“Sticker SIM” (slimduet), a stick-on overseas SIM, launches (2016, Keitai Watch et al.)

ii2 launched “slimduet”, an ultra-thin overseas SIM that sticks on top of your existing SIM card, as covered by several outlets. It adds an overseas number and data without swapping SIMs.

• 👉 Keitai Watch
• 👉 GPad

※ This coverage reflects the service at the time. We now offer its successor, PANAM eSIM.