It’s super easy to jump from one to another when you own an unlocked phone, especially if you're looking to shave your monthly cost with any of the best cheap ... GSM carriers like AT&T and T ...

MetroPCS unveiled its Bring Your Own Phone program, which lets you use your unlocked GSM phone. I’m PCMag ... and before that I covered mobile, smart home, and wearable technology for PCMag ...

Luckily, times have changed, and it’s now possible to get a great unlocked Android phone for less ... high-end devices, budget smartphones seldom feature cutting-edge mobile technologies ...

But unlocked GSM phones from AT&T and T-Mobile will work on each other's networks ... If you want to do this on the cheap, make sure you turn off all the data functions on the iPhone, and you ...

This is an international device NO WARRANTY - Factory Unlocked This phone is compatible only with T-Mobile Mint - Tello - Metro in USA Market and any GSM provider in Latin America ...

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. For example, you can't unlock ...

GSM unlocked cell phones use the Global System for Mobile ... but you honestly couldn’t ask for much more in a budget phone. What we like: Works with both GSM and CDMA. Decent 12MP rear camera ...

Welcome to the 411, my column answering all your questions about cell phones and cell ... you will be able to use a prepaid GSM service with a GSM unlocked phone like the Samsung Galaxy S II.

The first, GSM, stands for “Global System for Mobiles” and is used primarily by T-Mobile and AT&T ... Thankfully, most phones work with both when unlocked, but some notable brands only ...

Not every unlocked phone will work on every network. The cell towers for each carrier operate on different bands. Many LTE bands are shared across the carriers, though there are also GSM and CDMA ...