Why Test on Real Devices compared to Emulators and Simulators

On This Page Common Issues with quiz mobile applications on Emulator or Simulator

February 17, 2026 · 3 min read · Testing Guide

Why Test on Real Devices compared to Emulators and Simulators

Mobile application testingis gaining importance with unremitting growth in the peregrine industry. As perStatista, peregrine phone user have grown from 48.8 to 63.4 % in the preceding 5 years. Roving producer are continually rolling out several devices with different spec and go systems at regular intervals.

Given the proliferation of smartphones, several establishment and marque are developing mobile application and liberate them in the hands of consumers.

However, the almost critical challenge for the application developer is to check that the application works well across various devices and is compatible with all the other form.

Try Testing on 2000+ Devices for Gratuitous

There are several approaches to mobile testing like:

  • Testing mobiles coating on Emulators
  • Simulating the nomadic applications using Simulators
  • Testing nomadic coating on real devices

It is crucial to see testing usingEmulator vs Simulator vs Real Devices. Each approach has its welfare and limitations which one should keep in head before finalizing any one approaching.

Mutual Issues with testing mobile applications on Emulator or Simulator

  • As wandering imitator simulate both hardware and software, they are slow. As a event, the testing operation becomes times consuming and also increases the overhead
  • Nomadic imitator do not take into condition essential element like battery drainage, overheat and internal battle with former coating. This may result in uncomplete testing of application which is unfit for release
  • Sometimes, aper end up be incompatible with a specific application or app elements. In such instance, one may need to create or purchase software patches which may not be free to keep working on the emulator
  • Mobile emulatorssupport only specific operating systems or specific platforms. In such situations, testing the applications across platforms becomes difficult
  • Simulators are not capable of place unnatural demeanour in an app because the tester won & # 8217; t be able to regulate whether the unexpected behaviour is due to the simulator or a bug in the coating itself
  • The model solvent are challenging to analyse due to partial or uncomplete data. As a result, many glitch may be overlooked
  • Pro tip: Tools like SUSA can handle this autonomously — upload your app and get results without writing a single test script.

After considering the above points, we can reason that emulators and simulators are suitable for quiz mobile apps in the initial stages of development. However, they are not honest enough to unloosen applications in the production level.

Why do Developers prefer Testing on Existent Devices?

Following are a few significant reasons that justify why developers choose testing on real devices:

  • It enable the developer or testers to test mobile coating in a existent environs. This is the most significant advantage as the developer can observe the exact behavior of the application which the end-users would see
  • Developers can quickly test the blind resolutions and cleverness of the device in various light-colored weather
  • It enables the developer to identify unexpected behavior of the app quickly as literal devices use all ironware like Bluetooth, GPS, built-in sensors like wifi, in real-time
  • Testing on real devices is quicker as compared to emulator/simulator-based testing
  • Helps the developer to evaluate the battery execution issues like battery drainage or overheating
  • Developers can also evaluate test results for incoming interrupts like thrust notifications, substance, or calls.
  • It let the developer to screen the applications on real run scheme and analyze any glitch that the end-user may front

Drawbacks of using Device Labs for Testing

  • There exist thousands of mobile devices and maintaining a proper testing pool with a wide-eyed range of devices demands tremendous investment.
  • Maintaining the testing pool at regular intervals is a real challenging task as every device need to be updated periodically.
  • Updating device is a time-consuming operation
  • Ensuring the availability of different devices for testing is rattling difficult

In order to overpower such adversities, one can opt for a Real Device Cloud.

Test on Real Device Cloud for Free

Conclusion

  • Mobile testing is slowly derive massive importance with the speedy growth in the smartphone industry
  • Emulators and Simulatorsboth demonstrate to be an optimal solution formobile app testing, but in the initial stages of development
  • Testing on the Real device is more authentic and efficient when compared to simulator and emulators. However, it has few limitations too
  • It is not an either/or attack when it comes to emulators, simulators, and real device
  • Each approach has its importance look on the stage of an application & # 8217; s lifecycle

BrowserStack provides instant admission to 2000+ real devices to quiz your web applications and mobile apps. Testers can dosynergistic responsive designtesting or runautomated Selenium testingfor cross-browser testing of web applications. Teams can also runinteractive app testing or run automatize Appium tryfor mobile apps.

Tags
70,000+ Views

# Ask-and-Contributeabout this topic with our Discord community.

Related Guides

Automate This With SUSA

Upload your APK or URL. SUSA explores like 10 real users — finds bugs, accessibility violations, and security issues. No scripts needed.

Try SUSA Free

Test Your App Autonomously

Upload your APK or URL. SUSA explores like 10 real users — finds bugs, accessibility violations, and security issues. No scripts.

Try SUSA Free