GPS bike computer
Better than your phone for navigation: bigger battery, brighter screen, weather-sealed, ANT+ for radar and heart rate.
A dedicated bike computer pays off the first time you ride past 4 hours, ride in pouring rain, or want to pair with rear radar and a heart rate strap. Garmin and Wahoo are the two real choices; Hammerhead Karoo is the dark horse with the best maps.
If you ride mostly in the city and never need turn-by-turn off route, your phone is fine. Pick a bike computer when navigation, training data, or radar/lights integration matters.
Where to buy
Two paths — match your spend to the bike. Quality picks last longer and protect resale; affordable picks get you riding safely today.
Quality picks
Affordable picks
Affiliate disclosure: some supplier links above are affiliate links and may earn us a small commission at no extra cost to you. It never affects which accessories we list or how we rank them.
Pro tips from our test team
- Buy ANT+ — it's the only way to pair with radar, power meters, and most heart rate straps.
- Komoot and RideWithGPS integrate with most modern head units and beat the stock route planners.
- Battery anxiety on long rides: bring a USB-C cable and a small power bank. All three majors charge on the move.