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Image of a Forerunner 235
Image of a Watch Series 4
Image of a Gen 5 Smartwatch Carlyle
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Basic Info

Suggested Price$299$299.99$329$295
Release2017201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days9 daysNot Yet1 day
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250215 x 180384 x 480328 x 328
Size1.421.23 inches1.78 inches1.3 inches
Touch
TypeOLEDMIPMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATMNot Yet3 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSWatch OS 5Wear OS
Apps
Music

All Wearables