TomTom Spark vs. Sony SmartBand 2 vs. ASUS ZenWatch 3 vs. Garmin 645 Music vs. Xiaomi Mi Band 4

 
Spark
SmartBand 2
ZenWatch 3
645 Music
Mi Band 4
 TomTomSparkRemove Buy NowSonySmartBand 2Remove Buy NowASUSZenWatch 3Remove Buy NowGarmin645 MusicRemove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$150$130$229$450$25
Release20152015201720182019

Activity & Fitness

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

Battery

Durationn/a2 days48 hours7 days20 days
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/an/a
Resolutionn/an/a400 x 400240 x 240120x240
Sizen/an/a1.39 inches1.2 inches0.95 inches
Touchn/a
TypeLCDn/aAMOLEDMIPAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP585 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aAndroid Wear 2AMAZFIT OS
Apps
Music

All Wearables