Motorola Moto 360 (2nd Gen) vs. Pebble Time Steel vs. Polar M400 vs. Huawei Talkband B2 vs. Xiaomi Mi Band 4

 
Moto 360 (2nd Gen)
Time Steel
M400
Talkband B2
Mi Band 4
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPebbleTime SteelRemove Buy NowPolarM400Remove Buy NowHuaweiTalkband B2Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$300$250$200$180$25
Release20152015201420152019

Activity & Fitness

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

Battery

Duration1.5 days10 days8 hours to 30 days3 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330168 x 144n/a128 x 88120x240
Size1.37 inches or 1.56 inches1.26 inchesn/a0.73 inches0.95 inches
Touch
TypeLCDe-papern/aPMOLEDAMOLED

Functions

Audio SpeakerBluetoothAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM3 ATMIP575 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearPebble OSn/an/aAMAZFIT OS
Apps
Musicn/a

All Wearables