SenseDeep provides both standard AWS DynamoDB metrics and enhanced single-table metrics.
The DynamoDB standard metrics displays overview metrics and operation details for a whole DynamoDB table. These metrics come from the standard AWS CloudWatch DynamoDB metrics.
For a quick overview, read SenseDeep DynamoDB Metrics.
DynamoDB Single-table designs are more complex and require per entity/model performance monitoring and metrics. Traditional monitoring covers table level and operation level metrics only. What is missing is the ability to see single-table entities and their performance and load on the database.