Fitbit Flex 2 vs. Sony SmartBand Talk vs. ASUS ZenWatch 3 vs. Polar M430 vs. Amazfit Stratos

 
Flex 2
SmartBand Talk
ZenWatch 3
M430
Stratos
 FitbitFlex 2Remove Buy NowSonySmartBand TalkRemove Buy NowASUSZenWatch 3Remove Buy NowPolarM430Remove Buy NowAmazfitStratosRemove Buy Now

Basic Info

Suggested Price$100$170$229$255$199
Release20162014201720172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3 days48 hours30 hours5 days
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a296 x 128400 x 400128x128320 x 300
Sizen/a1.4 inches1.39 inches1.4 inch1.34 inches
Touchn/a
TypeLEDE InkAMOLEDLCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP68WR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearAndroid Wear 2Proprietary
Apps
Music

All Wearables