The best reason to use an S3 emulator today is to run apps pulled from APKMirror that no longer support modern Android (API 34+). I recently tested an old version of Temple Run 2 and Angry Birds Star Wars .
The Galaxy S3 represents a specific technical era: Android 4.0.4 Ice Cream Sandwich (upgradable to 4.3 Jelly Bean), a 4.8-inch display, a 720x1280 resolution, and a Quad-core Exynos 4412 processor. Emulating this precise configuration serves several practical purposes: Samsung S3 Emulator
For most developers, a well-configured AVD with Android 4.3 and 1 GB RAM is close enough to the real Galaxy S III for practical purposes. The best reason to use an S3 emulator