Fitbit Surge vs. Fitbit Alta vs. ASUS ZenWatch 3 vs. Garmin 645 Music vs. Fitbit Flex

 
Surge
Alta
ZenWatch 3
645 Music
Flex
 FitbitSurgeRemove Buy NowFitbitAltaRemove Buy NowASUSZenWatch 3Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$250$130$229$450$100
Release20162016201720182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days48 hours7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a400 x 400240 x 240NA
Size1.26 inchesn/a1.39 inches1.2 inchesNA
Touchn/aNA
TypeMonochrome LCDOLEDAMOLEDMIPLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid Wear 2NA
Apps
Music

All Wearables