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Running is more than just exercise — it’s a performance. And Forerunner 645 has the tools to help you put on an outstanding show every time you lace up your shoes. Featuring contactless payments that let you buy what you need while on the go — plus advanced running dynamics and performance monitoring tools — this GPS running watch is the instrument you need to refine the performance.
- Garmin Pay™ contactless payment solution¹ lets you make convenient payments with your watch, so you can leave your cash and cards at home
Provides advanced running dynamics², including ground contact time balance, stride length, vertical ratio and more
Uses wrist-based heart rate³ to offer performance monitoring features, including evaluating your current training status
Connected features4 include smart notifications, automatic uploads to Garmin Connect™ and the ability for others to track your runs with the LiveTrack feature
Customize with free watch faces, apps and more from our Connect IQ™ store
Battery life5: up to 7 days in smartwatch mode; 14 hours in GPS mode