Garmin Forerunner 645 Music Running Watch
Order before 3pm for same-day dispatch. Delivery in 1–3 business days.
- Official warranty
- Fast delivery
- 14-day returns
- Expert support
Warranty & returns
Every product comes with the official manufacturer warranty. Unused items can be returned within 14 days.
Product details
Onboard Music Meets Everyday Running Smarts
The Forerunner 645 Music pairs a stainless steel bezel with Corning Gorilla Glass 3 over its 1.2" sunlight-visible MIP display, built for runners who want offline music without a phone. Up to 500 songs store directly on the watch for phone-free training runs.
GPS and GLONASS positioning support running dynamics, training status monitoring, and performance metrics, while Garmin Pay contactless payments and wrist-based heart rate keep everyday convenience close at hand. Bluetooth, ANT+, and Wi-Fi keep it connected for syncing and updates.
At 42.2g and rated to 5 ATM, it's comfortable for daily wear and swim-capable for cross-training, with LiveTrack and incident detection adding a layer of safety to solo runs.
- Onboard music storage: Up to 500 songs, no phone required
- Garmin Pay: Contactless payments from the wrist
- Running dynamics: Advanced performance and training status metrics
- Stainless steel bezel: Corning Gorilla Glass 3 lens
- Safety tracking: LiveTrack and incident detection
- Swim-capable: 5 ATM water rating
Specifications
- Case size: 42.5 x 42.5 x 13.5mm, stainless steel bezel; weight 42.2g
- Display: 1.2" (30.4mm) sunlight-visible MIP, 240x240 pixels, Gorilla Glass 3
- Battery life: Up to 7 days smartwatch; 14 hours GPS without music; 5 hours GPS with music
- Water rating: 5 ATM
- Connectivity: Bluetooth Smart, ANT+, Wi-Fi
- Positioning: GPS, GLONASS
- Sensors: Garmin Elevate wrist HR, accelerometer, barometric altimeter, compass, gyroscope, thermometer
- Strap: Silicone, 20mm QuickFit compatible