Huawei Talkband B2 vs. Polar Loop 2 vs. Fitbit Charge HR vs. Garmin Vivosmart 4 vs. Apple Watch 7

 
Talkband B2
Loop 2
Charge HR
Vivosmart 4
Watch 7
 HuaweiTalkband B2Remove Buy NowPolarLoop 2Remove Buy NowFitbitCharge HRRemove Buy NowGarminVivosmart 4Remove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$180$120$150$130$429
Release20152015201520182021

Activity & Fitness

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

Battery

Duration3 days8 days (without notifications)5 days7 days18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 88n/aNA48 x 128396 x 484
Size0.73 inchesn/aNA0.74 inches1.9 inches
TouchNA
TypePMOLEDLEDOLEDOLEDMicroLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP572 ATM1 ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNAWatchOS 8
Apps
Music

All Wearables