Casio WSD-F20 Protrek Smart
Tech specs 
Size61.7mm × 57.7mm × 15.3mm (H × W × D)
MaterialThe watch has a tough casing and passes military standard testing for endurance and environmental stress.
ChargingMagnetic charging
Battery lifeUp to 25 hours of battery life with GPS on and one month when in Timepiece mode
Water-resistance5 ATM (50 meters)
Weight92 grams
SensorPressure (air pressure, altitude) sensor, accelerometer, gyrometer, compass (magnetic) sensor, microphone, vibrator
DisplayColor TFT LCD and monochrome LCD
Screen size1.32-inch dual layer display
Color: 320 × 300 pixels
ColorsBlack/Orange, Black/Black, Black/Red, Black Green
OtherPLATFORM: Android Wear
PROCESSOR: Snapdragon 2100 processor
MEMORY: 512MB of RAM; 4GB of internal storage.
Activity tracking 
Calories burnedYes
Heart rate
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
Running features
Swimming features
Other - Full color map for offline use
Non-fitness functions 
Smartphone notificationsYes
On-board music storage
Connected pay
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