You can't do quadruple esim, but arguably the experience with 4 esims on a single device is much better than carrying 4 sims. "You can store more than one eSIM

You can't do quadruple esim, but arguably the experience with 4 esims on a single device is much better than carrying 4 sims. "You can store more than one eSIM in your iPhone, but you can use only one at a time. To switch eSIMs, tap Settings, tap either Cellular or Mobile Data, and then tap the plan you want to use. Then tap Turn On This Line." [1] On the iPhone 13, you can actually use two esims at the same time. [1] https://support.apple.com/en-us/HT209044 https://support.apple.com/en-us/HT209044