Galaxy S21 Ultra 5G AT&T 256 GB - Black

4.3/5
30 days to change your mind
  • Galaxy S21 Ultra 5G AT&T
1 - 3
    As low as $53.81/mo for 12 months at 10% APR
    $1,500.00

    $612.11

    Only compatible with
    AT&T
    Don't see your carrier?

    Comes with

    Good Karma
    Charging cable

    For you? Only the best.

    • 59% less vs. new
    • Express shipping from $29.99 in 48 hours with FedEx - Overnight
    • Refurbished tech can help reduce e-waste, more than you think.
    • Verified refurbished

    Renewed and sold by SectorSeven

    Refurbisher since 2020, location: United States

    • Ships from

      United-States
  • Accepts

    VisaMastercardDiscoverAmerican Express
  • Galaxy S21 Ultra 5G AT&T's customer reviews

    4.3/5
    (117 reviews for this item)
    A

    Aaron C.

    4.9/5

    5 months ago

    To start with I had trust issues about the whole thing. When I saw the price I even thought that the phone could be an imitation. I also expected the phone to have issues, like a borken screen or chipped frame. I did not expect the product to be in such good condition. For the most part, refurbished phones have a reputation of not being comparable to new phones (in my opinion), but the my S21 Ultra is comparable to a brand new phone, while also having the price of a refurbished phone. I will definetly be buying more from Back Market in the future. 100% would recomend.

    R

    Richelle D.

    4.9/5

    1 month ago

    Excellent phone. I purchased as condition 'good', and I would not expected more if I had selected 'excellent'. The only thing I think should have been done before shipping was 'factory reset'. There were some pieces of information that belonged to the refurbisher, and should have been wiped for the best startup experience. I did the factory reset, and phone behaved exactly as new out of the box.

    J

    Jonathan M.

    5/5

    2 months ago

    Really happy with the quality of the phone and the quick shipping. Aside from a bit of dirt and dust caught in the edges, its pretty much flawless. There is this weird darkening of the screen on the top left corner but it only appears when looked at from a certain angle and doesn't show up during regular use (or gets blocked by the notification bar). Battery health is in pretty good condition too at 90%. I'll admit, I was pretty anxious about giving refurbished phones a try but it honestly couldn't have gone any better. Would definitely buy from this seller again!

    R

    Ron H.

    5/5

    1 month ago

    I was skeptical about purchasing a refurbished phone. But I was glad I did purchase from Back Market. The transaction went soooo smooth from the purchase to getting it hooked up to T-Mobil. Best of all the price was right! Thank you so much...I would recom mend u guy's to friends that are looking for a new used phone. Ronald Hom

    K

    Kathleen T.

    5/5

    5 months ago

    I love this unlocked phone and the process for buying it was seamless. I bought it refurbished but it was actually a NEW phone complete with its original packaging. However, my first purchase of this phone (refurbished) was advertised as unlocked (but was locked), so that didn't go so well. I invested $60 in the locked phone for a screen saver and setup/data transfer BEFORE realizing I could not use the phone to make calls, etc. The vendor quickly returned my money and the process for returning it was also seamless. However, I'm still out about $60 with no mechanism to discuss my complaint. Back Market only gets involved if the seller isn't being responsive so I never got the "SOS" button Back Market advertises. This is probably a pretty unique experience but I'm still annoyed that I have no way to discuss and remedy my issue.

    J

    James M.

    5/5

    3 days ago

    The Condition i pick was good and the phone came in like Brand new and it charged up with no problem so my first time on this website buying was great and i will keep buying more product from Back Market. 1 thing i do know is the reviews are very important when buying any item from here so for those who are afraid to buy from here its a safe site to buy from and the 1yr warranty is a plus so you don't feel like you got screwed, the seller i bought from had great reviews so i decided to give it a try. Galaxy S21 Ultra 5G 256GB - Black - Fully unlocked (GSM & CDMA MINT Condition when i got it. Deal with them People.

    B

    Brad T.

    5/5

    5 months ago

    Excellent Quality. I Have never ordered refurbished before. I Have not gone through all the features of this phone yet, but so far, I am very pleased. I will be a returning customer.
    See all 117 reviews

    Everything you ever wanted to know about the Galaxy S21 Ultra 5G AT&T

    Galaxy S21 Ultra 5G 256GB - Black - Locked AT&T


    Our partners are electronics experts who test and verify that each product is 100% functional before it leaves the factory. This is the reason you benefit from a minimum 1-Year warranty with the purchase of a refurbished device at Back Market.

    Galaxy S21 Ultra 5G - 256 GB - Black

    • Screen size (inches) : 6.8
    • Is the phone Unlocked or tied to a carrier? : AT&T
    • Sim Card Format : Nano
    • Storage : 256 GB
    • Memory : 12 GB
    • Model : Galaxy S21 Ultra 5G
    • eSIM : Yes
    • Processor brand : Qualcomm
    • Processor Core : 8
    • Megapixels : 108
    • OS : Android
    • Resolution : 1920 x 1080
    • Foldable : No
    • Screen type : Dynamic AMOLED
    • Connector : USB-C
    • Network : GSM + LTE
    • Release Date : January 2021
    • Double SIM : No
    • Manufacturer Ref. : SM-G998U
    • 5G : Yes
    • SAR head : 0.77
    • SAR body : 1.02
    • Series : Galaxy S
    • Color : Black
    • Verizon compatible : No
    • AT&T compatible : Yes
    • T-Mobile compatible : No
    • Sprint Compatible : No
    • U.S. Cellular compatible : No
    • Release Year : 2021
    • Memory Card Slot : No
    • Brand : Samsung
    • Weight : 8 oz

    Welcome to Back Market

    The best prices for high-quality renewed goods by refurbishers we’ve checked and vetted. We don’t mind if you Google us .
    Get to know us
    Welcome to Back Market
    • Installment plans
    • 30 days to change your mind
    • Free standard shipping
    • 1-year warranty
    1 - 3
    • Current