Compare Smartwatches and Fitness trackers.
  Fitbit Flex 2 Apple Watch Series 4

Compare Fitbit Flex 2 vs Apple Watch Series 4

  Fitness Tracker Smartwatch
Release / Update 2016 2018
Suggested Price $100 $399
 

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
VO2max (Oxygen)
Sleep
Steps
Swim

Battery

Duration 5 days 18 hours
Charging Rechargeable Wireless charging

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution N/A 40mm: 324x394
44mm: 368x448
Size N/A 759 sq mm display area
977 sq mm display area
Touch
Type LED OLED Retina display with Force Touch, 1000 nits brightness

Functions

Audio Speaker
Clock
Phone
Vibration
Voice
Camera

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 5ATM (50 metres) 5ATM (50 metres)

Notifications

Phone
Emails
Texts

Software

Operating System N/A watchOS 5.0, upgradable to 5.2.1
Apps
Music

More Info & Buy

Storage
16GB
Extra
Colors: Space Black, Silver, Gold
Build: Stainless Steel frame; all-ceramic/sapphire crystal back
Bluetooth 5.0;
Requires an iPhone 6 or later with iOS 12 or later;
Water resistance: Apple Watch 4 should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.
Pros
Fitbit Flex 2 Pros
Apple Watch Series 4 Pros
+ Larger display
+ Lightweight design
Cons
Fitbit Flex 2 Cons
Apple Watch Series 4 Cons
- No always-on display option
- Battery isn't amazing
- Still pricey
 
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