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Garmin Edge® 840 GPS Cycling Computer
Compact GPS cycling computer with 2.6-inch touchscreen + button controls, 26-hour battery life, solar option available, multi-band GNSS, adaptive coaching, ClimbPro, power guide, preloaded maps, Varia compatible. $449.99.
Our Take: The Edge 840 is the battery life champion. At 26 hours in demanding use — and up to 42+ hours with the Solar model — it outlasts every other compact Edge by a wide margin. The newer x50-generation models (Edge 550 and 850) traded battery for a brighter screen: they last just 12 hours with their vivid transmissive LCDs. If you ride long, ride often, or hate charging, the 840 is the obvious choice. It’s also the lightest (85g) and most compact, the only one with a solar option, and at $449.99, it’s the least expensive model in this comparison. The 840 has both a touchscreen and 7 physical buttons, preloaded maps, multi-band GNSS, ClimbPro, power guide, stamina insights, and a deep training feature set that covers everything most cyclists need. What you give up vs. the newer models: the 840’s 2.6-inch transflective display (246×322) is noticeably dimmer and lower resolution than the 2.7-inch transmissive LCDs on the Edge 550 and Edge 850 (420×600, 1,000 nits). You also miss the x50-generation software: Cycling Coach plans, Smart Fueling alerts, 5Hz GPS, Trailforks with Forksight, weather radar overlays, GroupRide data, enduro/downhill profiles, gear ratio analysis, and road hazard alerts. If screen quality and those modern features matter more than battery, step up to the Edge 850 at $599.99 (same touch + buttons, speaker, Garmin Pay) or the Edge 1050 at $699.99 (3.5″ screen, 20h battery). But for riders who prioritize battery life, light weight, proven reliability, and value, the Edge 840 remains the smart buy.
Why you’d choose this cycling computer
- Up to 26 hours in the most demanding use case (sensors, navigation, full functionality) and up to 42 hours in battery saver mode. That’s more than double the Edge 550 and 850 (12 hours each) and longer than many flagship competitors. Charge less, ride more.
- The Edge 840 Solar adds Garmin’s PowerGlass solar charging layer. In bright outdoor conditions, it extends battery life to 32–42+ hours. In battery saver mode with solar, it can exceed 60 hours. No other current-gen compact Edge offers solar. The ultimate choice for ultra-endurance.
- Both a responsive touchscreen and 7 physical buttons. Pan and zoom maps via touch in fair weather. Switch to buttons in rain, mud, cold, or with thick gloves. The Edge 850 also has this combo, but the Edge 550 is buttons-only and the Edge 1050 is touchscreen-only.
- At 85g and 57.8×85.1×19.6 mm, the Edge 840 is the lightest mid-tier Edge. The 550 and 850 weigh ~110–112g, and the 1050 is 161g. For weight-conscious riders and clean cockpit aesthetics, the 840 is the smallest and lightest option with a touchscreen.
- Multi-band GNSS (GPS, GLONASS, Galileo) provides enhanced positioning accuracy in challenging environments — dense tree cover, urban canyons, and mountainous terrain. The same satellite technology as the newer x50-generation models.
- ClimbPro Ascent Planner shows remaining ascent and grade on every ride — no course required. Power Guide recommends power targets throughout a course based on your ability and the terrain. Stamina insights show how much energy you have left to push. All when paired with a compatible power meter.
- Daily suggested workouts, targeted adaptive coaching, cycling ability classification, training load and recovery tracking, VO2 max, FTP, heat and altitude acclimation. The Edge 840 has a deep training feature set — just without the x50-generation additions like Cycling Coach plans and Smart Fueling.
- The Edge 840 is $50 less than the Edge 550, $150 less than the Edge 850, and $250 less than the Edge 1050. With a touchscreen, 26-hour battery, multi-band GNSS, preloaded maps, and a proven training feature set, it offers tremendous value — especially if battery life matters more than the brightest screen.
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Who this computer is perfect for
- Long-distance and ultra-endurance riders who need 26+ hours on a single charge (or 42+ with solar).
- Multi-day tourers and bikepackers who can’t charge every night and want solar as an option.
- Riders who want touch + button control, proven training features, and preloaded maps at the lowest price.
- Weight-conscious cyclists who want the lightest (85g) and most compact Edge with a touchscreen.
- Cyclists who prioritize reliability and value over having the absolute brightest screen.
