KnowRoaming

[bylo]

Originally Posted by hrgajek

Do I understand it right, you fix a sticker on your existing SIM-Card.
This "piggypack" would be a little bit "thicker" than the original SIM-Card. How Do you insert this in state of the art smartphones with Micro or Nano-SIM-Cards?

Indeed it's a sticker that intercepts electrical signals before they go to the regular SIM. If you're in your "home" country it passes everything through. Otherwise it "takes over" and functions as a second SIM.

Knowroaming claims that this sticker will fit over regular, micro and nano SIMs. They also claim that their latest sticker is 30% thinner than previous versions and was designed to fit into SIM card holders and frames. (See KnowRoaming announces unlimited data plans in 55 countries, 30% thinner sticker.)

I don't have any trips planned outside Canada for the rest of the year so I'm in no hurry to buy and test their SIM. But unless I see bad reviews I intend to buy one next year.