Polar M400 vs. Pebble Time 2 vs. Mobvoi TicWatch S vs. Amazfit T-Rex vs. Apple SE

 
M400
Time 2
TicWatch S
T-Rex
SE
 PolarM400Remove Buy NowPebbleTime 2Remove Buy NowMobvoiTicWatch SRemove Buy NowAmazfitT-RexRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$200$199$199$140$279
Release20142016201720192020

Activity & Fitness

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

Battery

Duration8 hours to 30 days10 days1.5-2 days20 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNA400 x 400360 x 360384 x 480
Sizen/aNA1.4 inches1.3 inches40mm
Touch
Typen/ae-paperOLEDAMOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance3 ATM3 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aPebble OSAndroid Wear 2.0Build-inWatchOS 5
Apps
Music

All Wearables