Fitbit Flex 2 vs. Sony SmartBand Talk vs. Fitbit Alta HR vs. Amazfit GTS

 
Flex 2
SmartBand Talk
Alta HR
GTS
 FitbitFlex 2Remove Buy NowSonySmartBand TalkRemove Buy NowFitbitAlta HRRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$170$150$150
Release2016201420172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3 days7 days14 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a296 x 128128 x 36348 x 442
Sizen/a1.4 inches1.4 inches1.65 inches
Touchn/a
TypeLEDE InkOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWear OS
Apps
Music

All Wearables