Garmin Forerunner 255 3.3 cm (1.3) MIP 46 mm Digital 260 x 260 pixels Blue Wi-Fi GPS (satellite)

Features
Audible alarm(s): Yes
Barometric altimeter: Yes
Calendar notifications: Yes
Activity tracker: Yes
Heart rate monitor: Yes
Accelerometer: Yes
Stopwatch: Yes
Heart rate measuring: Automatic
Music player: Yes
Thermometer: Yes
Gyroscope: Yes
Calendar: Yes
Weather forecast: Yes
Call notifications: Yes
Multisport mode: Yes
Activity monitoring: Yes
Interval training: Yes
Auto training program adapting: Yes
Weather display: Yes
Recommended activity: Cycling, Running, Swimming, Golf
Smart notifications: Yes
Music control: Yes
Distance travelled: Yes
Blood oxygen sensor: Yes
Heart rate contact sensors: Yes
Electronic compass: Yes
Timer: Yes
Built-in distance meter: Yes
Quality of sleep: Yes
Virtual partner function: Yes
Barometer: Yes
Pedometer: Yes
Training programming: Yes
Clock mode: 12h/24h
Heart rate sensor type: Optical
Calories burned: Yes
Advanced workouts: Yes
Heart rate data transfer: Bluetooth/ANT+
Personal goals: Yes
Time/distance alert: Yes
SMS notifications: Yes
Automatic daily activity detection: Yes
Alarm clock: Yes
Heart rate-based calorie computation: Yes

Design
Removable strap: Yes
Closure type: Single prong strap buckle
Market positioning: Sport watch
Water resistance: 5 ATM
Band material: Silicone
Shape: Round
Lens material: Glass
Buckle colour: Black
Wrist size range: 130 - 205 mm
Watch case material: Carbon Fibre Reinforced Polymer (CFRP)
Watch case colour: Blue
Watch case size: 46 mm
Band size: One Size
Protection features: Water resistant, Waterproof
Band colour: Blue
Waterproof: Yes

Power
Battery life (max): 30 h
Battery life (GPS mode): 16 h
Battery life: 14 day(s)
Standby time (Bluetooth off): 25 h

Weight & dimensions
Thickness: 1.29 cm
Weight: 49 g
Width: 45.6 mm
Depth: 45.6 mm

Network
ANT+ enabled: Yes
Mobile network connection: No
GLONASS: Yes
Galileo: Yes
GPS (satellite): Yes

Performance
Built-in microphone: No
FM radio: No
Built-in camera: No
Flash memory: 4 GB
Built-in speaker(s): Yes

Display
Display type: Digital
Display resolution: 260 x 260 pixels
Display diagonal: 3.3 cm (1.3")
Display diameter: 3.3 cm
Watch glass type: Corning Gorilla Glass 3
Colour display: Yes
Touchscreen: No
Display technology: MIP

Ports & interfaces
Bluetooth: Yes
Near Field Communication (NFC): Yes
USB port: No
Wi-Fi: Yes
Headphone connectivity: Bluetooth