable laws in the jurisdictions where the device is intended to be used.