Savings Plans are similar to RIs in that they both offer a lower-cost pricing solution when using a service like E2, however the Savings Plan adds some more flexibility. With SP you can reduce costs by committing to using compute services consistently instead of configuring Instance-specific. SP allows you to choose the Instance types that best suit your needs at low cost without having to exchange or change much.
| Comparing Savings Plans and RIs | Compute Savings Plans | EC2 Instance Savings Plans | Convertible RIs* | Standard RIs |
|---|---|---|---|---|
| Savings compared to On-Demand | Up to 66% | Up to 72% | Up to 66% | Up to 72% |
| Lower prices with payment commitments | ✓ | ✓ | — | — |
| Automatically apply cost savings to all Instances belonging to the same family | ✓ | — | ✓ | — |
| Automatically apply cost savings to all Instance sizes | ✓ | ✓ | ✓ | ✓ |
| Automatically apply cost savings to all operating systems and all Instance tenancy types | ✓ | ✓ | ✓ | ✓ |
| Automatically apply cost savings to Amazon ECS using Fargate | ✓ | — | — | — |
| Automatically apply cost savings when using Lambda services | ✓ | — | — | — |
| Automatically apply cost savings across all AWS Regions | ✓ | — | — | — |
| Option to apply cost savings from 1 to 3 years | ✓ | ✓ | ✓ | ✓ |