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Garmin Edge 840 GPS Computer

GarminEdge 840 GPS Computer(Return to Product Page)

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(46 customer reviews)
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User submitted reviews

Review by Huffdawg1

Reviewed 12/21/2023
by Huffdawg1
Cycling Enthusiast
Fort Mill, SC
Overall Rating
Works well and provides a lot of useful data!

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.

Thank you for your feedback.

Review by Gerry44

Reviewed 9/13/2025
by Gerry44
SFBay Area
Overall Rating
Great cycling computer!

Big upgrade from my 10 year old Garmin computer. Easy to use, nice display and long lasting battery,

Thank you for your feedback.

Review by Magnus

Reviewed 8/25/2025
by Magnus
Cycling Enthusiast
Central Oregon
Overall Rating
An Exceptional Ride Companion

The Garmin Edge 840 excels in ride statistics, real time GPS/ride planning, and training tips for riders seeking to improve their skills

Thank you for your feedback.

Review by Anonymous

Reviewed 10/9/2024
by Anonymous
Cycling Enthusiast
Overall Rating
everything I need

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.

Thank you for your feedback.

Review by Jeff

Reviewed 7/31/2025
by Jeff
sf bay area
Overall Rating
Super good display with plenty features

Super high resolution screen and every possible metric to view. Also, really like the ability to customize a screen to the size and the amount of data that you wish to view as your riding.

Thank you for your feedback.

Review by Gerry44

Reviewed 8/1/2025
by Gerry44
SFBay Area
Overall Rating
Great cycling computer!

Big upgrade from my 10 year old Garmin computer. Easy to use, nice display and long lasting battery,

Thank you for your feedback.

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