You are tasked with assembling a mobile farm for the testing department on real devices. What is the minimal basic set for iOS and Android? How would you approach device selection?

To select the minimal basic set of devices for a mobile farm, several factors need to be considered:

• Popularity of devices and OS: choose devices with the most common versions of iOS and Android to cover the majority of users.
• Different manufacturers and models: for Android, it is important to have devices from various manufacturers (Samsung, Xiaomi, Huawei, etc.) with different OS versions and specifications.
• Different screen sizes and resolutions: to test interface adaptability.
• Devices with varying performance: from budget to flagship, to identify performance issues.

For example, for iOS, you can take the latest model iPhone and one or two older models (e.g., iPhone 12 and iPhone 8), for Android — Samsung Galaxy mid-range, Xiaomi, and Google Pixel with different Android versions.

It is also important to consider the budget and device support capabilities.