Polar M400 vs. Fitbit Ionic vs. Pebble Core vs. Mobvoi TicWatch S2 vs. Garmin Vivosmart 4

 
M400
Ionic
Core
TicWatch S2
Vivosmart 4
 PolarM400Remove Buy NowFitbitIonicRemove Buy NowPebbleCoreRemove Buy NowMobvoiTicWatch S2Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$200$299$99$180$130
Release20142017201620192018

Activity & Fitness

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

Battery

Duration8 hours to 30 days4+ daysNA2 DAYS7 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250NA400 x 40048 x 128
Sizen/a1.42NA1.39 inches0.74 inches
TouchNA
Typen/aOLEDNAOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM50mNA5 ATM5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aFitbit OSNAWear OS
Apps
Music

All Wearables