You may prefer a different Edge if…
- You want the brightest screen at the best price (buttons only) → Edge 550 at $499.99
- You want the bright screen + touch + buttons + speaker + Garmin Pay → Edge 850 at $599.99
- You want the largest screen (3.5″) with 20-hour battery and every feature → Edge 1050 at $699.99
All Variants
| Model | MPN | UPC | MSRP |
|---|---|---|---|
| Edge 840 | 010-02695-00 | 753759299927 | $449.99 |
How the Edge 840 Compares
Focus or hover a row label for a plain-English definition.
| Feature |
Edge 840★ This Product
|
Edge 550Buttons Only
|
Edge 850New Gen Touch
|
Edge 1050Flagship
|
|---|---|---|---|---|
| Display Size?Screen diagonal measurement. | 2.6″ | 2.7″ | 2.7″ | 3.5″ |
| Display Type?Screen technology. | Transflective TFT | Transmissive LCD | Transmissive LCD | Transmissive LCD |
| Resolution?Pixel count. | 246×322 | 420×600 | 420×600 | 480×800 |
| Brightness?Peak screen brightness. | ~450 nits | 1,000 nits | 1,000 nits | 1,000 nits |
| Touchscreen?Touch-based input. | Yes | No | Yes | Yes |
| Physical Buttons?Hardware button controls. | Yes (7) | Yes (7) | Yes (7) | 3 only (power/start/lap) |
| Speaker / Bike Bell?Built-in speaker for audio. | No (beeper) | No (beeper) | Yes | Yes |
| Voice Turn Prompts?Spoken navigation cues. | No | No | Yes | Yes |
| Garmin Pay?Contactless payments. | No | No | Yes | Yes |
| Cycling Coach Plans?Free adaptive training plans. | No | Yes | Yes | Yes |
| Smart Fueling Alerts?Nutrition/hydration reminders. | No | Yes | Yes | Yes |
| On-Device Course Creator?Create routes on the device. | No | No | Yes | Yes |
| ClimbPro Ascent Planner?See remaining climbs and grades. | Yes | Yes | Yes | Yes |
| Power Guide?Power targets throughout a course. | Yes | Yes | Yes | Yes |
| Stamina Insights?How much energy is left to push. | Yes | Yes | Yes | Yes |
| Gear Ratio Analysis?Post-ride gear usage data. | No | Yes | Yes | Yes |
| GroupRide Data?Live comparison with riding group. | No | Yes | Yes | Yes |
| Feature |
Edge 840★ This Product
|
Edge 550Buttons Only
|
Edge 850New Gen Touch
|
Edge 1050Flagship
|
|---|---|---|---|---|
| Multi-Band GNSS?Multi-frequency satellite positioning. | Yes | Yes | Yes | Yes |
| 5Hz GPS Recording?5 samples/sec for descents. | No | Yes | Yes | Yes |
| Preloaded Maps?Built-in cycling maps. | Yes | Yes | Yes | Yes |
| Trailforks Integration?MTB trail maps built-in. | No | Yes | Yes | Yes |
| Forksight?Trail fork preview info. | No | Yes | Yes | Yes |
| Enduro / Downhill Profiles?MTB-specific ride profiles. | No | Yes | Yes | Yes |
| Timing Gates?Auto splits on segments. | No | Yes | Yes | Yes |
| Road Hazard Alerts?Warnings from fellow Garmin users. | No | Yes | Yes | Yes |
| Weather Radar Overlay?Live rain/wind on map. | No | Yes | Yes | Yes |
| Road Surface Type?Shows paved/unpaved on map. | No | Yes | Yes | Yes |
| Feature |
Edge 840★ This Product
|
Edge 550Buttons Only
|
Edge 850New Gen Touch
|
Edge 1050Flagship
|
|---|---|---|---|---|
| Battery — Demanding?Heavy use with nav + sensors. | 26 hrs | 12 hrs | 12 hrs | 20 hrs |
| Battery — Saver Mode?Reduced functionality for max life. | 42 hrs | 36 hrs | 36 hrs | 60 hrs |
| Solar Option?Solar charging available. | Yes | No | No | No |
| Dimensions?Physical size (W×H×D). | 57.8×85.1×19.6 mm | 54.6×92.2×16.8 mm | 54.6×92.2×16.8 mm | 60.2×118.5×16.3 mm |
| Weight?Device weight. | 85g (3.0 oz) | ~110g | 112g | 161g |
| Storage?Internal flash memory. | 32 GB | 32 GB | 64 GB | 64 GB |
| Charging?Port type. | USB-C | USB-C | USB-C | USB-C |
| Water Rating?Water resistance. | IPX7 | IPX7 | IPX7 | IPX7 |
| Connectivity?Wireless protocols. | ANT+, BLE, Wi-Fi | ANT+, BLE, Wi-Fi | ANT+, BLE, Wi-Fi | ANT+, BLE, Wi-Fi |
| Varia Radar/Camera?Compatible with Varia system. | Yes | Yes | Yes | Yes |
| Incident Detection?Auto crash alert to contacts. | Yes | Yes | Yes | Yes |
| LiveTrack?Real-time location sharing. | Yes | Yes | Yes | Yes |
| Electronic Shifting?Di2, eTap, AXS integration. | Yes | Yes | Yes | Yes |
| Price?MSRP. | $449.99 | $499.99 | $599.99 | $699.99 |
Where does the Edge 840 fit in the Garmin Edge lineup?
