Fitbit Alta vs. Fitbit One vs. Fitbit Ionic vs. Fitbit Charge vs. Fitbit Flex

 
Alta
One
Ionic
Charge
Flex
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Basic Info

Suggested Price$130$100$299$130$100
Release20162012201720142013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days4+ days7-10 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a348x250NANA
Sizen/an/a1.42NANA
Touchn/aNANA
TypeOLEDOLEDOLEDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aSplast Resistant50m1 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aFitbit OSNANA
Apps
Music

All Wearables