Withings Activite Sapphire vs. Withings Activite Steel vs. Fitbit One vs. Apple Watch Series 2 vs. Amazfit T-Rex

 
Activite Sapphire
Activite Steel
One
Watch Series 2
T-Rex
 WithingsActivite SapphireRemove Buy NowWithingsActivite SteelRemove Buy NowFitbitOneRemove Buy NowAppleWatch Series 2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$450$170$100$269$140
Release20142015201220162019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration8 months8 months10-14 days18 hours20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/a340 x 272 or 390 x 312360 x 360
Size1.3 inches1.3 inchesn/a1.5 inches or 1.65 inches1.3 inches
Touch
TypeAnalogAnalogOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMSplast Resistant5ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aWatch OSBuild-in
Apps
Music

All Wearables