Fitbit Flex 2 vs. Fitbit Zip vs. Diesel On Full Guard vs. Garmin Forerunner 45 vs. Amazfit GTS

 
Flex 2
Zip
On Full Guard
Forerunner 45
GTS
 FitbitFlex 2Remove Buy NowFitbitZipRemove Buy NowDieselOn Full GuardRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$60$325$199$150
Release20162012201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days6 months1 day7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a454 x 454208 x 208348 x 442
Sizen/an/a1.4 inches1.04 inches1.65 inches
Touchn/a
TypeLEDn/aOMOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplash ResistantIP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2.0Built-inWear OS
Apps
Music

All Wearables