Fitbit Alta vs. Apple Watch Series 2 vs. Fitbit Flex vs. Garmin Vivosmart HR Plus vs. Amazfit GTS

 
Alta
Watch Series 2
Flex
Vivosmart HR Plus
GTS
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowFitbitFlexRemove Buy NowGarminVivosmart HR PlusRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$130$269$100$179$150
Release20162016201320172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours5 days5 days14 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312NA160 x 68348 x 442
Sizen/a1.5 inches or 1.65 inchesNA0.5 inches x 0.8 inches1.65 inches
Touchn/aNA
TypeOLEDAMOLEDLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSNANAWear OS
Apps
Music

All Wearables