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Refurbished Unlocked Phones

Buy an unlocked phone for sale from Back Market if you want an affordable unlocked phone with a 1-year warranty!

I need a phone that works with ...

Our very best refurbished Unlocked Phones:

iPhone X 256GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone X 256GB - Space Gray - Fully unlocked (GSM & CDMA)

Works with:

43% discount
Warranty: 12 months

Condition: Fair
6 oz of e-waste saved


Average of 0 reviews from the past 6 months.

That's according to Kirsten B. a tiny pain chip was the only issue. It was in great condition! Today

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4 products

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    The average price is $323.00
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Searches so popular -  you can't sit with them

Wow, these are some really cheap unlocked phones!

At Back Market, our deals on unlocked phones are so fresh, they make breath mints look stale! (Okay that’s kind of a weird hyperbole, but you get it.) Buying a refurbished unlocked phone is a much better value than buying a new unlocked phone, and thanks to our warranty, you can be sure you’re not losing out on quality either. :) Now that’s what we call a win-win!

Looking for a GSM unlocked phone?

If you came here looking for a phone that's GSM unlocked, that’s awesome! Just a tip: Make sure that the phone is unlocked for the AT&T and T-Mobile networks. These are both GSM networks, which means they use the same kind of technology to broadcast their cell signal. If the phone is able to work on both these networks, it should have the capabilities to work almost anywhere in the world. But be aware that an unlocked GSM phone may not work on CDMA carriers like Verizon or Spectrum.

Why is Back Market the best place to buy an unlocked cell phone?

We’ll shout it from the rooftops: Our warranties! Thanks to a minimum 1-year warranty, you can rest assured that you’re getting a safe, sure-fire deal on your unlocked phone! Have doubts or questions? Hopes, fears or dreams? Check out this article to find out how to activate your unlocked cell phone. (We can’t help you with your hopes and dreams, unless your hope is getting the unlocked phone of your dreams—then we can absolutely help!)

How much storage space do you need in an unlocked phone?

Good question! Storage for your unlocked phone really depends on the user. A light user may not need more than 32GB or 64GB, but if you're an avid traveler and like to take lots of photos of your wild adventures, you may need an unlocked phone with 128GB or 256GB of storage space.

Unlocked phones come in different colors!

The colors, the colors! This is probably a given, but yes, you can buy an unlocked phone in just about any color you can imagine. The unlocked version of every phone is usually offered in the same exact colors as the version that you can buy from your carrier. Woohoo!