Pebble Time vs. Pebble Time Round vs. Amazfit Stratos vs. Fitbit Charge 3 vs. Amazfit T-Rex

 
Time
Time Round
Stratos
Charge 3
T-Rex
 PebbleTimeRemove Buy NowPebbleTime RoundRemove Buy NowAmazfitStratosRemove Buy NowFitbitCharge 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$200$199$150$140
Release20152015201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days2 days5 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution168 x 144n/a320 x 30066 x 18360 x 360
Size1.26 inchesround1.34 inches.721 inches1.3 inches
Touch
Typee-papere-paperOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX75 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSPebble OSProprietaryNABuild-in
Apps
Music

All Wearables