Garmin Edge 840

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)

MULTI-BAND GNSS

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.

POWER GUIDE

Manage your efforts with the power guide feature, which recommends power targets throughout a course¹.

REAL-TIME STAMINA

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.

IMPROVED Features:

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 mode⁴

SETUP

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.

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 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:

ADAPTIVE COACHING

View daily suggested workouts and training prompts on screen; get personalized coaching based on your event that adapts to your current training load and recovery¹.

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.

GROUPTRACK FEATURE

Check each other’s location with GroupTrack — and track up to 50 riders at once².

RIDE-SPECIFIC ROUTING

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.

EVENT 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.

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.

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 location² 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 device³.

SMART NOTIFICATIONS

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.

EBIKE COMPATIBILITY

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.

GROUP MESSAGING

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