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Improve every day with Edge® 840, the touchscreen and button-controlled cycling computer with targeted adaptive coaching1. It’s the optimal gear to prepare you for upcoming races or personal milestones.
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.
Get up to 60 hours in battery saver mode or up to 32 hours in intense mode. Gain an extra 25 minutes per hour from solar charging in battery saver mode during daytime rides2.
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.
Find your way with multi-band GNSS technology that provides enhanced positioning accuracy.
See remaining ascent and grade when climbing so you can gauge your effort with ClimbPro, now available on every ride with no course necessary.
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.
Manage your efforts with the power guide feature, which recommends power targets throughout a course, when paired with your compatible power meter
Evaluate your performance indicators to see if you’re training productively1.
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 once3.
Get routing suited to your ride, whether you’re on mountain, gravel or road.
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.
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 rates the difficulty of a trail. Flow measures how smoothly you ride it.
Stay on track with turn-by-turn directions and alerts.
Get back on track — or back to start — if you’re lost or want to go home early.
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.
Pair your Edge device with your Varia rearview radar and smart lights to see and be seen.
This feature sends a message with your location3 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.
Stay in touch wherever you ride by pairing with your compatible inReach device4.
Receive texts and alerts on your Edge cycling computer, when paired with your compatible smartphone.
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.
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.
|In-ride power compatible (Power Mount and Garmin Charge Battery Pack)|
|Dimension||57.8 x 85.1 x 19.6 mm (2.3″ x 3.4″ x 0.8″)|
|Display Size||2.6″ (66 mm) diagonal|
|Display Resolution||246 x 322 pixels|
|Battery type||Rechargeable lithium-ion|
|Battery life||Up to 26 hours|
|Battery save mode|
Maps & memory
|Ability to add maps|
|Basemap||Preloaded Garmin cycle map|
|Storage and Power Capacity||32 GB|
|Navigation Routes||100 Courses|
|History||Up to 200 hours|
|Ambient light sensor|
Daily smart features
|Connectivity||Bluetooth®, ANT+®, Wi-Fi®|
|Connect IQ™ (downloadable watch faces, data fields, widgets and apps)|
|On-device Connect IQ™ Store|
|Text response/reject phone call with text (Android™ only)|
|Realtime settings sync with Garmin Connect™ mobile|
|Controls smartphone music|
|VIRB® camera remote|
|Smartphone compatibility||iPhone®, Android™|
Safety and tracking features
|Incident Detection||Yes (includes off-road)|
|Find My Edge®|
Activity tracking features
Training, planning and analysis features
|Downloadable training plans|
|Daily workout suggestions||Yes (event specific)|
|Primary and secondary workout targets|
|Training load focus|
|Cycling ability analysis|
|Course demands analysis|
|Race an activity|
|Trendline™ Popularity Routing|
|Unified training status|
|ClimbPro™ ascent planner|
|ClimbPro - Courses|
|ClimbPro - Free Riding|
|Garmin cycle map (routable cycling-specific street map)||Yes (multi-region)|
|Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)|
|On-device course creator|
|On-device location search|
|Cycling Dynamics compatible|
|Integrated TrailForks trail data|
|Power meter compatible|
|Compatible with Varia™ radar (rear-facing radar)|
|Compatible with Varia Radar Camera|
|Compatible with Varia™ lights|
|eBike Smart range routing|
|ANT+™ electronic shifting|
|Shimano Di2 Synchro Shift integration|
|Smart trainer control|
|Extended display (allows a Garmin watch to share data screens on Edge®)|