Some of the important features of Amazon S3 are as follows:

1. Amazon S3 provides unlimited storage for files.

2. File size in Amazon S3 can vary from 0 Bytes to 5 Terabytes.

3. We have store files in Buckets in Amazon S3.

4. In Amazon S3, names of buckets have to be unique globally.

5. Amazon S3 is Object Based storage.

https://aws.amazon.com/s3/features/#:~:text=S3%20features%20include%20capabilities%20to,storage%20usage%20and%20activity%20trends