Fitbit Flex 2 vs. Sony SmartBand Talk vs. Garmin 645 Music vs. Mobvoi TicWatch S2 vs. Amazfit T-Rex

 
Flex 2
SmartBand Talk
645 Music
TicWatch S2
T-Rex
 FitbitFlex 2Remove Buy NowSonySmartBand TalkRemove Buy NowGarmin645 MusicRemove Buy NowMobvoiTicWatch S2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$170$450$180$140
Release20162014201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3 days7 days2 DAYS20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a296 x 128240 x 240400 x 400360 x 360
Sizen/a1.4 inches1.2 inches1.39 inches1.3 inches
Touchn/a
TypeLEDE InkMIPOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP685 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWear OSBuild-in
Apps
Music

All Wearables