Amazon SNS FIFO versus Amazon Kinesis Data Streams

29 Oct 2025

Learn how Amazon SNS FIFO differs from Amazon Kinesis Data Streams.

	Amazon SNS FIFO	Amazon Kinesis Data Streams
Scaling	3000 msg/sec (batch write) or 10 MB per second	1 MB or 1000 msg/sec per shard; up to 500 shards; you need to manually add/remove shards
Max. message size	256 KB	1 MB
Persistence	no	up to 365 days
Replication	Multi-AZ	Multi-AZ
Order guarantee	yes	within a shard
Delivery guarantee	exactly-once possible	at least once
Pricing	per message	per shard hour
Protocols	AWS Rest API	AWS Rest API
AWS Integrations	SQS FIFO	Lambda
License	AWS only	AWS only
Encryption at rest	yes	yes
Encryption in transit	yes	yes

Further reading