Customer reviews from Garmin
Garmin - Edge 840 Solar 2.6" GPS Bike Computer - Black
Average customer rating
4.1
(117 Reviews)
Rating breakdown 117 reviews
5 Stars
63
4 Stars
23
3 Stars
16
2 Stars
8
1 Star
7
Customer Reviews for Garmin - Edge 840 Solar 2.6" GPS Bike Computer - Black
Customer Rating
4
Garmin Solar Computer
on September 5, 2025
Posted by: ricardo p
Garmin computer itself is great but I do not care so much for the solar feature of this computer. I don't feel it charges computer fast enough. Other than that the computer works great and user interface is easy to use. Also its very easy to connect other ant+ and bluetooth devices to be able to get all the data you could possibly need from your rides. Just wish the solar charged more while being used.
Written by a customer while visiting ExpertVoice.com
Customer Rating
5
Can’t recommend enough
on September 3, 2025
Posted by: Kevin89
Really enjoying all the features the 840 offers. Highly recommended
Written by a customer while visiting Garmin
Customer Rating
3
Faster than my 830
on August 18, 2025
Posted by: JET3
I bought this recently to replace a lost 830. Although it is faster (processing) I don't like it as much. Had a few glitches with it - get prompts that don't allow you to complete what you were doing and at least once, I ended up in a loop that took dozens of tried to get past and shut down the device to start over.
I hope I get used to it and come to like it as much as mt 830.
I hope I get used to it and come to like it as much as mt 830.
Written by a customer while visiting Garmin
Customer Rating
3
Solar benefit doesn’t outweigh darker screen
on August 15, 2025
Posted by: JSD1
I have had previous Edge models run out of juice on Century rides so solar seemed attractive, but I ride early morning/late afternoon a lot more than all day long and in fading light the screen is too dark. Lots of added features, but none that add huge value
Written by a customer while visiting Garmin
Customer Rating
2
Not Happy
on August 6, 2025
Posted by: Gior
I have been using the Garmin 840 for the past year and a half. I could say there are some good features in this bicycle computer. However, the screen is always hard to read. It's always kind of dark. It is not very clear. That is my only problem with this bicycle computer. One of the things is that if I make it where it's really bright, the battery does not last as much as advertised.
Written by a customer while visiting Garmin
Customer Rating
5
840 Solar
on July 29, 2025
Posted by: dlassiter
Replaced my Garmin 520, love the 840 solar. Battery life is excellent, especially w/solar technology. Still learning to navigate the screens love the touch screen it is awesome. This product is weel worth the money.
Written by a customer while visiting Garmin
Customer Rating
4
840 solar
on July 7, 2025
Posted by: Corey W
Overall a great computer but still glitchy. Grade and elevation are definitely Off. Sensor glitch, I had to do a hard reset and reconnect all the sensors.
Written by a customer while visiting Garmin
Customer Rating
5
Great upgrade for me
on June 28, 2025
Posted by: Adam74
I've used a garmin 820 for several years now and have been happy with it. But decided it was time to upgrade so after reading many reviews I went with the 840 solar. My rides are never too long but I thought the solar part would be a good back up in case I was out longer than usual. No issues so far and I'm happy with the purchase! Many thanks Garmin
Written by a customer while visiting Garmin