Customer Ratings & Reviews

The perfect size of all the bike computer. I can use it in my RB, Gravel and very safe for my MTB. Good map and it tracks every progress of your fitness journey.

I’ve been using the Garmin 840 for a while now and I’m really impressed. The size is perfect — compact yet easy to read while riding. It tracks power, heart rate, and other metrics with great accuracy. I’ve paired it with my indoor setup and it works flawlessly. Garmin continues to be a brand I trust for performance and reliability. Highly recommended for serious cyclists!

Love this bike computer, the touchscreen makes life so much easier on rides. And it's amazing having everything I need to know right in front of me. I even love the "drink water" prompts as a simple reminder.

Great device, perfect size. Fully customizable. Limitless possibilities. Thoroughly enjoyed. I especially like how the 800 series gives you both the buttons from the 5 series and touchscreen from the 10 series so you truly get the best of both worlds.

Works amazing! Battery lasts super long even though it's not solar and there so much to do in the app with training AIDS. Highly recommend

I got it as a gift for my son who is a cyclist, he loves it!

Enjoy the interface, easy to use and links well with Strava, Apple Watch, heart monitor and SRAM gearing. Nice to have buttons as well as touchscreen.

Nice compact computer it synchronizes with all your garmin equipment and bike sensors.

Love the item! Exactly what was advertised. Flawless buying process when going into the store.

Awesome device. Upgraded from my Edge 830. Connects to all my sensors faster than the 830.

Quality product, price on point. Will refer this to colleagues.

Works great. Love it. Many features to train with.

Been riding for about 5 years now and jus bought this an it is great, it is easy to operate and the screen has excellent visibility.

Good improvement over the 530 that I previously owned. Wish the rerouting feature was better

Do not buy Garmin edge products here, I have had issues with my devices for months. I have exchanged my device for another and that has not fixed the problem, I'm on my fourth device in less than a year. Luckily I pay extra per year for their membership and have been able to exchange it for a new one because I would have been stuck with a bad device if I didn't. My first 3 were the 540s and the last one is the 840 and have had the same issue with them all. This is the only device I have to record while training so I heavily rely on it but its very disappointing that I lose workouts when my screen freezes mid workout or I have nothing to record with because the screen froze and have to wait for it to die so I can plug it back in, let it charge, then be able to use it. I considered getting a Garmin watch to use for other exercises not included in the 840s but as disappointed as I am with these I don't know if it'll be worth the trouble. These devices clearly have an issue that has not been resolved and is very disappointing with a brand as large as Garmin

Great product. Highly recommend with Garmin HRM to get full insight.