Polar Loop 2 vs. Garmin Chronos vs. Xiaomi Mi Band 4 vs. HTC re Grip

 
Loop 2
Chronos
Mi Band 4
re Grip
 PolarLoop 2Remove Buy NowGarminChronosRemove Buy NowXiaomiMi Band 4Remove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$120$1500$25$199
Release2015201820192020

Activity & Fitness

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

Battery

Duration8 days (without notifications)8 days20 days5 hours to 2.5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a218 x 218120x240160 x 32
Sizen/a1.2 inches0.95 inches1.8 inches
Touch
TypeLEDMIPAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM10 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSAMAZFIT OSNA
Apps
Music

All Wearables