Polar M400 vs. MobVoi TicWatch Pro vs. Mobvoi TicWatch S vs. Fitbit Charge HR vs. HTC re Grip

 
M400
TicWatch Pro
TicWatch S
Charge HR
re Grip
 PolarM400Remove Buy NowMobVoiTicWatch ProRemove Buy NowMobvoiTicWatch SRemove Buy NowFitbitCharge HRRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$200$300$199$150$199
Release20142018201720152020

Activity & Fitness

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

Battery

Duration8 hours to 30 days30 days1.5-2 days5 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 400400 x 400NA160 x 32
Sizen/a1.4 inches1.4 inchesNA1.8 inches
TouchNA
Typen/aOLED/FSTNOLEDOLEDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP68IP671 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSAndroid Wear 2.0NANA
Apps
Music

All Wearables