GarminEdge 840 GPS Computer(Return to Product Page)

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.

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

Positives: Compact to 830 much improved connectivity with iPhone. Screen sensitivity much improved. Climb pro is a huge plus. Battery life is much better. Combo of buttons and touch screen is very nice upgrade.

For the negatives/reason for 4stars: Lap time resets every hour. There is a numeral in the corner of the field that designates 1st ,2nd, etc hour. Took a while to figure that out despite calls to Garmin tech support.

Power drops to zeros while pedaling for 5 seconds or so. Makes overall power lower than actual. Garmin sending a replacement unit due to this issue.

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!!!

I use the 840 for both trainer rides and outdoor rides. Use of the touch screen required getting familiar but the capabilities of this unit are exceptional. Connection to all sensors is much more robust and satellite routing is spot on. Swiping / selecting profiles is quick and easy and available data screen choices exceeds previous versions.

I bought this computer to replace my 530 edge that died after 3 years. I'm a roadie riding 150-200 miles a week. I love this computer. It was way more features that I need or use but a great computer overall. Didn't think that I needed touch screen ... wrong! Glad I got that feature. Integrates perfectly with my Varia headlight and rear radar light.

I've had three or four previous versions. This is the first 800 series. Simply the best. Smooth functioning, great touch screen that works even in the rain. Great mapping capabilities. Solid product all around.

One, I just cannot emphasize enough on BTD sale offerings.

This operates very well in sunny and low-light conditions. There is a minor glare/reflection issue if you catch the sun right, but overall, 10/10. This is my first cycling computer and it synced up without any issue to my power meter. Customizing the screen layout for your specific needs is also super easy.

I came from a Wahoo ELEMNT Bolt v1 which is great, but suffered from poor elevation readings. Have a Garmin watch and wanted to try the Garmin cycling computers. The 840 is must better computer: Easy to use and customize, better accuracy, and touch screen! Would recommend this to anyone.

More intuitive than previous versions. Faster than previous versions. Still has the issue where the altimeter/elevation calculator does work in the rain. Navigation still a bit wonky, especially on re-routing. Sporadic connectivity with my Garmin headlight, sometimes it connects, sometimes it doesn't. All in all an upgrade, but Garmin still has some bugs to work out.

The new UI would take some time to get used to but I like added feature of workout suggestion and detours in one click. Overall I'm very pleased with upgrade.

I like every thing about my new 840. It's got so many features I initially had to turn some off or I'd be overloaded with too much data. It's quite an improvement from my 520+ which wasn't holding enough of a charge for long rides. i like the longer battery life and now find I only need to charge it after 3 or 4 rides. The only negative is that the buttons don't seem to engage after clicking them so sometimes I need to hit them more than once.

I use this for training, gravel riding and road riding. The touch screen, increased memory and battery life are major improvements and the screen setup is better although that could have been made to be updated via laptop rather than on the device. Unfortunately, there are still some maddening Garmin software quirks such as when device is sync'd to a laptop, it locks up and must be hard reset to to work again. it also maintains a menu system that can only be described as archaic.

It seems Garmin is finally getting better at managing devices as a whole. Settings from previous unit are applied like getting a new phone. The management of maps is much easier, but storage is still too limited. I do like the climb pro for all hills not just when you are on a route. I do not know if I would have bought one just for the sake of it, I liked my 830. But it was a few years old and the new units battery lasts so much longer. I never had issues with the touch screen only on the 830 but it is nice that this one has both touch screen and buttons.

I purchased this as on upgrade to the older 520 model. The 840 works really well and provides a lot of useful data while riding and post ride. Works well with my AXS Power Meter and nice to track both heart rate and power real time while riding. Only negative, this could be I have something set wrong, is that when connected to my Garmin headlight it would run the headlight on full power and drain the headlight battery in two hours. Not a huge issue for me. I disconnected the headlight and now it stays on daylight flash mode and last up to eight hours. Nice upgrade, solid GPS and works well with connected devices except maybe the headlight.

This computer has everything I need on the bike. gps is accurate and tracks everything. touch screen makes map easy to use and the buttons make it easy to operate on the bike. Battery also lasts enough for my needs.