GarminEdge 840 GPS Computer(Return to Product Page)

I did a lot of research before buying a "fancy" bike computer. For years I had a simple bike computer that gave me cadence, speed, etc. But, with my new bike, I wanted something with GPS and routing capability. Garmin 840 does all that and a ton more. When it comes to devices, I've been trained to believe that either devices are ultra customizable or they work well. This device somehow manages to do both! It has a massive amount of capabilities and customizations and yet it works flawlessly. For example, it automatically found my SRAM AXS components, bike radar and uploads routes from my phone or computer quite seamlessly.

Highly recommend this

Between my wife and I, we have owned every version of the Garmin 800 series GPS. When my 810 died I bought an 830 for the front of our tandem bike. When we bought a second tandem for another location, we bought 2 more 830s for the front and rear because my wife, the stroker, also likes to have one. When her 820 died recently after many years we bought her an 840. This one is probably more capable than its predecessors but more complex to program due to the confusing menu system. Not to mention the 3 extra buttons. We don't use most of the available features; just navigate courses given to us on group rides. This unit has way more capabilities than we need, but it does what we need with a nice bright color touch screen and beeps that are louder than previous models, which makes them easier for old ears to hear.

I had an Edge 530 for several years before getting this, and I loved it. Upgraded to the 840 because it was a good price and waiting to spend $200+ more on the 850 didn't seem worth it. This is definitely a good bike computer--it does everything you could ever want and lots of things you'll never want, or even be aware it can do. That said, I knocked a star compared to the simplicity of the 530 because this thing is beeping at me and throwing up ClimbPro screens constantly, and it had a run where it wouldn't wake up without me hard restarting it several times (that seems to have gone away for now). You can change the settings to make it beep less and turn off ClimbPro, yes, but it's so excessive out of the box that I have to point it out. And I liked ClimbPro a lot on the 530, but this thing considers EVERYTHING a climb. Literally, any incline it seems. I actually got lost on a long ride because the computer kept throwing up ClimbPro and the new hazard pop-ups over my navigation as I was going 20+ mph and I had to stop, figure out how to exit back to my nav, turn around, try to figure out where I was going in advance (because when I went back the screen popped back up again), etc. If you can't tell, it got in my head a little. BUT, with all that behind me, this thing is a darn good computer.

The Edge 840 is a really good GPS computer. I purchased this after my Wahoo Roam started being unreliable. The detail and capabilities of the Edge are superior to the Wahoo. I do most of my riding solo and the LiveTrack on the Edge provides much more detail than the tracking on the Wahoo.

The one negative I can think of is that the setup and menus on the Edge and the Garmin Connect app are WAY to complex. It seems like any sort of configuration change on the Edge is buried three layers down in the system menu.

I purchased this to help train for a 100 mile MTB race. I have used it on gravel and road rides so far. I was able to easily connect with a heart rate monitor. The owners manual was of limited help in setting up. Mostly relied on U tube videos to set up. I am pleased with this GPS but since I do not understand and alot of the functions and fields , I am sure I am not gaining all that it has to offer. I am 63 with 8 years of college but I own a flip phone and am technology challenged.

You're a cyclist, but not a psycho cyclist. This thing is great, so much data. Great ability to change the screens. I can't imagine wanting more- either data or ease of use.

I contemplated the Wahoo, but being a boater with extensive experience with garmin customer service, I quite frankly had to stay loyal to the brand. They have always been there for me when I have had issues.

Dove fully into the Garmin ecosystem. I utilize their Rally power meter and this pairs so well with it. Great to have for navigation, you can create routes on the Garmin Connect website and seamlessly upload it to the Edge. I also love the data it provides with my Rally power meter. Great piece of technology for any serious cyclist. The touchscreen capabilities along with buttons make the 840 a better choice over the 540...plus more storage on the 840. It's a little more expensive, but you get what you pay for. It's worth it. Fantastic computer!

Bought to replace a Garmin 830 which had developed a hard fault. Not user friendly. Only reason I didn't return it was that using the app I was able to transfer most of what I needed from my old Garmin. Even now, out riding the screen will suddenly change without me touching anything.

Even more infuriating, I recently did a software update, and it completely changed my personal settings. Have used Garmin bike computers for years. This will be my last one.

Easier to upload routes, stops recording speed and duration of rides when stopped

Bought this to replace my current Stages unit as they are no longer in business and no support is provided.

I decided to stop the frustration and decided on going with the Garmin Edge 840 after reading reviews. Being a GOLD member with Bike tires got me a Great Price. I also wanted to go with a well established company that will still be around in the future years. A bit pricey but I wanted a product and company that provided excellent support now and in the future. There is a learning curve but you get used to it the more you use it. The graphics are great and I love the touch screen. Having backup buttons that are easy to use with gloves on is great too. Having the newest USB connector was a welcome touch. I use it on my MTB and Road bike. Works great on the MTB I have, Sram blue tooth shifting and can even tell what gear I'm in. Maybe a little over kill, but its fun to use. It boots up fast and recognizes all my sensors, cardio, cadence, vario tail light/radar, spreed,etc........ It does so many things well, especially GPS!

I just don't care for all the notifications and beeping. My Wahoo was easier to use and was more simple. I may adjust to the Garmin and if not, I'll switch back to Wahoo.

This little unit gives me more information about my rides, and my body's reaction to my rides, than I ever thought I needed. Reading it all while riding can be dangerous to your health, but viewing it later on your phone or PC, is informative and definitely safer. I especially like that the activity screens (pages?) can be individually created and modified by me, and I'm still modifying them for me after each ride. On the other hand, I'm still wondering about the "elevation" data, even after resetting manually, and the "calories" calculations that don't match my other devices. I'm still learning how the "navigation" features work, and how to follow the maps, but having a clear compass display is surprisingly helpful.

This unit replaced my Edge 830 that served me well for many miles and years. The increased battery life (40hrs) is critical to me since I ride many randonneuring events that include overnight and multi-day rides. I am a fan of the touchscreen on the 830, except when it rains! While I have not used this one in the rain yet, the ability to switch to the side buttons should be helpful. The screen and unit is slightly larger, but still fits nicely between my aero bars. The screen and software upgrades are great, especially the climbing page and workout pages.

Lastly, when connected to my Garmin Connect I was able to transfer all my existing rider information and profiles automatically and the whole set-up process took less that 2 mins and I was ready to ride!

Product arrived safe and well packaged! Very fast shipping!

I had always used Garmin, but 16 months ago I went with the new Hammerhead Karoo 2. Well that unit simply died. Hammerhead customer service sucks. So I did some research and decided on the new Garmin 840 that easily integrated with the new Shimano Di2 with no additional widgets. I hate the whole set-up process with new computers, but I dinged on a couple youtube videos and this thing was a breeze. It ain't cheap but it is an awesome computer.

I Ilove the Garmin 840! It's great that it is totally wireless, requires no wires, wheel magnets, or sensors. It is very accurate also. It has a lot of features, most of which I haven't tried yet. You can set the data screen to show what you want to see. You can also add things like speed and trip distance to the map screen, which I did.

Light weight, decent battery life, pairs up easily w powermeter and Di2. I haven't had any problem seeing the display in bright sun. The GUI leaves something to be desired; it's not super intuitive, so figure on a learning curve if this is your first Garmin.

Thanks B.T.D was able to get it for sales price you guys rock!!!

Thanks B.T.D was able to get it for sales price you guys rock!!!

It's one of the highest ranked for good reason. Can't go wrong with this. Smallish size but big enough too.