Fitbit Flex 2 vs. Garmin Forerunner 235 vs. Garmin Vivosport vs. Polar A370 vs. Amazfit T-Rex

 
Flex 2
Forerunner 235
Vivosport
A370
T-Rex
 FitbitFlex 2Remove Buy NowGarminForerunner 235Remove Buy NowGarminVivosportRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$299.99$199$179.95$140
Release20162017201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days9 days7 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a215 x 18072 x 144160 x 80360 x 360
Sizen/a1.23 inchesNA1.18 inches1.3 inches
Touchn/a
TypeLEDMIPMIPTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aBuild-in
Apps
Music

All Wearables