Fitbit Flex 2 vs. Huawei Talkband B2 vs. ASUS ZenWatch 3 vs. Fitbit Charge HR vs. Apple Watch 7

 
Flex 2
Talkband B2
ZenWatch 3
Charge HR
Watch 7
 FitbitFlex 2Remove Buy NowHuaweiTalkband B2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitCharge HRRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$100$180$229$150$429
Release20162015201720152021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3 days48 hours5 days18 Hours
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 88400 x 400NA396 x 484
Sizen/a0.73 inches1.39 inchesNA1.9 inches
Touchn/aNA
TypeLEDPMOLEDAMOLEDOLEDMicroLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP571 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2NAWatchOS 8
Apps
Music

All Wearables