Test on real devices offers several advantages over testing on emulators or simulators:

Accurate Simulation: Real devices provide a more accurate simulation of end-user environments compared to emulators or simulators. They replicate real-world conditions, including hardware configurations, operating system versions, and network conditions, leading to more reliable test results.

Device-specific Issues: Real devices help identify device-specific issues that may not be apparent in emulated environments. These issues can include hardware limitations, manufacturer-specific quirks, or inconsistencies across different versions of the same device.

Performance Testing: Testing on real devices allows for more accurate performance testing under real-world conditions. This includes assessing factors such as app responsiveness, battery consumption, CPU and memory usage, and network performance, providing insights into the app's behavior in production environments.

User Experience Validation: Real devices enable thorough validation of the user experience, including touch responsiveness, screen sizes, resolutions, and device-specific interactions. This ensures that the app delivers a seamless and intuitive experience across a wide range of devices.

Hardware Compatibility: Real device testing helps ensure compatibility with various hardware components, such as cameras, GPS, sensors, and peripherals. It allows developers to verify that the app functions correctly with the specific hardware features of different devices, enhancing overall usability.

Network Testing: Real devices enable comprehensive testing of network-related features, such as cellular connectivity, Wi-Fi, Bluetooth, and location services. This ensures that the app performs reliably under different network conditions and geographic locations.

Regulatory Compliance: Testing on real devices may be necessary to comply with industry regulations and standards, particularly in sectors such as healthcare, finance, or government, where strict security and compliance requirements exist.

Increased Confidence: By testing on real devices, developers and QA teams can gain increased confidence in the app's stability, performance, and usability. This reduces the likelihood of encountering critical issues or unexpected behavior when the app is deployed to production.

Overall, testing on real devices offers numerous advantages that contribute to the development of high-quality, reliable, and user-friendly applications.