Question about Digitec iot Data Flat

Yes. You can use it as every other sim. Except for regular voice calls.

I should add that as it's a prepaid card, only the balance on the card can be stolen. So there's no need to enter a pin code. What's more, you can occasionally use a higher speed, for video for example.

Merci!

There's a phone number with this card, and you can phone to that number, but not from that number. I suppose that should be enough for WhatsApp. In my opinion, it's worth a try, even with the cheapest version.