Fitbit Alta vs. Fitbit Flex 2 vs. Diesel On Full Guard vs. Sony SmartBand vs. Apple Watch Series 4

 
Alta
Flex 2
On Full Guard
SmartBand
Watch Series 4
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowDieselOn Full GuardRemove Buy NowSonySmartBandRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$130$100$325$100$329
Release20162016201720142018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days1 day5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/aNA
Resolutionn/an/a454 x 454NA384 x 480
Sizen/an/a1.4 inchesNA1.78 inches
Touchn/an/aNA
TypeOLEDLEDOMOLEDNAMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMIP67IP58Not Yet

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid Wear 2.0NAWatch OS 5
Apps
Music

All Wearables