Pebble Time vs. Fitbit Ionic vs. Fitbit Charge 3 vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Time
Ionic
Charge 3
Vivosmart 4
T-Rex
 PebbleTimeRemove Buy NowFitbitIonicRemove Buy NowFitbitCharge 3Remove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$299$150$130$140
Release20152017201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days4+ days7 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution168 x 144348x25066 x 1848 x 128360 x 360
Size1.26 inches1.42.721 inches0.74 inches1.3 inches
Touch
Typee-paperOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSFitbit OSNABuild-in
Apps
Music

All Wearables