S3 storage class and price differences

 Amazon S3 offers several storage classes to cater to different data access, resiliency, and cost requirements:

  1. S3 Standard: Designed for frequently accessed data, providing high durability, availability, and performance.
  2. S3 Intelligent-Tiering: Automatically moves data between access tiers based on changing access patterns, optimizing for cost.
  3. S3 Standard-IA (Infrequent Access): Designed for infrequently accessed data, with lower storage costs but higher retrieval costs.
  4. S3 One Zone-IA: Similar to S3 Standard-IA, but data is stored in a single Availability Zone, with lower storage costs.
  5. S3 Glacier Flexible Retrieval: Designed for long-term data archiving, with the ability to retrieve data within a few minutes to a few hours.
  6. S3 Glacier Deep Archive: Designed for long-term data archiving, with the ability to retrieve data within 12-48 hours, at the lowest cost.

The choice of storage class depends on factors such as data access patterns, durability requirements, and cost optimization. For the most up-to-date information on pricing, limits, availability, and other details, please refer to the official AWS documentation.


The key differences between the various Amazon S3 storage classes are:

  1. Durability and Availability:

    • S3 Standard, S3 Intelligent-Tiering, and S3 Standard-IA offer 99.999999999% (11 9's) durability and 99.99% availability.
    • S3 One Zone-IA offers 99.999999999% (11 9's) durability, but only 99.5% availability as it stores data in a single Availability Zone.
    • S3 Glacier Flexible Retrieval and S3 Glacier Deep Archive offer 99.999999999% (11 9's) durability, but lower availability as they are designed for long-term archival.

  2. Retrieval Time and Cost:

    • S3 Standard, S3 Intelligent-Tiering, and S3 One Zone-IA offer immediate data retrieval.
    • S3 Standard-IA has a slightly higher retrieval cost compared to S3 Standard.
    • S3 Glacier Flexible Retrieval allows retrieval within minutes to hours, with a higher retrieval cost.
    • S3 Glacier Deep Archive allows retrieval within 12-48 hours, with the lowest retrieval cost.

  3. Metadata Overhead:

    • S3 Glacier Flexible Retrieval and S3 Glacier Deep Archive require additional metadata storage, which incurs additional costs.


The main price differences between the various Amazon S3 storage classes are as follows:

  1. S3 Standard: This is the default and most expensive storage class, designed for frequently accessed data.
  2. S3 Intelligent-Tiering: This automatically moves data between access tiers based on changing access patterns, optimizing for cost.
  3. S3 Standard-IA (Infrequent Access): This is designed for infrequently accessed data, with lower storage costs but higher retrieval costs.
  4. S3 One Zone-IA: Similar to S3 Standard-IA, data is stored in a single Availability Zone, with lower storage costs.
  5. S3 Glacier Flexible Retrieval: Designed for long-term data archiving, with the ability to retrieve data within a few minutes to a few hours.
  6. S3 Glacier Deep Archive: Designed for long-term data archiving, with the ability to retrieve data within 12-48 hours, at the lowest cost.

The choice of storage class depends on factors such as data access patterns, durability requirements, and cost optimization. For the most up-to-date information on pricing, limits, availability, and other details, please refer to the official AWS documentation.

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