Apple Watch Series 3 vs. Polar M600 vs. Fitbit Flex 2 vs. Fitbit Inspire HR vs. HTC re Grip

 
Watch Series 3
M600
Flex 2
Inspire HR
re Grip
 AppleWatch Series 3Remove Buy NowPolarM600Remove Buy NowFitbitFlex 2Remove Buy NowFitbitInspire HRRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$329$330$100$99$199
Release20172016201620192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours2 days5 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution340 x 272 or 390 x 312240 x 240n/a139 x 60160 x 32
Size1.5 inches or 1.65 inches1.3 inchesn/a1.4 inches1.8 inches
Touchn/an/a
TypeAMOLEDTFTLEDOLEDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX85 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4Android Wearn/aFitbit OSNA
Apps
Music

All Wearables