Can I make calls and send texts with the eSIM?

No. siEmanko! plans are data only, with no phone number. Calls and texts stay on your main SIM card, at your operator’s roaming rates.

In practice hardly anyone needs them: calls over WhatsApp, Messenger, FaceTime or Telegram go over the eSIM’s data and are included in the plan, and texts from your bank still reach your Polish number.