Start with Autoscale for any new container. You can always switch to Manual later.
: Transferring data into DocumentDB from the internet is free. However, data transfer out of DocumentDB to other regions or the internet incurs standard AWS data transfer charges. Comparing Pricing Models DocumentDB Detail Replication Data is durable across 3 AZs; billed for 1 copy. Billing Unit Per-second (10-minute minimum). Max Document Size Up to 16 MB per BSON document. Index Limits Up to 64 indexes per collection. Tips for Cost Management documentdb pricing
Pricing examples based on US East region as of early 2025. Always check the Azure Pricing Calculator for current rates in your region. Start with Autoscale for any new container