Description
- Touchscreen or button controls? The choice is yours — this edge has both
- Enjoy superior accuracy with multi-band gnss technology
- Manage your efforts with the power guide feature, which recommends power targets throughout a course, when paired with your compatible power meter
- Get stamina insights while you ride
- Push your performance with daily suggested workouts
- Cycle like a local with ride type-specific maps and navigation
- Stay fueled on a ride with notifications when it’s time to hydrate or eat
- Edge 840 cycling computer gets up to 26 hours of battery life in intense mode and up to 42 hours using battery saver mode
- Smartphone compatibility with iPhone® and Android™
- Display Size: 2.6" (66 mm) diagonal
- Battery type: rechargeable lithium-ion
- Battery life: up to 32 hours
- Display resolution: 246 x 322 pixels
- Dimensions: 2.3" x 3.4" x 0.8" (57.8 x 85.1 x 19.6 mm)
- Weight: 3 oz (84.8 g)
- External memory storage: 32 GB
- Comes with: Edge 840 cycling computer, Mounts (standard and out-front), USB cable, Tether, and Documentation
Product Reviews
Review Snapshot
by PowerReviews
Most Liked Positive Review
The best Garmin Edge
I bought this 840 to replace my 530. I loved my 530, but my battery would die on my 100 mile Century rides. This started after I had paired it with the Garmin Rally XC200 pedals. I knew the 840 had a better battery and I was tempted to get the solar model. I'm happy to report that it was fine after ...
Most Liked Negative Review
Quirky
I've only had this a few weeks but I find it really quirky. To be more clear, it's as if it was designed by a team but no one on the team ever talked to anyone else on the team. The user interface is inconsistent - the menu icon pops up in different places as does the "check mark" and "X" for acce...
Reviewed by 139 customers
Love it so far!
Verified Buyer
Reviewed at
I just got the Edge 840 - so far I love it! It was easy to set up. I haven't even scratched the surface of what can be tracked but I am looking forward to learning g!
Edge 840 Review
Verified Buyer
Reviewed at
I upgraded from the Edge 830 about two weeks ago. Overall, very happy with my decision and the 840 has performed very well. The 840 is the same length a just a bit wider than my 830, I chose the non-solar version since battery life is never an issue for me. There are more side buttons on the 840 so you're not reliant on the touch screen although it does have one. Rain rides will be much less frustrating. The software is much better, new home screen with more info, took a bit to get use to but once you do you'll probably love it. GPS accuracy is better, a few minor glitches on my 79 mile race this weekend but the 840 quickly recovered and "found itself", big improvement over the 830 on the same course. Love having maps for Europe pre-loaded and easily switchable, once again way better than the 830. Numerous new features, look ahead on climbs even without a pre-loaded course, computed power plan for a race or pre-loaded course. The Garmin Connect app + all of my bluetooth devices easily paired with the 840. Basically the 840 addressed all of the issues I had with the 830 and added some really useful software upgrades. If you're looking to upgrade or just getting into racing I would highly recommend this unit.
Great bike bit of tech
Verified Buyer
Reviewed at
I've used a Fenix watch for years and this is very nice to see stats while on the bike. I love the tracking, live heart rate, and all other details on the screen. The climb pro works darn good as well.
Excellent bike computer
Verified Buyer
Comments about One / One Size
If you don't need the huge screen of the 1040 (or don't have the extended mount that it requires), get this. Bright display. Long battery life, even without solar charging. Tip: Get a silicone protective case.
It's just okay
Verified Buyer
Reviewed at
I have a Wahoo Elemnt that I like, but purchased the Edge 840 because it has the ability to read my Dexcom glucose monitor. So far I'm not impressed with the Edge. I find the user interface to be clunky and not very intuitive, the touch screen is also problematic. I'm disappointed, compared to the Wahoo the Wahoo wins hands down but I'll keep workting with the Edge because of the interface with my CGM.
All good
Verified Buyer
Reviewed at
It tracks my rides and appears to be extremely accurate. I don't use any of the training functions at this time as much of it is new to me. It was easy to pair with my phone and heart rate monitor. That said: the owners manual provided is basically worthless.
Awesome device 840
Verified Buyer
Reviewed at
I am a first time owner of the any Garmin product and I love this little thing. Very user friendly, love the touch screen, solar powered, so much info and now I never leave my house without it.
So far so excellent!
Verified Buyer
Reviewed at
So far, the 840 is proving to be an excellent bike computer. Setup using the Garmin Connect app on my phone was a doddle since I just transferred the settings from my 530. The new GUI is a great upgrade and is intuitive to use. I was hesitant about getting a bike computer with a touch screen, but so far the 840's touch screen has been brilliant, working perfectly in the rain. I haven't had to use the navigation features yet, but given how well my 530 navigated, I expect the 840 to work even better.
Does Everything
Verified Buyer
Reviewed at
A must have for every techie. Edge 840 does everything anyone could want in a bike computer. Easy to read touch screen, it even automatically uploads your workout.
Perfect for me
Verified Buyer
Reviewed at
The Garmin Edge 840 is my first cycling computer. Prior to this I was using Garmin wrist watches. This is so much better and much more capable. I look forward to using more and more of the capabilities of the device.