Forerunner 255 Music, WiFi, GPS - Black
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Run at a higher level with the Forerunner 255 smartwatch. These running smartwatches help you train and recover smarter with training status, running power, multi-band GPS and daily suggested workouts that adapt to your performance and goals. Plus, other new features — such as race widget — help you plan your race-day strategy, and morning report with HRV status reveals your overall health alongside the day ahead. And with Garmin Pay contactless payments with a supported card, it’s never been easier to buy that post-workout coffee — no matter how you work out — with more than 30 activity profiles, including triathlon, cycling, swimming and more. With Forerunner 255, you can get a continuous picture of your health, from training and recovery to sleep quality and overall wellness — and with up to 14 days of battery life in smartwatch mode and up to 30 hours in GPS mode.

Sleep score and insights

Battery life (smartwatch mode)
Up to 14 Days

Daily suggested workouts
Yes (7 Days)

Pulse ox blood oxygen
Yes (spot-check, and optional all-day acclimation and in sleep)

Garmin pay™

Multi-band gps

Music storage

Training status
Yes (improved)

Watch display type
Sunlight-visible, transflective memory-in-pixel (MIP)

Watch water rating

Lens material
Corning® Gorilla® Glass 3

Bezel material
Fiber-reinforced polymer

Quick release bands
Yes (22 mm, Industry standard)

Strap material

Display resolution
260 x 260 pixels

Battery life
Smartwatch mode: Up to 14 days
GPS-only GNSS mode: Up to 30 hours
All-Systems GNSS mode with music: Up to 6.5 hours
All-Systems GNSS mode: Up to 25 hours
All-Systems GNSS mode plus Multi-Band:Up to 16 hours

Charging method
Garmin proprietary plug charger

4 GB

Bluetooth®, ANT+®, Wi-Fi®

Abnormal heart rate alerts
Yes (high and low)
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