Polar Loop 2 vs. Garmin Forerunner 935 vs. Amazfit Stratos vs. Garmin Vivofit 4 vs. Pebble Core

 
Loop 2
Forerunner 935
Stratos
Vivofit 4
Core
 PolarLoop 2Remove Buy NowGarminForerunner 935Remove Buy NowAmazfitStratosRemove Buy NowGarminVivofit 4Remove Buy NowPebbleCoreRemove Buy Now

Basic Info

Suggested Price$120$500$199$79.95$99
Release20152017201820182016

Activity & Fitness

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

Battery

Duration8 days (without notifications)Up to 2 weeks5 days1 yearNA
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240320 x 30088 x 88NA
Sizen/a1.2 inches1.34 inchesNANA
TouchNA
TypeLEDLCDOLEDNANA

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5 ATM5 ATM5 ATMNA

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aProprietaryNA
Apps
Music

All Wearables