Fitbit Flex 2 vs. Fitbit One vs. Fossil Explorist vs. Fitbit Charge 3 vs. Amazfit T-Rex

 
Flex 2
One
Explorist
Charge 3
T-Rex
 FitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowFossilExploristRemove Buy NowFitbitCharge 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$100$255$150$140
Release20162012201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days24 hours7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/an/a454 x45466 x 18360 x 360
Sizen/an/a1.4 inches.721 inches1.3 inches
Touchn/a
TypeLEDOLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplast ResistantIP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSNABuild-in
Apps
Music

All Wearables