Pebble Steel vs. Pebble Time vs. Pebble Time Round vs. Fitbit Alta vs. Amazfit T-Rex

 
Steel
Time
Time Round
Alta
T-Rex
 PebbleSteelRemove Buy NowPebbleTimeRemove Buy NowPebbleTime RoundRemove Buy NowFitbitAltaRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$150$200$130$140
Release20142015201520162019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days7 days2 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144168 x 144n/an/a360 x 360
Size1.26 inches1.26 inchesroundn/a1.3 inches
Touchn/a
Typee-papere-papere-paperOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIPX7n/a5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemPebble OSPebble OSPebble OSn/aBuild-in
Apps
Music

All Wearables