How to: Device Farm Gotchas and Limitations
- ❗Devices don't have a SIM card and therefore can‘t be used for testing SIM card-related features.
- 🔸Device Farm supports testing for most popular languages/frameworks, but not for all. An actual list of supported frameworks and languages is presented on [this page](http://docs.aws.amazon.com/devicefarm/latest/developerguide/test-types-overview.html).
- 🔸The API and CLI for Device Farm is quite a low level and may require developing additional tools or scripts on top of it.
- 🔸AWS provide several tools and plugins for Device Farm, however, it doesn‘t cover all cases or platforms. It may require developing specific tools or plugins to support specific requirements.
- ❗In general, Device Farm doesn‘t have Android devices from Chinese companies like Huawei, Meizu, Lenovo, etc. An actual list of supported devices located [here](https://aws.amazon.com/device-farm/device-list/).
- 🔸Device availability is uneven. It depends on several factors including device popularity. Usually, more modern devices see higher demand, thus the waiting time for them will be higher compared to relatively old devices.

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