Garmin Vivoactive vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Instinct vs. Apple Watch Ultra

 
Vivoactive
Flex 2
645 Music
Instinct
Watch Ultra
 GarminVivoactiveRemove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminInstinctRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$250$100$450$300$799
Release20152016201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days5 days7 days14 days36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution205 x 148n/a240 x 240128 x 128502x410 pixels
Size1.38 inchesn/a1.2 inches0.9 inches1.92 inches
Touchn/a
TypeLCDLEDMIPOMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM10 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatchOS 9
Apps
Music

All Wearables