The mobile SIM card covers 110 countries including free incoming calls in more than 80.
The initiative is aimed at both leisure and business sectors and enables travellers to top-up online or set up an automatic top-up system.
The replaces the existing SIM in mobile phones and means WAYN members can avoid roaming charges.
Matt Jerwood, director of business development at WAYN.com, said: “WAYN Global SIM will give members flexibility to communicate more readily whilst at home and overseas.
“Knowing you can avoid roaming charges and get local call rates means you can call whomever you want, wherever you are.
“Providing members with easily accessible travel products and services is part of our strategy to offer a more social element to our global communications.”