eSIM vs a physical SIM on a non-PTA phone
On a non-PTA phone the two do different jobs. Here is the honest comparison, so you know which one handles what.
Updated · FirstSIM
Side by side
| Data eSIM | Local SIM | |
|---|---|---|
| Mobile internet | Yes, on Jazz | Stops once the phone is blocked for being unregistered |
| Calls and SMS | No — data only | Yes, while the phone is served |
| WhatsApp on your number | Yes, over the eSIM data | Yes |
| Bank OTP by SMS | No — those go to your number | Yes, while served |
| Setup | Two minutes, online, no CNIC | A shop and biometric verification |
The setup most people end up with
Keep your existing number on any SIM and phone you can — for calls, SMS and bank codes — and put the data eSIM on the non-PTA phone for internet. WhatsApp moves with your number, so it keeps working on the eSIM data.
What the eSIM does not change
It does not register the phone or affect its PTA status. It gives the phone mobile data, and that is all it claims to do.
FirstSIM is a Pakistan eSIM for non-PTA phones — delivered in minutes, from Rs 399.
Quick answers
Can a data eSIM receive SMS or OTP codes?
No. It is data only. SMS and bank codes go to your normal number.
Does WhatsApp work on a data eSIM?
Yes. WhatsApp keeps your own number and uses the eSIM only for internet.