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Refurbished Unlocked GSM Phones

Our very best refurbished Unlocked GSM Phones:

iPhone 11 64GB - Black - Fully unlocked (GSM & CDMA)

Works with:
AT&T
T-Mobile
Verizon
iPhone 11 64GB - Black - Fully unlocked (GSM & CDMA)
$305.16
$499.00
38% less than brand new
Warranty: 12 months
Grade: Fair
Refurbished tech can help reduce e-waste, more than you think.
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4.3/5

Average of 20,385 reviews from the past 6 months.

That's according to Caxton O. Solid phone,just as described.Couldn't hope for anything better. Today

All items

920 products
Bestseller
iPhone XR

iPhone XR

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$210.67
$349.00
Bestseller
iPhone SE (2020)

iPhone SE (2020)

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$157.87
$249.00
Bestseller
iPhone 11

iPhone 11

64 GB - Purple - Unlocked
Warranty: 12 months Starting from
$303.36
$499.00
Bestseller
Galaxy A01

Galaxy A01

16 GB - Black - Unlocked
Warranty: 12 months Starting from
$82.00
$114.00
iPhone 11 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$305.16
$499.00
iPhone XR 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone XR

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$210.67
$349.00
Galaxy S10 128GB - Prism Black - Fully unlocked (GSM & CDMA)

Galaxy S10

128 GB - Prism Black - Unlocked
Warranty: 12 months Starting from
$146.90
$669.00
iPhone SE (2020) 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$157.87
$249.00
iPhone 8 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone 8

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$112.18
$269.00
iPhone 11 64GB - Purple - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - Purple - Unlocked
Warranty: 12 months Starting from
$303.36
$499.00
iPhone 11 128GB - Black - Fully unlocked (GSM & CDMA)

iPhone 11

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$350.00
$549.00
iPhone XS 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone XS

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$224.53
$579.00
Galaxy S10e 128GB - Prism Black - Fully unlocked (GSM & CDMA)

Galaxy S10e

128 GB - Prism Black - Unlocked
Warranty: 12 months Starting from
$122.01
$459.00
iPhone 11 64GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$305.00
$499.00
iPhone X 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone X

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$210.68
$449.00
iPhone X 256GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone X

256 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$215.00
$419.00
iPhone XR 64GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone XR

64 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$210.16
$349.00
iPhone 11 64GB - White - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - White - Unlocked
Warranty: 12 months Starting from
$306.72
$499.00
iPhone 12 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone 12

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$431.27
$699.00
Galaxy S10 Plus 128GB - Prism Black - Fully unlocked (GSM & CDMA)

Galaxy S10 Plus

128 GB - Prism Black - Unlocked
Warranty: 12 months Starting from
$204.00
$719.00
iPhone XS 256GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone XS

256 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$264.76
$469.00
iPhone SE (2020) 64GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

64 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$149.33
$249.00
iPhone 12 64GB - Blue - Fully unlocked (GSM & CDMA)

iPhone 12

64 GB - Blue - Unlocked
Warranty: 12 months Starting from
$414.02
$699.00
iPhone 7 32GB - Black - Fully unlocked (GSM & CDMA)

iPhone 7

32 GB - Black - Unlocked
Warranty: 12 months Starting from
$92.44
$179.00
iPhone SE (2020) 128GB - Black - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$179.00
$299.00
iPhone 11 64GB - Green - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - Green - Unlocked
Warranty: 12 months Starting from
$309.97
$499.00
iPhone XR 64GB - White - Fully unlocked (GSM & CDMA)

iPhone XR

64 GB - White - Unlocked
Warranty: 12 months Starting from
$211.65
$349.00
Google Pixel 5 128GB - Black - Fully unlocked (GSM & CDMA)

Google Pixel 5

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$253.53
$699.00
iPhone XR 128GB - Black - Fully unlocked (GSM & CDMA)

iPhone XR

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$242.09
$399.00
iPhone 11 128GB - Purple - Fully unlocked (GSM & CDMA)

iPhone 11

128 GB - Purple - Unlocked
Warranty: 12 months Starting from
$357.00
$549.00
iPhone 11 128GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone 11

