Polar M400 vs. Fitbit One vs. Pebble Time 2 vs. Garmin Forerunner 45 vs. Garmin VivoActive 4

 
M400
One
Time 2
Forerunner 45
VivoActive 4
 PolarM400Remove Buy NowFitbitOneRemove Buy NowPebbleTime 2Remove Buy NowGarminForerunner 45Remove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$200$100$199$199$349
Release20142012201620192019

Activity & Fitness

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

Battery

Duration8 hours to 30 days10-14 days10 days7 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/aNA208 x 208260 x 260
Sizen/an/aNA1.04 inches1.3ionches
Touch
Typen/aOLEDe-paperLCDMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMSplast Resistant3 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aPebble OSBuilt-inWear OS
Apps
Music

All Wearables