• Ratings from our Backers: 4.3/5
  • 30-day money-back guarantee
  • Free standard shipping
  • 1-year warranty

Refurbished Unlocked GSM Phones

Our very best refurbished Unlocked GSM Phones:

-29%
iPhone 11 64GB - Black - Fully unlocked (GSM & CDMA)

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

Works with:

$349.99
$499.00
29% discount
Warranty: 12 months

Grade: Fair
7 oz of e-waste saved

4.3/5

Average of 24,346 reviews from the past 6 months.


That's according to Jyron H. My first purchase on Back Market but definitely not the last Today

All items

667 products

667 products

  • Price
    The average price is $394.00
  • Delivery time (business days)

  • Brand

  • Model

  • Storage (GB)

  • Color

  • Condition

  • Warranty

  • Release date

  • Method of Payment

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

iPhone XR

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$272.00
$349.00
Bestseller
iPhone SE (2020) 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$231.00
$399.00
Bestseller
iPhone XR 128GB - Black - Fully unlocked (GSM & CDMA)

iPhone XR

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$270.00
$399.00
Bestseller
Galaxy A01 16GB - Black - Unlocked GSM only

Galaxy A01

16 GB - Black - Unlocked
Warranty: 12 months Starting from
$70.91
$114.00
iPhone 8 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone 8

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$163.00
$269.00
Galaxy S10 128GB - Prism Black - Fully unlocked (GSM & CDMA)

Galaxy S10

128 GB - Prism Black - Unlocked
Warranty: 12 months Starting from
$228.00
$749.00
iPhone XR 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone XR

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$272.00
$349.00
iPhone 11 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$349.99
$499.00
iPhone SE (2020) 64GB - Black - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$231.00
$399.00
iPhone X 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone X

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$254.00
$449.00
Galaxy S10 Plus 128GB - Prism Black - Fully unlocked (GSM & CDMA)

Galaxy S10 Plus

128 GB - Prism Black - Unlocked
Warranty: 12 months Starting from
$248.00
$559.00
iPhone 8 Plus 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone 8 Plus

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$223.00
$319.00
iPhone XS 256GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone XS

256 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$313.00
$469.00
iPhone XR 128GB - Black - Fully unlocked (GSM & CDMA)

iPhone XR

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$270.00
$399.00
iPhone XS 64GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone XS

64 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$283.00
$579.00
iPhone XR 64GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone XR

64 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$271.00
$349.00
iPhone XR 64GB - White - Fully unlocked (GSM & CDMA)

iPhone XR

64 GB - White - Unlocked
Warranty: 12 months Starting from
$272.00
$349.00
iPhone 7 32GB - Black - Fully unlocked (GSM & CDMA)

iPhone 7

32 GB - Black - Unlocked
Warranty: 12 months Starting from
$99.00
$179.00
iPhone 11 64GB - Purple - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - Purple - Unlocked
Warranty: 12 months Starting from
$373.00
$499.00
iPhone 11 128GB - Black - Fully unlocked (GSM & CDMA)

iPhone 11

128 GB - Black - Unlocked
Warranty: 12 months Starting from
$402.00
$549.00
iPhone 8 64GB - Gold - Fully unlocked (GSM & CDMA)

iPhone 8

64 GB - Gold - Unlocked
Warranty: 12 months Starting from
$170.00
$269.00
iPhone 11 64GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$370.00
$499.00
Galaxy S9 Plus 64GB - Coral Blue - Fully unlocked (GSM & CDMA)

Galaxy S9 Plus

64 GB - Coral Blue - Unlocked
Warranty: 12 months Starting from
$136.00
$449.95
iPhone X 256GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone X

256 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$279.00
$419.00
iPhone SE (2020) 64GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone SE (2020)

64 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$232.00
$399.00
iPhone 6s 32GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone 6s