128 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$342.00
$549.00
iPhone SE (2020) 64GB - White - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

64 GB - White - Unlocked
Warranty: 12 months Starting from
$151.42
$249.00
iPhone 12 mini 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone 12 mini

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$385.20
$599.00
iPhone 12 128GB - Blue - Fully unlocked (GSM & CDMA)

iPhone 12

128 GB - Blue - Unlocked
Warranty: 12 months Starting from
$517.84
$749.00

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Verified customer reviews for Refurbished Unlocked GSM Phones

4.3/5

Average of 20,385 reviews from the past 6 months.

4-5 stars
75%
3-4 stars
13%
2-3 stars
7%
1-2 stars
5%
Robert R. Bought: Google Pixel 6 Pro T-Mobile 3 days ago
5/5
Wow! I had my hesitation thinking the price was too good to be true, but I never should have procrastinated. I ordered a Google Pixel 6 Pro in Good condition and no one, including myself, can believe it is refurbished. I am sold on the phone itself, seeing it as a vast improvement over my former ...

Value for money

Overall performance

Appearance

Accessories

Battery

Lens & Camera

Packaging and cleanliness

Shipping

 
Karen l. G. Bought: Galaxy S10 1 week ago
5/5
I really like my new phone. I bought this Galaxy S10 because I needed it for my new hearing aids. After spending all that money on them, I couldn't afford a 500.00 phone. I was able to get all my apps from my other phone which was a Samsung. Transferred and working. I am still learning the ins and...

Value for money

Overall performance

Appearance

Accessories

Battery

Lens & Camera

Packaging and cleanliness

Shipping

 
Isaiah P. Bought: Google Pixel 4a Verizon 3 weeks ago
4.5/5
This phone is good and it feels brand new! Even the battery 🔋 is good too because the battery doesn't go down super fast compared to the Google Pixel 4. The only con to this phone would be that, it takes a little while to charge which is more based on the length of the charger not the phone itself....

Value for money

Overall performance

Appearance

Accessories

Battery

Lens & Camera

Packaging and cleanliness

Shipping

 
Josh M. Bought: iPhone 12 AT&T 1 month ago
5/5
I was a but skeptical about ordering from second-hand retailers initially but my first purchase here completely changed my opinion. I ordered an iPhone 12 of “Excellent” quality and it was nothing short of excellent. It delivered a day early in safe packaging. The phone itself appeared to be straigh...

Value for money

Overall performance

Appearance

Accessories

Battery

Lens & Camera

Packaging and cleanliness

Shipping

 
Jeremy J. Bought: Galaxy A50 1 month ago
4.8/5
My phone is excellent you could not tell is was refurbished the thing looked brand new not one scratch are blemish it was fully unlocked and took the Sim card from my Blu view 3 I got from simple mobile put the Sim in and it worked like new. The galaxy a50 is everything Samsung says it is. Great ph...

Value for money

Overall performance

Appearance

Accessories

Battery

Lens & Camera

Packaging and cleanliness

Shipping

 
See all reviews

What's the best place to get a GSM unlocked phone?

We believe that Back Market is the best place to get an unlocked GSM phone because our phones are much cheaper than newer editions, yet still have the same quality that you can expect out of the box.

What does it mean if a phone is unlocked for GSM networks?

It's actually pretty simple, since T-Mobile and AT&T use GSM technology to transmit their cell signals, phones that are able to work with both of these carriers are often called GSM unlocked phones. It's also important to mention that GSM unlocked phones are likely to work on foreign carriers, since most international cell providers also use GSM technology to transmit their cell frequencies.

The Best Deals on Unlocked GSM Phones

We don't mean to brag, but we feel we have some of the best deals on unlocked GSM cell phones. Why do we feel this way? Because our phones have been refurbished, they are just a hair more expensive than regular used phones, but come with the same quality as new devices. Pretty cool, huh?

Unlocked GSM smartphones for sale

Be on the lookout for special events and pay attention to the top featured product on each of our categories, these are most often the best deal according to our algorithm!