Polar M400 vs. Mobvoi TicWatch e2 vs. Amazfit T-Rex vs. Fossil Gen 5 Smartwatch Carlyle vs. Apple Watch Ultra

 
M400
TicWatch e2
T-Rex
Gen 5 Smartwatch Carlyle
Watch Ultra
 PolarM400Remove Buy NowMobvoiTicWatch e2Remove Buy NowAmazfitT-RexRemove Buy NowFossilGen 5 Smartwatch CarlyleRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$200$200$140$295$799
Release20142019201920192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 hours to 30 days1 day20 days1 day36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a360 x 360360 x 360328 x 328502x410 pixels
Sizen/a1.2 inches1.3 inches1.3 inches1.92 inches
Touch
Typen/aAMOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP685 ATM3 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSBuild-inWear OSWatchOS 9
Apps
Music

All Wearables