Compare Smartwatches and Fitness trackers.
  Amazfit Stratos Apple Watch Series 3 Fitbit Flex 2

Compare Amazfit Stratos vs Apple Watch Series 3 vs Fitbit Flex 2

  Smartwatch Smartwatch Fitness Tracker
Release / Update 2018 2017 2016
Suggested Price $199 $279 $100
 

Activity & Fitness

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

Battery

Duration 5 days 18 hours 5 days
Charging Rechargeable Wireless charging Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution 320x300 38mm: 340x272
42mm: 390x312
N/A
Size 1.34" 1.5"
1.65"
N/A
Touch
Type OLED AMOLED LED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice
Camera

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating System Propietary watchOS 4.0, upgradable to 5.2.1 N/A
Apps
Music

More Info & Buy

Storage
16GB, 768 MB RAM
Extra
Colors: Space Black, Silver
Build: Stainless Steel/Ceramic back
3D Touch display
Bluetooth 4.2
Pros
Amazfit Stratos Pros
Apple Watch Series 3 Pros
+ Adds barometer to GPS and swimproofing
Fitbit Flex 2 Pros
Cons
Amazfit Stratos Cons
Apple Watch Series 3 Cons
- Battery life takes a major hit when making calls or during GPS workouts
Fitbit Flex 2 Cons
 
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