UNLEASH YOUR FULL POTENTIAL
Improve every day with the Edge® 840 bike computer featuring both touchscreen and button controls. Innovative features help you manage your power and energy efficiently, and adaptive coaching gives you the perfect support for your next race.

LONG BATTERY LIFE
The Edge® 840 bike computer offers up to 26 hours of battery life in GPS mode and up to 42 hours in battery saver mode – enough power for multi-day adventures.

ADAPTIVE COACHING
Get daily workout suggestions and training instructions displayed directly on your screen. Based on upcoming events, receive personalized coaching tailored to your current training load and recovery status.

MULTI-BAND GNSS
Multi-frequency reception from global satellite systems (GPS, GLONASS, GALILEO) allows for highly accurate route tracking – even in narrow mountain valleys or urban canyons.

CLIMBPRO FEATURE
Use the proven ClimbPro feature even without a preloaded route. Get real-time data on upcoming climbs with gradient, remaining distance, and elevation – helping you manage your effort effectively.

CYCLING ABILITY & COURSE DEMANDS
Compare your cycling ability to the demands of a specific course, helping you anticipate what's ahead.

POWER GUIDE
The Power Guide helps you optimize your power output based on the route and its elevation profile, enabling you to plan the ideal pacing strategy.

TRAINING STATUS
Analyze your performance metrics to see whether your training is effective and improving your fitness.

HEAT & ALTITUDE ACCLIMATION
Monitor how your body adapts to changing conditions like heat or altitude.

GROUPTRACK FUNCTION
Track up to 50 friends on your screen at the same time with GroupTrack – ideal for group rides.

DETAILED TOUR MAPS
Optimized maps highlight popular roads and trails and display useful POIs along your route.

TRENDLINE™ POPULARITY ROUTING
Edge uses billions of kilometers of ride data to find the best and most popular routes for your activity.

RACE TARGETS
Choose a race distance and target time. Daily training suggestions help you prepare effectively.

PRELOADED BIKE MAP
Use preloaded maps for your tours, including global MTB trail data from Trailforks.

CYCLING DYNAMICS
Advanced cycling metrics provide insights into your performance under varying conditions.

MTB DYNAMICS
Jump metrics and downhill data help you analyze your mountain bike rides in detail.

GRIT® & FLOW™ METRICS
Grit measures the difficulty of the trail, while Flow reflects how smoothly you ride. Use this data to improve your performance.

TURN-BY-TURN DIRECTIONS
Stay on track with reliable turn-by-turn navigation and alerts – even on unfamiliar routes.

BACK TO START
Got lost or want to return early? Use the TracBack® feature to navigate back to your starting point.

NUTRITION & HYDRATION REMINDERS
Receive reminders to eat or drink during your ride to maintain your energy levels.

STAMINA REMAINING ENERGY
Track your performance with real-time Stamina data and monitor how much energy you have left – so you can avoid early fatigue.

VARIA™ COMPATIBILITY
Pair your Edge with the Varia radar and smart lights to detect traffic early and stay visible.

INCIDENT DETECTION
If an incident is detected, a message with your location is automatically sent to emergency contacts.

LIVETRACK FUNCTION
Your loved ones can follow your location in real time when your Edge is paired with a compatible smartphone.

BIKE ALARM
A PIN-protected alarm will alert your smartphone if your bike is moved while unattended.

INREACH® COMPATIBLE
Stay connected even without mobile reception by pairing with a compatible inReach satellite communicator.

SMART NOTIFICATIONS
Receive messages and alerts directly on your Edge device when paired with your smartphone.

SMART TRAINER COMPATIBILITY
Pair your Edge with an indoor trainer to record and analyze your home workouts.

E-BIKE COMPATIBILITY
Connect to your eBike if it supports ANT+® or SHIMANO STEPS to display key data on the Edge.

CONNECT IQ™ STORE
Download custom data fields, apps, and widgets from the Connect IQ app.

GROUP MESSAGING
Send messages to your fellow riders during a ride – handy if someone gets lost. Requires smartphone pairing.

TECHNICAL SPECIFICATIONS
Dimensions: 57.8 x 85.1 x 19.6 mm (2.3″ x 3.4″ x 0.8″)
Display Size: 66 mm (2.6″) diagonal
Display Resolution: 246 x 322 pixels
Weight: 84.8 g
Water Rating: IPX7
Battery: Rechargeable lithium-ion
Battery Life: Up to 26 hours
Preloaded Maps: Garmin Cycle Map
Memory: 32 GB
Waypoints: 200
Routes: 100
Activity Storage: Up to 200 hours
Connectivity: Bluetooth®, ANT+®, Wi-Fi®
Smartphone Compatibility: iPhone®, Android™

IN THE BOX
Edge® 840 bike computer
Mounts (standard and aero)
USB-C cable
Tether
Documentation