The iPhone 13 series can simultaneously use two eSIMs, and can store between 8-20 eSIM profiles, although only two lines (one eSIM and one nano-SIM, or two eSIMs) can be active at any given time.
According to official information from Apple, the iPhone 13 series (including the iPhone 13 mini, iPhone 13, iPhone 13 Pro, and iPhone 13 Pro Max) supports Dual SIM functionality using a combination of a nano-SIM and an eSIM, or two eSIMs. This means that the maximum number of eSIMs that can be used simultaneously on an iPhone 13 is two. See the complete iPhone eSIM compatibility list.
It’s worth noting that although you can store up to 8-20 eSIM profiles on your iPhone 13, only two lines can be active at any given time (one eSIM and one nano-SIM, or two eSIMs). The additional stored eSIM profiles can be switched and activated as needed.
I hope this information helps you better understand the eSIM capabilities of the iPhone 13, enabling you to make an informed purchasing decision. If you have any further questions or concerns, please feel free to ask Asian eSIM.