Ionic
Vivofit 4
Fit
Time
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Basic Info

Suggested Price$299$79.95$130$150
Release2017201820162015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days1 year6 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x25088 x 88208 x 208168 x 144
Size1.42NA1.04 inches1.26 inches
Touch
TypeOLEDNAMemory LCDe-paper

Functions

Audio Speakern/a
Clock
Phone 5 ATM
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATMIP685 ATM

Notifications

Phone 5 ATM
Emails
Textsn/a

Software

Operating SystemFitbit OSn/aPebble OS
Appsn/a
Musicn/a

All Wearables