Fitbit Flex 2 vs. Amazfit Stratos vs. Garmin Chronos vs. HTC re Grip vs. Apple Watch 7

 
Flex 2
Stratos
Chronos
re Grip
Watch 7
 FitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowGarminChronosRemove Buy NowHTCre GripRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$100$199$1500$199$429
Release20162018201820202021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days8 days5 hours to 2.5 days18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 300218 x 218160 x 32396 x 484
Sizen/a1.34 inches1.2 inches1.8 inches1.9 inches
Touchn/a
TypeLEDOLEDMIPPMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM10 ATMIP57water resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryWear OSNAWatchOS 8
Apps
Music

All Wearables