Improved your performance every ride with Garmin 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. 

SPECIFICATIONS

IN THE BOX

• Bike computer
• Mounts (standard and out-front)
• Tether
• Documentation

Top Features

EXTENDED BATTERY LIFE

The Edge® 840 bike computer provides up to 26 hours of battery life in intense mode and up to 42 hours when battery saver mode is engaged.

ADAPTIVE COACHING

View 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 GNSS

Wherever in the world you are, you can be sure of your location thanks to multi-band GNSS technology that provides enhanced positioning accuracy.

CLIMBPRO ASCENT PLANNER

ClimbPro gives you the ability to keep track of a climb gradient and the remaining distance, so you can better gauge your effort. 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 a 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 a compatible power meter.

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 body acclimation¹.

GROUPTRACK FEATURE

Check each other's location with GroupTrack - and track up to 50 riders at once³.

RIDE-SPECIFIC ROUTING

Get routing suited to your ride, whether that's on a mountain, on gravel or on asphalt.

TRENDLINE™ POPULARITY ROUTING

Your Edge bike computer finds the best route - choosing the roads and trails most travelled.

EVENTS GOALS

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.

TRAIN & PERFORM

CYCLING DYNAMICS

Advanced cycling metrics give insight into your performance from variable conditions¹.

MTB DYNAMICS

Track mountain bike 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 live navigation and alerts.

BACK TO START

Get back on track or return to the start if you're lost or want to head home early.

NUTRITION AND HYDRATION ALERTS

Stay fuelled during a ride with notifications when it's time to hydrate or eat.

STAMINA INSIGHTS

Get stamina insights while you ride, so you can keep an eye on how much you have left in the tank.

CYCLING SAFETY AND AWARENESS

COMPATIBILITY WITH VARIA™ DEVICES

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

INCIDENT DETECTION

This feature sends a message with your location³ to emergency contacts after an on/off-road incident.

LIVETRACK FEATURE

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

BIKE ALARM

A PIN-protected alarm notifies you 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 computer when paired with your compatible smartphone.

SMART TRAINER COMPATIBILITY

The Edge bike computer can pair with an indoor trainer to track your indoor rides.

EBIKE COMPATIBILITY

Connect to any eBike that's compatible with ANT+® technology or SHIMANO STEPS.

CONNECT IQ STORE

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

GROUP MESSAGING

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

¹When paired with compatible sensors.

²When paired with a compatible smartphone. For safety and tracking feature requirements and limitations, see Garmin.com/safety

³Satellite subscription required. Some jurisdictions regulate 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 for use.