Fitbit Alta vs. Fitbit Flex 2 vs. Amazfit Bip vs. Michael Kors Access Sofie HR vs. Apple Watch Ultra

 
Alta
Flex 2
Bip
Access Sofie HR
Watch Ultra
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowAmazfitBipRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$130$100$99.99$395$799
Release20162016201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days30 days2 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a176 x 176390 x 390502x410 pixels
Sizen/an/a1.28 inches1.19 inches1.92 inches
Touchn/an/a
TypeOLEDLEDNAOMOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMIP680.3 ATM10 ATM (100 Meters)

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aWear OSWatchOS 9
Apps
Music

All Wearables