Polar M400 vs. Polar M600 vs. Moov Now vs. Fitbit Inspire HR vs. HTC re Grip

 
M400
M600
Now
Inspire HR
re Grip
 PolarM400Remove Buy NowPolarM600Remove Buy NowMoovNowRemove Buy NowFitbitInspire HRRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$200$330$79$99$199
Release20142016201520192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/an/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 hours to 30 days2 days6 months5 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/an/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240n/a139 x 60160 x 32
Sizen/a1.3 inchesn/a1.4 inches1.8 inches
Touchn/an/a
Typen/aTFTn/aOLEDPMOLED

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance3 ATMIPX8n/a5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/aFitbit OSNA
Apps
Music

All Wearables