If you are planning on travelling internationally, whether for work or pleasure, an International SIM card is something you should pack. If you're unsure whether you need one, this post will go through four questions to help you decide.

Would my International IoT SIM card function in my destination country? In many cases, cards are region-locked, meaning they will only operate in a particular country. It's essential to do some homework and ensure that the GSM SIM card you buy will function in the countries you visit.

Can I use my phone with a local SIM card in the country I'm visiting? The GSM SIM standard is not unified internationally, as several nations use various frequencies. Cell phones have varying frequency ranges and are thus not universally compatible. You should check the compatibility of your mobile device in the destination country before leaving.

Can I use the International SIM card on my phone? To use their service, certain cell phone companies sell you " locked " phones." In other words, you may only use the SIM card that came with the phone from the same carrier. If you don't unlock your phone, you won't be able to use a SIM card for international usage.

Will I be able to save costs? You may save a lot of money by purchasing an international SIM card. That might be anything from sixty to eighty per cent. Yet many worldwide roaming SIM card providers can only deliver discounts in particular regions of the globe, and their pricing is inconsistent from country to country. Check the pricing page of any potential service provider before signing up.