Pebble Time vs. Fitbit Alta vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
Time
Alta
T-Rex
VivoActive 4
 PebbleTimeRemove Buy NowFitbitAltaRemove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$150$130$140$349
Release2015201620192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days20 days8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/a360 x 360260 x 260
Size1.26 inchesn/a1.3 inches1.3ionches
Touchn/a
Typee-paperOLEDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemPebble OSn/aBuild-inWear OS
Apps
Music

All Wearables