MetroPCS unveiled its Bring Your Own Phone program, which lets you use your unlocked GSM phone. I’m PCMag’s executive editor of reviews, steering our coverage to make sure we're testing the ...

For years, unlocked phones were almost exclusively GSM. But recently, more smartphones are universal, like the iPhone X, Google Pixel 2 and Moto G6.

There are often very specific rules that you have to follow before you can unlock a phone. For example, the phone can't be reported stolen or missing, needs to have been paid for in full, and might ...

But unlocked GSM phones from AT&T and T-Mobile will work on each other's networks, which makes the use of GSM much more flexible than CDMA. In summary, ...

An unlocked brother to the HTC Touch series phones, the HTC Touch Cruise ($550.00, unlocked; as of 4/9/2009) has an eye-catching design and a gorgeous touch interface.

Two weeks ago we received a deluge of comments complaining about our treatment of Cingular as a carrier with limited phone selection when you could use any unlocked GSM phone on their network. We ...

Where to get a GSM unlocked phone. If you want to use an unlocked GSM phone with the intention of possibly switching to a different GSM network in the future, ...

Some higher-end handsets, like iPhones and Pixels, support both networks, though most unlocked phones tend to be GSM-only. OnePlus phones, like the OnePlus 7T shown here, are technically GSM-only ...

Nokia has begun to aggressively market its premium N series of GSM network cellular phones on an unlocked basis to online retailers, independent wireless specialists and national and regional CE ...

I currently use T-mobile To Go, and am looking for a new phone. Previously on Ars someone told me i could use any unlocked GSM phone with my Sim and it would work. <BR><BR>I found a nice phone I ...

While an unlocked cell phone can work on any mobile carrier's network, unlocking a phone does not switch it between radio communication technologies like GSM or CDMA.