You may have heard of the iPPeel, a new device the puts a cell phone on the back of your iPhone. It’s designed to hold 2 extra SIM cards for people who travel a lot and want to avoid roaming charges by easily switching from one carrier to the next.
The thing is, there’s an easier (cheaper!) way. Unlocked cell phones work in a very similar way, you just have to change the SIM card yourself.
Unlocked cell phones are phones whose software has been unlocked so that you can use the SIM card of any network with the phone (Sprint is the only major American cell phone company that does not rely on SIM cards, although an unlocked cell phone originally sold by Sprint works on everything).
So, the upside to unlocked cell phones is that you don’t have to pay $70, and you can make calls with your own phone and phonebook without having a silly looking extra phone strapped to the back that elicits silly jokes.
The downside is that you have to keep track of SIM cards and physically switch them in and out of your unlocked cell phone, rather than having them ready to go, as the iPPeel lets you have two extra at all times. Of course, if you’re travelling so much you actually need such a device, there may be a better chance that two isn’t enough.
In any case, unlocked cell phones may be a better option for many people.