Pebble Time vs. Pebble Time Round vs. Polar Loop 2 vs. Garmin Forerunner 45 vs. Xiaomi Mi Band 4

 
Time
Time Round
Loop 2
Forerunner 45
Mi Band 4
 PebbleTimeRemove Buy NowPebbleTime RoundRemove Buy NowPolarLoop 2Remove Buy NowGarminForerunner 45Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$150$200$120$199$25
Release20152015201520192019

Activity & Fitness

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

Battery

Duration7 days2 days8 days (without notifications)7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144n/an/a208 x 208120x240
Size1.26 inchesroundn/a1.04 inches0.95 inches
Touch
Typee-papere-paperLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX72 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSPebble OSn/aBuilt-inAMAZFIT OS
Apps
Music

All Wearables