Apple Watch Series 3 vs. Fitbit Flex 2 vs. Polar Loop vs. Fitbit Inspire HR vs. HTC re Grip

 
Watch Series 3
Flex 2
Loop
Inspire HR
re Grip
 AppleWatch Series 3Remove Buy NowFitbitFlex 2Remove Buy NowPolarLoopRemove Buy NowFitbitInspire HRRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$329$100$100$99$199
Release20172016201320192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days5 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312n/aNA139 x 60160 x 32
Size1.5 inches or 1.65 inchesn/aNA1.4 inches1.8 inches
Touchn/a
TypeAMOLEDLEDLEDOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM2 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/aNAFitbit OSNA
Apps
Music

All Wearables