32 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$95.00
$189.00
iPhone 8 64GB - (Product)Red - Fully unlocked (GSM & CDMA)

iPhone 8

64 GB - (PRODUCT)Red - Unlocked
Warranty: 12 months Starting from
$193.99
$269.00
iPhone 11 64GB - White - Fully unlocked (GSM & CDMA)

iPhone 11

64 GB - White - Unlocked
Warranty: 12 months Starting from
$384.99
$499.00
iPhone 8 Plus 64GB - Gold - Fully unlocked (GSM & CDMA)

iPhone 8 Plus

64 GB - Gold - Unlocked
Warranty: 12 months Starting from
$245.00
$319.00
Galaxy S9 64GB - Black - Fully unlocked (GSM & CDMA)

Galaxy S9

64 GB - Black - Unlocked
Warranty: 12 months Starting from
$133.00
$599.00
iPhone X 64GB - Silver - Fully unlocked (GSM & CDMA)

iPhone X

64 GB - Silver - Unlocked
Warranty: 12 months Starting from
$276.00
$449.00

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Galaxy Note10 Plus 256GB - Aura Glow - Fully unlocked (GSM & CDMA)

Galaxy Note10 Plus

256 GB - Aura Glow - Unlocked
Warranty: 12 months Starting from
$388.99
$1,299.99
iPhone XS Max 256GB - Space Gray - Fully unlocked (GSM & CDMA)

iPhone XS Max

256 GB - Space Gray - Unlocked
Warranty: 12 months Starting from
$372.00
$849.00
iPhone XR 128GB - White - Fully unlocked (GSM & CDMA)

iPhone XR

128 GB - White - Unlocked
Warranty: 12 months Starting from
$299.00
$399.00

Verified customer reviews for Refurbished Unlocked GSM Phones

4.3/5

Average of 24,346 reviews from the past 6 months.

4-5 stars
78%
3-4 stars
12%
2-3 stars
6%
1-2 stars
4%
Jurij T. Bought: iPhone XS 3 weeks ago
4.6/5
I never do reviews, but will in this case… In the past 6 months members of my family have purchased the following refurbished tech devices from Back Market: an apple Air, a Google Pixel 3a cell phone, an apple iPhone XS cell phone, and an apple iMac. The devices were ordered in good/very good sh...
Value for money
Overall performance
Appearance
Accessories
Battery
Lens & Camera
Packaging and cleanliness
Shipping
 

Dawn P. Bought: Galaxy S9 Plus T-Mobile 1 month ago
5/5
Extremely pleased with this Samsung Galaxy S9 plus! It was perfect condition, battery life is awesome and it worked straight out of the package with zero issues. I simply placed the existing Sim card into the device and didn't skip a beat. Highly recommend. This is where I'll shop from now on for re...
Value for money
Overall performance
Appearance
Accessories
Battery
Lens & Camera
Packaging and cleanliness
Shipping
 

Guerlanda S. Bought: Galaxy S9 1 month ago
4.4/5
I was a bit skeptical about buying a phone from this website because the prices were so good, it took me three days to finally decide which one I was getting with the help of my dear husband. I am writing this review with the samsung galaxy s9 which by the way I purchased for less than 200 dollars. ...
Value for money
Overall performance
Appearance
Accessories
Battery
Lens & Camera
Packaging and cleanliness
Shipping
 

Kathy W. Bought: iPhone 12 3 months ago
5/5
I love my iPhone 12 from backmarket! It is as good as brand new, no scratches on the screen or the back. Good phone, no regrets on buying refurbished and so glad to have the extra $ in my pocket instead at Apple!
Value for money
Overall performance
Appearance
Accessories
Battery
Lens & Camera
Packaging and cleanliness
Shipping
 

Angel O. Bought: Galaxy A51 3 months ago
4.5/5
I order this phone out with skepticism. I have never bought a refurbished phone before. However, I would say my experience was great, minus the 7-day shipping. The only thing I can complain about this phone is that there was a black ring around the selfie-camera lens. I don't believe this to be a fe...
Value for money
Overall performance
Appearance
Accessories
Battery
Lens & Camera
Packaging and cleanliness
Shipping
 

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!