In this informative video, Jason Hunter, a principal solution architect with DynamoDB, explains the key differences between Global Secondary Indexes (GSIs) and Local Secondary Indexes (LSIs) in Amazon DynamoDB. He provides a detailed comparison of their features, use cases, and limitations, helping viewers make informed decisions when choosing between these two types of indexes. Jason uses a practical example with device temperature data to illustrate query patterns and demonstrates why GSIs are generally more flexible and preferred in most scenarios. The video concludes by highlighting the one crucial advantage of LSIs: the ability to perform strongly consistent reads, which is not possible with GSIs. This comprehensive overview equips DynamoDB users with the knowledge to select the most appropriate index type for their specific needs.