whats the difference between priority mail and priority mail express

whats the difference between priority mail and priority mail express lies mainly in the delivery speed and cost. Priority Mail is a more affordable option that typically delivers packages in 1–3 business days, depending on the destination. It includes free tracking and $100 insurance for lost or damaged items. On the other hand, Priority Mail Express is a faster, premium service that guarantees overnight delivery to most U.S. locations, including on weekends and holidays. It comes with a higher price tag but offers the fastest possible delivery within the USPS network.