COROS Bike Speed Sensor vs Garmin Forerunner 55
Side-by-side on the specs that matter, with category winners and an opinionated take to help you decide.
Choose between a dedicated cycling sensor for precise data or a versatile smartwatch for all-around activity tracking.
Pick COROS Bike Speed Sensor if you're a serious cyclist who wants exact speed and distance data for your existing watch or bike computer.
Pick Garmin Forerunner 55 if you want a comprehensive fitness watch that tracks runs, swims, daily health, and cycling with built-in GPS.
- —The Garmin is a full wearable with a screen and notifications, while the COROS is a tiny, single-purpose accessory.
- —The COROS sensor requires a compatible device like a watch or head unit to view its data.
- —The Forerunner 55 tracks heart rate and many sports automatically, but the COROS only measures bike speed.
Full specs
Ask anything — we'll answer with COROS Bike Speed Sensor and Garmin Forerunner 55 in mind.
Pindear may earn a commission when you buy through these links. Winners are determined by numeric spec comparisons only; non-numeric features (app quality, ecosystem, real-world feel) are covered in the verdict.