Garmin Vivosmart vs. Polar Loop 2 vs. Garmin Fenix 5s vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Vivosmart
Loop 2
Fenix 5s
Vivosmart 4
T-Rex
 GarminVivosmartRemove Buy NowPolarLoop 2Remove Buy NowGarminFenix 5sRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$170$120$599.99$130$140
Release20142015201720182019

Activity & Fitness

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

Battery

Duration7 days8 days (without notifications)Up to 9 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 16n/a218x 21848 x 128360 x 360
Size1.41 inchesn/a1.1 inches0.74 inches1.3 inches
Touch
TypeOLEDLEDnaOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM2 ATM10ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuild-in
Apps
Music

All Wearables