Fitbit Alta vs. Fitbit Flex 2 vs. Pebble Time 2 vs. Pebble Core vs. Amazfit GTR

 
Alta
Flex 2
Time 2
Core
GTR
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowPebbleTime 2Remove Buy NowPebbleCoreRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$130$100$199$99$199
Release20162016201620162019

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration5 days5 days10 daysNA24 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/aNANA454 x 454
Sizen/an/aNANA1.39 inches
Touchn/an/aNA
TypeOLEDLEDe-paperNAAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM3 ATMNA5 ATM

Notifications

PhoneNA
Emailsn/aNA
TextsNA

Software

Operating Systemn/an/aPebble OSNABuild-in
Apps
Music

All Wearables