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Garmin Forerunner 255 · Photo source

Garmin Forerunner 255
Photo 1 of 94

Garmin Forerunner 255 · Photo source

Garmin · Forerunner

Forerunner 255

Released June 2022

A 46 mm GPS running watch with multi-band positioning, triathlon profiles and training metrics.

Model history · 2 models, 2019–2022
  1. 2019Forerunner 245Compare
  2. 2022Forerunner 255
Type
Smart and sports
Sizes
46 mm
Movement
–
Power reserve
–
Display
Memory-in-pixel
Battery
14 days
Water
50 m
GPS
Dual-band
Weight
49 g

Display

Case sizes
46 mm
Panel
Memory-in-pixel
Always-on display
Yes
Display detail
1.3-inch (33 mm) transflective colour memory-in-pixel display, 260 x 260 pixels; button-operated.
Screen protection
Corning Gorilla Glass 3.

Health and fitness

ECG
No
Blood oxygen
Yes
Skin temperature
No
Sleep apnoea alerts
No
High blood pressure alerts
No
Body composition
No
Fall detection
No
Crash detection
No
GPS
Dual-band (L1 and L5)
Water resistance
50 m
Sensors
GPS, GLONASS, Galileo, multi-frequency GNSS, Garmin Elevate wrist heart rate, Pulse Ox, barometric altimeter, compass, gyroscope and accelerometer.
Health features
Pulse Ox, HRV status, sleep score, all-day stress and Body Battery energy monitoring.
Fitness features
Triathlon and open-water swimming profiles, morning report, race widget, daily suggested workouts, training status and load, recovery time and PacePro; breadcrumb course guidance.
Safety features
Incident detection and assistance require a paired smartphone; LiveTrack.

Battery and connections

Battery life (maker's claim)
Up to 14 days
Mobile data option
No
Works with
iPhone and Android
Battery life detail
Up to 14 days in smartwatch mode, 30 hours in GPS-only mode or 16 hours with all-systems multi-band GNSS.
Charging
Rechargeable battery with Garmin charging cable.
Connectivity
Bluetooth and ANT+; Garmin Pay, Connect IQ, smart notifications and phone music controls. This standard model does not store music.

Design

Weight (lightest version)
49 g
Software
Garmin
Case materials
Fibre-reinforced polymer bezel and silicone band; 5 ATM water rating.
Size
45.6 x 45.6 x 12.9 mm; 49 g.
Bands
Quick-release 22 mm band; fits wrists 130–205 mm.
Colours
Tidal blue with black bezel.

Pros and cons

Pros

  • Up to 14 days of smartwatch battery life
  • Multi-band positioning and triathlon profiles
  • Light 49 g case with five-button control

Cons

  • No on-watch music storage on this standard model
  • Course navigation uses a breadcrumb trail rather than maps

Closest rivals

Model
TypeSizesMovementPower reserveDisplayBatteryWaterGPSWeightReleased
Smart and sports47 mm––Memory-in-pixel15 days50 mDual-band52 gJun 2022
Smart and sports42, 46 mm––OLED15 days50 mDual-band39 gMar 2023
Smart and sports42, 47 mm––OLED16 days50 mDual-band44 gMay 2023

Previous model: Forerunner 245.

Sources

  1. garmin.com.sg/products/wearables/forerunner-255-blue
  2. garmin.com/en-US/newsroom/press-release/sports-fitness/garmin-celebrates-global…

Photo: garmin.com.sg

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