Have you conducted testing on physical devices rather than emulators or simulators?

Yes, testing on physical devices is an important practice because emulators and simulators do not always accurately reflect the application's behavior in real-world conditions.

Advantages of testing on real devices:

• Checking performance and responsiveness in real conditions
• Testing interaction with hardware components (camera, GPS, sensors)
• Verifying behavior under real network conditions
• Identifying compatibility and stability issues

In QA practice, a combination of automated testing on emulators and manual testing on physical devices is often used.