Garmin Edge 840 Solar GPS cycling computer
Introduce the rider you are today to the one you'll be tomorrow.
If you're serious about improving, the Garmin Edge 840 Solar is the kind of cycling computer that quietly gets to work alongside you.
Touchscreen and button-controlled, it pairs targeted adaptive coaching with solar charging technology, making it one of the most capable bits of cycling electronics and accessories you'll find at this level.
Whether you're building towards a sportive, a race, or simply want to stop guessing at your training, this is the computer that fills in the gaps.
Power Glass solar charging - fewer stops, more miles
Battery anxiety on long days in the saddle is a real thing. The Garmin Edge 840 Solar tackles it head-on: up to 32 hours in intense mode, and up to 60 hours in battery saver mode. Add solar charging on top: an extra 25 minutes per hour in battery saver mode under daytime conditions, and you've got a computer that's genuinely built for big days out.
Adaptive coaching that adapts
Paired with compatible sensors, the 840 Solar reads your current training load and recovery status, then suggests workouts accordingly. It shifts with you. Ideal if your week looks different every week, which, let's be honest, most people's do.
Multi-Bband GNSS - accurate where it counts
Multi-band GNSS technology means sharper positioning, even through tree cover, tight valleys, or urban stretches where a single-band signal starts to drift.
For UK riders who spend time on wooded trails or city commutes, that accuracy matters more than it might seem.
ClimbPro - know what's coming
ClimbPro shows remaining ascent and gradient as you climb, now available on every ride without needing a pre-loaded course. If you've ever blown up on a climb because you didn't pace it right, you'll know exactly why this is worth having.
Course demands & Power guide
Paired with a compatible power meter and heart rate monitor, the Garmin Edge 840 lets you compare your current cycling ability against the specific demands of a course, so your training targets what actually needs work.
The Power Guide feature then recommends power targets throughout a route, taking the guesswork out of pacing on race day.
In the box
- Bike computer (57.8 x 85.1 x 19.6 mm)
- Mounts (standard and out-front)
- USB-C cable
- Tether
- Documentation
For riders who want more from their training and more from their battery life, the Garmin Edge 840 Solar is worth a serious look.