Samsung Gear S2
Tech specs 
Size49.8 x 42.3 x 11.4 mm
MaterialStainless Steel
ChargingQi wireless charging
BatteryLi-Ion 250 mAh battery
Battery lifeup to 24 hours
Water-resistanceIP68 (dust proof and water resistant over 1.5 meter and 30 minutes)
Weight47 grams
SensorAccelerometer, gyro, heart rate, barometer
DisplaySuper AMOLED capacitive touchscreen, 16M colors, Corning Gorilla Glass 3, Always on display
Screen size1.2 inches, 360x360 pixels
ColorsDark Gray, Silver
OtherPLATFORM: Tizen-based OS
PROCESSOR:
MEMORY:
CONNECTIVITY: Bluetooth, WiFi
Activity tracking 
StepsYes
DistanceYes
CaloriesYes
ActivityYes
Floors
SleepYes
Heart rateYes
Vo2Max
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
GPS
Running featuresTime, distance and pace
Swimming features
Smartphone notificationsSMS, MMS, Email, IM
Other
Links 
View onAmazon | Samsung | Best Buy | eBay
Amazon US rating4.0 out of 5 stars
Read more