Yes, an eSIM would not work without a data plan because your plan needs to include data to connect to a mobile network.
You can install and activate the eSIM in 30-day period after purchase, after which the eSIM will be activated automatically. We recommend activating it a day before leaving for your trip because the process requires an internet connection.
Argonet eSIM activation is instant.
Your eSIM data package starts only when you activate your plan. Installing it does not automatically initiate the data for your eSIM package. Note: Your data plan will be activated automatically 30 days after the purchase, unless it is manually activated through the Argonet app.
Once the validity period is over, your plan and any data that might have been left expires.
You can check all the prices for Argonet eSIM plans here, simply choose the destination that you wish to purchase.