Can I Use A 4G SIM In A 3G Phone?

Can I Use A 4G SIM In A 3G Phone?

One of the questions people get to ask especially  by mobile users who are new to 4G is whether it is possible to use a 4G SIM in a 3G phone.

Yes; it is possible, but you will not get a 4G connection. If your network operator offers 3G and 2G networks, the SIM will lock on to either of those for calls and data.


To be able to use a 4G internet connection, you need to put your 4G SIM card in a compatible 4G smartphone. To understand 4G compatibility please review your phone specifications. Do good to ask the marketer whether it's a 4G sim to be on a safe side.

If you have any questions about 4G that have not been answered in any of the above articles, do ask using the comment form below. I will respond with an answer. Don’t forget to share this article with your circle of friends and network.