Because eSIMs work entirely digitally, there's no physical limit, like a SIM tray, to how many plans you can install on your device. However, the specific number of eSIMs you can have active depends on your device maker and storage capacity.

For iPhones, you can install at least five eSIMs, but only two can be active simultaneously. Keep in mind, this may differ based on your country and carrier (for example iPhones in mainland China don't support eSIMs.)

If you're using a Samsung, Google, Huawei, or another Android device, the number of eSIMs you can install and have active varies. Generally, most allow for five to seven eSIMs, with one active at a time.