One
A370
M400
Gear S
 FitbitOneRemove Buy NowPolarA370Remove Buy NowPolarM400Remove Buy NowSamsungGear SRemove Buy Now

Basic Info

Suggested Price$100$179.95$200$250
Release2012201720142013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 daysUp to 3 days8 hours to 30 daysn/a
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a160 x 80n/a480 x 360
Sizen/a1.18 inchesn/a2 inches
Touch
TypeOLEDTFT LCDn/aSuper AMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast ResistantWR303 ATMIP67

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aTizen
Apps
Music

All Wearables