To check the storage on your Firestick, you can follow these steps:

1. Go to the home screen of your Firestick by pressing the Home button on your remote.

2. Navigate to the Settings option at the top of the screen and select it.

3. Scroll to the right and select My Fire TV.

4. Select About. 5. Under the Storage section, you will see the amount of available storage on your Firestick.

Alternatively, you can also check the storage on your Firestick by installing a file manager app from the Amazon Appstore, such as ES File Explorer. This app will allow you to view the storage space and manage files on your Firestick.