Apple Watch Series 3 vs. Fitbit Flex 2 vs. Garmin Forerunner 935 vs. Garmin Forerunner 45 vs. Amazfit GTS

 
Watch Series 3
Flex 2
Forerunner 935
Forerunner 45
GTS
 AppleWatch Series 3Remove Buy NowFitbitFlex 2Remove Buy NowGarminForerunner 935Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$329$100$500$199$150
Release20172016201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 daysUp to 2 weeks7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312n/a240 x 240208 x 208348 x 442
Size1.5 inches or 1.65 inchesn/a1.2 inches1.04 inches1.65 inches
Touchn/a
TypeAMOLEDLEDLCDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aBuilt-inWear OS
Apps
Music

All Wearables