Polar Loop 2 vs. Sony SmartBand 2 vs. Diesel On Full Guard 2.5 vs. Fitbit Inspire HR vs. Apple Watch 7

 
Loop 2
SmartBand 2
On Full Guard 2.5
Inspire HR
Watch 7
 PolarLoop 2Remove Buy NowSonySmartBand 2Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowFitbitInspire HRRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$120$130$325$99$429
Release20152015201820192021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 days (without notifications)2 days4 days5 days18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a454x454139 x 60396 x 484
Sizen/an/a1.39 inches1.4 inches1.9 inches
Touchn/a
TypeLEDn/aOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP583 ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSFitbit OSWatchOS 8
Apps
Music

All Wearables