Huawei Talkband B2 vs. Amazfit Stratos vs. Polar A370 vs. Amazfit T-Rex

 
Talkband B2
Stratos
A370
T-Rex
 HuaweiTalkband B2Remove Buy NowAmazfitStratosRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$180$199$179.95$140
Release2015201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration3 days5 daysUp to 3 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 88320 x 300160 x 80360 x 360
Size0.73 inches1.34 inches1.18 inches1.3 inches
Touch
TypePMOLEDOLEDTFT LCDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP575 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryBuild-in
Apps
Music

All Wearables