★ You Are Here — Edge 840
- $449.99
- Battery life champion. 2.6″ transflective touchscreen + 7 buttons, 26-hour battery (42h saver), solar option available, 85g, 32 GB. Proven training features: ClimbPro, power guide, stamina, adaptive coaching. Best for riders who value battery life and weight over the brightest screen.
- View on heartratemonitorsusa.com →
Bright Screen, No Touch — Edge 550
- $499.99
- Same brilliant 2.7″ transmissive LCD as the 850 and 1050. Button-only control. All x50-generation features: Cycling Coach, Smart Fueling, 5Hz GPS, Trailforks, weather radar, GroupRide. 12-hr battery, ~110g, 32 GB. $50 more than the 840 for a far better screen and modern features, but half the battery.
- View on heartratemonitorsusa.com →
Premium Compact — Edge 850
- $599.99
- Same bright 2.7″ screen as the 550, plus touchscreen + buttons, speaker with bike bell and voice prompts, Garmin Pay, on-device course creator, 64 GB. Everything from the flagship in a compact form. 12-hr battery, 112g. $150 more than the 840.
- View on heartratemonitorsusa.com →
Flagship — Edge 1050
- $699.99
- Garmin’s ultimate. 3.5″ display (480×800), 20-hour battery, speaker, Garmin Pay, 64 GB, every feature. Touchscreen only — no nav buttons. 161g. Best for riders who want the biggest screen and don’t mind charging more often than the 840.
- View on heartratemonitorsusa.com →
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Edge 840 — Frequently Asked Questions
Why would I buy the Edge 840 when the Edge 850 is newer?
Battery life. The Edge 840 delivers 26 hours of demanding use vs. 12 hours on the 850. That’s more than double. The 840 also has a solar option (840 Solar) that extends to 42+ hours. If you ride long distances, do multi-day tours, or simply hate charging frequently, the 840 is the better choice. The 850’s advantages are a brighter/sharper 2.7-inch transmissive LCD (vs. the 840’s 2.6-inch transflective), a speaker with bike bell and voice prompts, Garmin Pay, on-device course creation, Cycling Coach, Smart Fueling, 5Hz GPS, Trailforks, weather radar, and GroupRide. If those features matter more than battery life, the 850 at $599.99 is the upgrade.
Does the Edge 840 have a touchscreen?
Yes. The Edge 840 has both a touchscreen and 7 physical buttons. You can tap, swipe, and pan the map via touch, or use the buttons for everything. This combination works reliably in all weather conditions — touchscreen in dry weather, buttons in rain or with gloves.
What’s the difference between the Edge 840 and Edge 840 Solar?
The Edge 840 Solar adds Garmin’s PowerGlass solar charging layer to the display. In outdoor riding conditions, solar extends battery life from 26 hours to approximately 32–42 hours depending on sunlight intensity. In battery saver mode, solar can push the total to 60+ hours. The Solar model is slightly heavier (~89g vs ~85g). If you ride outdoors frequently and want maximum battery autonomy, the Solar is worth the premium.
How does the Edge 840 compare to the Edge 550?
The Edge 550 ($499.99) is a newer x50-generation model with a dramatically brighter 2.7-inch transmissive LCD (420×600, 1,000 nits) vs. the 840’s 2.6-inch transflective TFT (246×322). The 550 adds Cycling Coach, Smart Fueling, 5Hz GPS, Trailforks with Forksight, weather radar, GroupRide, and enduro/downhill profiles. The 840’s advantages: much better battery (26h vs. 12h), a touchscreen (the 550 is buttons-only), lighter weight (85g vs ~110g), and a solar option. The 840 costs $449.99 — $50 less.
What training features does the Edge 840 have?
VO2 max, training status, training load, training effect, recovery time, performance condition, FTP estimation, heat and altitude acclimation, stamina insights, power guide (recommends power targets throughout a course), cycling ability classification, daily suggested workouts, ClimbPro Ascent Planner, and structured workouts from Garmin Connect, TrainingPeaks, and other platforms. Most advanced training features require a compatible heart rate monitor and power meter.
What sensors and accessories are compatible?
The Edge 840 connects via ANT+ and Bluetooth LE to heart rate monitors, power meters, speed/cadence sensors, Shimano Di2 and SRAM eTap/AXS electronic shifting, smart trainers, Garmin Varia radar and camera systems, and Garmin Rally power meter pedals. Wi-Fi is built in. Compatible with Connect IQ for custom apps and data fields. InReach device compatibility for satellite communication.
What’s in the box?
Edge 840 GPS cycling computer, out-front bike mount, standard mount with rubber bands, tether, USB-C charging/data cable, and documentation. A sensor bundle version is also available that includes HRM-Dual heart rate monitor, speed sensor, and cadence sensor.
Need help choosing? Call us at 1-800-403-8285 or 215-259-2700. Our team is happy to help you find the right Garmin cycling computer.