<br />

Test Lablets you test your app on a wide variety of different devices and Android versions. There are a few ways to see which devices are available:

- **Firebaseconsole:** If you're running tests from theFirebaseconsole, you can see a list of available devices during the**Select dimensions** step of the**Run a test**workflow.

- **gcloud CLI:**To see a list of available devices from the Google Cloud CLI, use the following command:

  ```
  gcloud firebase test android models list
  ```
- **Google APIs Explorer:** You can even look up the devices directly, without a Firebase project or the gcloud CLI, using the[Google APIs Explorer](https://developers.google.com/apis-explorer/#p/testing/v1/testing.testEnvironmentCatalog.get?environmentType=ANDROID).

## Device stability indicator

Test Labindicates devices that are experiencing degraded stability in theFirebaseconsole and Google Cloud CLI with a**Reduced Stability** indicator. Devices that have been labeled with the**Reduced Stability**indicator have returned higher rates of inconclusive results for a prolonged period of 30 days or more. This feature helps you better choose devices for your use case by letting you know if the stability of a test device is degraded.

### View device stability in the Firebase console

You can view device stability in theFirebaseconsole when you're setting up a new test for a specific device.

To view device stability, follow these instructions:

1. Open the Test Lab page in theFirebaseconsole.

   | **Note:** If this is your first time running a test, follow the onboarding instructions on the mainTest Labpage in theFirebaseconsole.
2. Select**Run a test**and then select a test type.

3. Upload your app binary.

4. On the Select dimensions step, click**Customize**.

5. Choose one or more devices to run your test on. Depending on device stability, you might see a**Reduced Stability**label next to the selected devices.

6. Run your test.

### View device stability in the Google Cloud CLI

You can view device stability in the gcloud CLI for a specific device when you're setting up a new test.

To view device stability, follow these instructions:

1. Download the latest[Google Cloud SDK](https://cloud.google.com/sdk/docs/install-sdk#installing_the_latest_version)and follow the instructions.

2. Run one of these commands:`gcloud firebase test android models list`or`gcloud firebase test android models describe MODEL_ID`

If a test device is experiencing degraded stability, you can see the`reduced_stability`tag in the TAGS column listing the versions that are affected.

## Device capacity

Test Labprovides aggregated mobile device capacity information through theFirebaseconsole andFirebaseCLI.*Device capacity*is the aggregated number of online devices in Google's mobile device lab. This feature helps you ensure that there are enough devices in our device lab to run your tests more efficiently. Device capacity is measured as High, Medium, and Low.
| **Note:** Device capacity does not reflect real-time factors like the length of the pending test queue at a moment in time, real-time traffic on the devices, or the state of the devices. For physical devices, the number is the average of online devices in the last 30 days.

Tests running on any device capacity level may take longer due to the following factors:

- Traffic, which affects when the test starts. To check if there are reported outages or failures, see the[Firebase status dashboard](https://status.firebase.google.com/summary).
- Device or infrastructure failures, which can happen at any time and affect how long the test takes to run.

The following table describes the types of device capacity and provides recommendations about when to use each capacity type:

|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| **Capacity**    | **Description**                                                                                                                                         | **Recommended use**                                                                                                                                                                                                                                     |
| High capacity   | TheTest Labdevice catalog contains many devices.                                                                                                        | Use when you are running a large number of tests.                                                                                                                                                                                                       |
| Medium capacity | TheTest Labdevice catalog contains a moderate number of devices.                                                                                        | This capacity level is suitable for running most of your tests.                                                                                                                                                                                         |
| Low capacity    | TheTest Labdevice catalog contains few devices. While deprecated devices belong to the low-capacity group, not all low-capacity devices are deprecated. | Use when you need to run a test on a specific device model and version. These tests are not suitable for test sharding. Due to low capacity, tests might take a long time to finish, especially if you invoke a large number of tests at the same time. |

Note: Android virtual devices have variable capacity. The number of pre-booted virtual devices is based on typical recent usage, and can auto scale larger during periods of heavier usage.

### View device capacity in theFirebaseconsole

You can view device capacity in theFirebaseconsole for a specific device when you're setting up a new test.

To view device capacity, follow these instructions:

1. Open theTest Labpage in theFirebaseconsole.

   | **Note:** If this is your first time running a test, follow the onboarding instructions on the mainTest Labpage in theFirebaseconsole.
2. Select**Run a test**and then select a test type.

3. Upload your app binary.

4. On the Select dimensions step, click**Customize**.

5. (Optional) To filter devices by capacity level, follow these steps:

   1. Click the**Filter**icon.

   2. Select**Capacity**.

   3. Click the capacity level you want to filter by:**Medium** or**High**. To filter out any low-capacity devices, filter by both Medium and High.

   4. Click**Apply**.

6. Choose one or more devices to run your test on. Depending on device capacity, you might see a**Medium** or**High**label next to the selected devices.

7. Run your test.

### View device capacity in the Google Cloud CLI

You can view device capacity in the gcloud CLI for a specific device when you're setting up a new test.

To view device capacity, follow these instructions:

1. Download the latest[Google Cloud SDK](https://cloud.google.com/sdk/docs/install-sdk#installing_the_latest_version)and follow the instructions. The version must be 417.0.0 or greater.
2. Run one of these commands:  
   `gcloud firebase test android list-device-capacities`  
   or  
   `gcloud firebase test android models describe `<var translate="no">MODEL_ID</var>

The output includes device capacity, model ID, model name, and OS version ID.

## Deprecated devices and versions

Deprecated devices are available for at least one month before being removed from theTest Labdevice catalog. Once a device is removed,Test Labno longer runs test requests targeted at the device; those requests are marked as`Skipped`.

#### Deprecated devices

| Manufacturer |         Model Name         | Device Form |      Device ID      | Planned Removal Date |     Recommended Replacement      |
|--------------|----------------------------|-------------|---------------------|----------------------|----------------------------------|
| Samsung      | Galaxy Tab S3              | Physical    | gts3lltevzw/28      | 2024-04-14           |
| Google       | Google TV Amati            | Virtual     | AmatiTvEmulator/29  | ~~2025-05-31~~ TBD   |
| Google       | Google TV                  | Virtual     | GoogleTvEmulator/30 | ~~2025-05-31~~ TBD   | GoogleTv.arm/31 (available soon) |
| Samsung      | Samsung Galaxy Note 9      | Physical    | crownqlteue/29      | 2025-11-06           |
| OnePlus      | OnePlus 10T                | Physical    | OP5552L1/35         | 2025-11-15           |
| Samsung      | Samsung Galaxy Galaxy A02s | Physical    | a02q/31             | 2025-11-16           |
| Samsung      | Samsung Galaxy Galaxy A03s | Physical    | a03s/33             | 2025-11-16           |

| **Note:** If a device is available as a[virtual device](https://firebase.google.com/docs/test-lab/android/avds), the virtual version is still available for testing, even after the physical devices are removed from theTest Labdevice catalog.

## Request a device

If you want to use a device that is not available inTest Lab, you can[submit a request](https://firebase.google.com/support/troubleshooter/test_lab/requestdevice)for a device to be added to the catalog.