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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)
$289.98
$499.00
41% less than brand new
Warranty: 12 months
Grade: Fair
7 oz of e-waste prevented
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4.3/5

Average of 21,469 reviews from the past 6 months.

That's according to Joao S. Everything as i expected. Phone working perfectly, any problem so Today

All items

871 products
Bestseller
iPhone XR

iPhone XR

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$193.33
$349.00
Bestseller
iPhone SE (2020)

iPhone SE (2020)

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$164.77
$249.00
Bestseller
iPhone 11

iPhone 11

64 GB - Purple - Unlocked
Warranty: 12 months Starting from
$299.99
$499.00
Bestseller
Galaxy J3 (2018)

Galaxy J3 (2018)

16 GB - Black - Unlocked
Warranty: 12 months Starting from
$54.99
$150.00
iPhone 11 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$289.98
iPhone XR 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone XR

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$193.33
iPhone 8 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone 8

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$127.02
Galaxy S10 128GB - Prism Black - Fully unlocked (GSM & CDMA)

Galaxy S10

128 GB - Prism Black - Unlocked
Warranty: 12 months Starting from
$166.94
iPhone 11 64GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$302.00
iPhone SE (2020) 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$164.77
iPhone 11 64GB - Purple - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - Purple - Unlocked
Warranty: 12 months Starting from
$299.99
iPhone 11 128GB - Black - Fully unlocked (GSM & CDMA)

iPhone 11

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$349.98
Galaxy S10e 128GB - Prism Black - Fully unlocked (GSM & CDMA)

Galaxy S10e

128 GB - Prism Black - Unlocked
Warranty: 12 months Starting from
$131.87
iPhone XS 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone XS

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$215.99
iPhone 11 64GB - White - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - White - Unlocked
Warranty: 12 months Starting from
$299.99
iPhone 7 32GB - Black - Fully unlocked (GSM & CDMA)

iPhone 7

32 GB - Black - Unlocked
Warranty: 12 months Starting from
$95.00
iPhone 12 64GB - Blue - Fully unlocked (GSM & CDMA)

iPhone 12

64 GB - Blue - Unlocked
Warranty: 12 months Starting from
$426.05
iPhone XR 64GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone XR

64 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$213.31
iPhone X 256GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone X

256 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$221.95
Google Pixel 5 128GB - Black - Fully unlocked (GSM & CDMA)

Google Pixel 5

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$259.13
iPhone XR 128GB - Black - Fully unlocked (GSM & CDMA)

iPhone XR

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$230.99
iPhone 11 64GB - Green - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - Green - Unlocked
Warranty: 12 months Starting from
$299.99
iPhone SE (2020) 128GB - Black - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$187.00
Galaxy S10 Plus 128GB - Prism Black - Fully unlocked (GSM & CDMA)

Galaxy S10 Plus

128 GB - Prism Black - Unlocked
Warranty: 12 months Starting from
$200.00
iPhone XR 64GB - White - Fully unlocked (GSM & CDMA)

iPhone XR

64 GB - White - Unlocked
Warranty: 12 months Starting from
$218.00
iPhone 12 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone 12

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$430.74
iPhone X 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone X

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$211.00
iPhone 11 Pro Max 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone 11 Pro Max

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$460.00
iPhone XS 256GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone XS

256 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$262.09
iPhone 11 Pro 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone 11 Pro

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$430.00
iPhone 11 Pro 256GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone 11 Pro

256 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$449.98
iPhone SE (2020) 64GB - White - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

64 GB - White - Unlocked
Warranty: 12 months Starting from
$172.52
iPhone 11 128GB - Purple - Fully unlocked (GSM & CDMA)

iPhone 11

128 GB - Purple - Unlocked
Warranty: 12 months Starting from
$354.99
iPhone X 64GB - Silver - Fully unlocked (GSM & CDMA)

iPhone X

64 GB - Silver - Unlocked
Warranty: 12 months Starting from
$229.00

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Verified customer reviews for Refurbished Unlocked GSM Phones

4.3/5

Average of 21,469 reviews from the past 6 months.

4-5 stars
76%
3-4 stars
12%
2-3 stars
7%
1-2 stars
5%
Jeremy J. Bought: Galaxy A50 3 days 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

 
Daniel B. Bought: OnePlus 8 T-Mobile 1 month ago
5/5
I've had the phone for about 10 months now, and am super happy with it. The refurbish was good, just as described and with good battery. The OnePlus 8 itself is great, it's fast, and I've never been frustrated with it.

Value for money

Overall performance

Appearance

Accessories

Battery

Lens & Camera

Packaging and cleanliness

Shipping

 
Donald M. Bought: Galaxy A7 1 month ago
5/5
The refurbished Samsung Galaxy A7 I ordered for my wife arrived quickly. It looks new! After setting it up for her, I almost want to use that instead of my own refurbished Galaxy A10e. The A7 has twice the memory (64 vs 32) as the A10e, and the measurements are similar.

Value for money

Overall performance

Appearance

Accessories

Battery

Lens & Camera

Packaging and cleanliness

Shipping

 
Janice B. Bought: iPhone XS Max 1 month ago
4.1/5
The physical quality of the iPhone XS max that I purchased is excellent however, it keeps running hot. It happens when it's on the charger and also with the battery is critically low. I'm going to contact the seller to see if I can trade it in. I received an email before it arrived saying "If you p...

Value for money

Overall performance

Appearance

Accessories

Battery

Lens & Camera

Packaging and cleanliness

Shipping

 
Shannon B. Bought: iPhone 11 2 months ago
5/5
I ordered the 64 GB iPhone 11 in purple and received it in a week. It looked brand new and took me a couple days to notice minor scuffs on the sides. Other than that, it didn’t appear refurbished! It was a breeze to set up, is really fast, and has a 100% battery life. I’ve been using it for about a ...

Value for money

Overall performance

Appearance

Accessories

Battery

Lens & Camera

Packaging and cleanliness

Shipping

 
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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!