Fitbit Flex 2 vs. Garmin 645 Music vs. Mobvoi TicWatch S2 vs. Garmin Vivosmart 4 vs. Amazfit GTS

 
Flex 2
645 Music
TicWatch S2
Vivosmart 4
GTS
 FitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowMobvoiTicWatch S2Remove Buy NowGarminVivosmart 4Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$450$180$130$150
Release20162018201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days2 DAYS7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240400 x 40048 x 128348 x 442
Sizen/a1.2 inches1.39 inches0.74 inches1.65 inches
Touchn/a
TypeLEDMIPOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWear OS
Apps
Music

All Wearables