Garmin Edge 840, Compact GPS Cycling Computer with Touchscreen and Buttons, Targeted Adaptive Coaching, Advanced Navigation and More

Nice quality of life improvement having a set display of some basic information!

I was a bit concerned about buying the non-solar model, but this has plenty of battery life so we don’t have to be charging it every day while on the trails. It has lots of features — still learning them! Bought this to replace my eTrex 30 that had survived over 10 years of abuse. I enjoy the touchscreen option.

Admittedly I’m a Garmin fanboi. I’m fully invested into their ecosystem and I love the integrated metrics their devices provide, so I thought it was a no brainer to upgrade my Edge 530 to an Edge 840 Solar.

First, the good. The interface is great. It’s very intuitive and things are as you would expect. Configuring data screens on your phone vs on the Edge itself is SOO much easier.

Full time ClimbPro, without have a route loaded. This is good, but it seems to have the bug that DC Rainmaker and GPLlama and a whole host of other Youtubers has described. It will often start well in to a climb and just be off. I’ll be at a steep section and ClimbPro will show me at a mild section, and vice versa. Then I’ll crest the top and it will show there are still a couple hundred feet to go. I’m confident this will eventually get fixed, but until then it’s kind of just a gimmick, it used to be great when it worked.

Now for the Solar. I give Garmin a lot of credit for the innovations of adding solar, as far as I know, no one else is doing it and you can bet they are now looking at it. That said, it’s not worth the premium. I live in Colorado, we have bright sun all day long here. I did a 2hr ride at dusk at 5pm, had the Edge flat like Garmin suggests, got zero solar time. Ok, so it was encroaching on evening you say? Well, I did a 2.5hr ride at 11am, in bright full sun, I got 14min back. A couple days later I did a 2hr 1pm ride in bright full sun and got 9min back. Not only that, but the solar screen on the 840 is dimmer in contrast, so you have to run a lot more brightness to see it, which sucks the battery big time. The battery widget now shows you estimated time remaining as you change brightness.

Overall, is it a worthwhile upgrade over the 530, probably, but not the solar, go with the non-solar.

This is my first cycling computer and I absolutely love it. The screen size fits in tons of data, you can customize it to see the data you want, it syncs easily with my Fenix 7S Pro, and it works great with the sensors. I’ve used it for both outdoor rides and indoor rides on a bike trainer (Wahoo Kickr). For both activities, I’ve been beyond impressed. I love the touchscreen, the colors, and graphics. Highly recommend!

I bought the Edge 840 to replace my Edge 810, after the weather/water seal on the power button degraded. I’ve spent two weeks with Garmin Support trying to get the new unit operational. Support has no idea what they are doing. The 840 when first connected to Garmin Express needed to update its preinstalled maps of Europe and North America. Immediately upon trying to update an error message occurred. Support had me use Express as an administrator after removing and reinstalling Express. The 840 had 27.4GB of preinstalled files. Support was concerned as to what those files could be and had me upload zipped files of my Garmin folder. Support was sure that there were extraneous files preventing the updating of the maps. My return window with Amazon had closed. Support finally agreed to exchange my 840 for a new one. The new unit had the same 27.4GB of preinstalled files. The new 840 had the same error message and could not update its maps. Support wanted screen shots of my laptop’s memory, insisting the problem was with my computer or my ISP. After some research I realized my 840 had insufficient memory to update the installed maps. Going to “manage maps” in Express, I removed Europe and could update North America. I then removed North America and could update Europe. So, ins short, Garmin has produced a unit with 32GB of storage that cannot accommodate both of its 2023 maps for Europe and North America. Not a big deal as I can change the maps before traveling.

The big deal is that support didn’t know the size of the files preinstalled in the 840 and could not recommend the easy fix that i found on my own. Several weeks of emails, uploading of Garmin files for Support to review and, of course, a non-working 840 while I waited for a resolution that Support could not provide.

lo conecte a su cargador al recibirlo y después de 12 horas conectado nunca pasó del 70% al desconectar y volver a conectar la batería bajaba su carga a 50% y volvía a cargar lentamente sin subir del 70% lo devolví a las 24horas

I bought this as a replacement for my Garmin 510 which finally broke after 10 years. The 840 has a very good color screen. It has a touch screen as well as side buttons. It has all the functions of the 510 and then some. I only use the basic functions.

In order to see the screen in daylight on my bike, I have to turn the screen brightness all the way up. A downside to doing this is the battery then only lasts 3-4 rides. I’ve already had it die on me during a ride. The 510 used to last 12+ rides.

I rate it 3-4 stars because of needing to turn up the brightness which results in only a few rides being recorded before a recharge.