Garmin Fenix 3 Fitbit Flex 2 Fitbit Charge 2 Polar Loop 2
  Garmin Fenix 3 Remove Buy Now Fitbit Flex 2 Remove Buy Now Fitbit Charge 2 Remove Buy Now Polar Loop 2 Remove Buy Now

Basic Info

Suggested Price $500 $100 $150 $120
Release 2015 2016 2016 2015

Activity & Fitness

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

Battery

Duration 50 hours to 6 weeks 5 days 5 days 8 days (without notifications)
Rechargeable

Compatibility

Android
iOS
Windows Phone n/a n/a n/a
Mac n/a n/a
Windows n/a n/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color n/a
Resolution 218 x 218 n/a n/a n/a
Size 1.2 inches n/a n/a n/a
Touch n/a n/a
Type Chroma LED LED OLED LED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance 10 ATM 5 ATM n/a 2 ATM

Notifications

Phone
Emails
Texts

Software

Operating System n/a n/a n/a n/a
Apps
Music