Withings Steel HR Sport
Tech specs 
SizeDiameter: 39.5mm (1.6")
Thickness: 13mm (0.51)
Wristband width: 20mm (0.79")
MaterialStainless steel case featuring engraved bezel, matte metallic hands with color accent, mineral glass, and a soft silicone wristband with ventilation holes designed for comfort during workouts.
ChargingUSB
BatteryCR2025
Battery lifeUp to 25 days in normal use
Up to 5 days in workout mode
+20 additional days in power reserve mode (time and activity tracking only)
Water-resistanceUp to 50 m (5 ATM)
Weight49 grams
SensorDay & Night motion sensor
High precision MEMS 3-axis accelerometer
Low power consumption
Optical heart rate sensor
DisplayAnalog. OLED screen displays phone notifications, heart rate, steps, distance, calories, activities and alarm settings.
Screen size39.5mm diameter
Colors
OtherPLATFORM: Propriatory
PROCESSOR: N/A
MEMORY: N/A
CONNECTIVITY: Bluetooth 4.0
Activity tracking 
StepsYes
DistanceYes
Calories burnedYes
ActivityYes
Floors
SleepYes
Heart rateYes
Stress & recovery
UV exposure
Skin temperature
Galvanic skin response
Hydration level
Calorie intake
GPSConnected GPS
Running featuresMaps your session with distance, elevation and pace
Swimming featuresCalories and duration
Other Silent alarm
Non-fitness functions 
Smartphone notificationsYes (text, call and email alerts)
On-board music storage
Connected pay
LTE
Links 
Affiliate link*Amazon | Withings
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