Garmin Forerunner 235
Tech specs 
Size45.0 x 45.0 x 11.7 mm
MaterialPlastic with silicon band
ChargingYes
Batterylithium-ion
Battery life11 hours training, 9 days watch + activity tracking + notifications + heart rate
Water-resistance5 ATM
Weight42 grams
SensorAccelerometer, optical heart rate sensor, GPS
Displaycolor - 215 x 180 pixels
Screen size31.1 mm diameter
ColorsBlack/Gray, Frost Blue, Marsala
OtherPLATFORM: Proprietary OS
PROCESSOR: N/A
MEMORY: 200 hours of activity data
CONNECTIVITY: Bluetooth Smart, Ant+, Wi-Fi
Activity tracking 
StepsYes
DistanceYes
CaloriesYes
ActivityYes
Floors
SleepYes
Heart rate24/7
Vo2MaxYes
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
GPSGPS and GLONASS enabled
Running featuresVO2 max estimate, recovery advisor, race predictor, calculates distance for indoor workouts, personal records
Swimming features
Smartphone notificationsYes
Other - Music control, Fine my phone
- Remembers 200 hours of activity data
Links 
Affiliate link*Amazon | eBay
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