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
BatteryLithium-ion
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.
CONNECTIVITY: Bluetooth, WiFi
Activity tracking 
StepsYes
DistanceYes
Calories burnedYes
ActivityYes
FloorsYes
Sleep
Heart rate
Vo2Max
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPSYes
Running features
Swimming features
Other - Full color map for offline use
Non-fitness functions 
Smartphone notificationsYes
On-board music storage
Connected pay
Links 
Affiliate link*Amazon
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