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US Mobile - Prepaid SIM Kit
Comes with
For you? Only the best.
- 72% less vs. new
- Free delivery by Jun 7 - Jun 8
- Express delivery by Jun 6 - Jun 7 from $37.00
- Refurbished tech can help reduce e-waste, more than you think.
Refurbished and sold by Supplytronics LLC
Live on Back Market since 2021
Accepts
Often bought together
Galaxy S21 5G's customer reviews
987 verified reviews in the last 6 months.
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Bridget C.
5/5Reviewed in the United States on December 29, 2022
Pleasantly surprised! I recently bought from this site and I am pleased with my purchase. I ordered a Samsung galaxy s21 5g in excellent condition and it was exactly what I hoped it would be. It arrived with no scratches works perfectly like a brand new phone I can’t tell it’s been refurbished at all. The best part about it all was the price! I will no longer buy from any other website besides back market. I highly recommend ordering from here.Galaxy S21 5G 128GB - Phantom Gray - UnlockedPurchased on December 17, 2022
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Derrick S.
4.6/5Reviewed in the United States on January 17, 2023
I was very satisfied with my purchase from Back Market and the particular vendor that refurbished the device. I bought a "Fair" condition and I was pleasantly surprised with what I got! The only small blemish I see is a 1/3 inch scratch on the screen that looks like an eye lash fell on it. Other than that I am so happy to have a Samsung galaxy phone again!Galaxy S21 5G 128GB - Phantom Gray - UnlockedPurchased on January 1, 2023
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Jonathan R.
5/5Reviewed in the United States on April 24, 2023
It feels as if I got it from the Samsung store or website you really can’t tell if it was refurbished or not so the quality is astounding to say the least. The shipping was actually surprisingly fast considering how far it was from where I live so, big ups for that and they would update me as to where it was all time. Overall I am very happy with my purchase as I needed a new phone for a while but I didn’t want to spend almost my whole paycheck for one so, as far as refurbished items go, please keep delivering, thank you.Galaxy S21 5G 128GB - Phantom Gray - UnlockedPurchased on April 8, 2023
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Thomas B.
4.3/5Reviewed in the United States on February 14, 2023
The phone is nice and in good shape and I loved the price. It is not recognizing a sim card though. I went to my carrier and we tried multiple cards and lots of troubleshooting. I am going to trade it in for a new S23. If not, I would have checked into sending it back for a different refurbished one.Galaxy S21 5G 128GB - Phantom Gray - UnlockedPurchased on January 16, 2023
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Mario B.
5/5Reviewed in the United States on April 16, 2023
I'm not one to buy anything refurbished but as of lately I'm not trying to spend 1000 on a phone every 2 years. So I made the decision to get one from back market and I'm actually impressed with the phone quality and functionality. I am Def buying my next phone here again.and I promise if you get one from this site you will not regret it.Galaxy S21 5G 128GB - Phantom Gray - UnlockedPurchased on March 24, 2023
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William P.
4.6/5Reviewed in the United States on June 1, 2023
fast shipping, high quality product at a fraction of the cost. my only complaint is that the refurbished phone seems to have a short lasting battery so I have to charge it every chance I get but as long as u keep a charge on it, I doesn't die. everything else has surpassed expectationsGalaxy S21 5G 128GB - White - UnlockedPurchased on November 28, 2022
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Robert B.
4.6/5Reviewed in the United States on December 21, 2022
I love Black market, great prices, great refurbished phones. The Galaxy s21 I purchased is a nice phone, I believe I bought it listed as fair condition but the phone is in great condition. Way to go black market !!Galaxy S21 5G 128GB - Phantom Gray - UnlockedPurchased on December 8, 2022
Reborn vs. brand new
Here’s what you help prevent on average by choosing a reborn smartphone over a brand new one.
171.1 lbs of CO2e
That's like driving an SUV from NYC to Chicago.
6.3 oz of e-waste
That’s around the weight of a baseball.
537.1 lbs of raw materials
That's like 20 dogs digging in your yard for a week.
20,341.2 gallons of water
That's like running a faucet for 3 days
Everything you ever wanted to know about the Galaxy S21 5G
Galaxy S21 5G 128GB - Phantom white - Unlocked
Our partners are electronics experts who test and verify that each item is 100% functional before it leaves the workshop. This is the reason you benefit from a minimum 1-year warranty with the purchase of a refurbished device at Back Market.
Galaxy S21 5G - 128 GB - Phantom White - Unlocked
- Screen size (inches) : 6.2
- Color : Phantom White
- Carrier compatibility : Unlocked
- Storage : 128 GB
- Model : Galaxy S21 5G
- Megapixels : 64
- OS : Android
- Memory : 8 GB
- eSIM : Yes
- Processor brand : Qualcomm
- Processor Core : 8
- Resolution : 1080 x 2400
- Foldable : No
- Screen type : Dynamic AMOLED 2X
- Connector : USB-C
- Network : GSM/CDMA + 5G
- Release Date : January 2021
- Double SIM : No
- Manufacturer Ref. : SM-G991U
- 5G : Yes
- Verizon compatible : Yes
- AT&T compatible : Yes
- T-Mobile compatible : Yes
- Release Year : 2021
- Memory Card Slot : No
- SAR head : 0.74
- SAR body : 1.08
- Dual SIM : Single-SIM + eSIM
- SIM format : Nano
- Brand : Samsung
- Weight : 6 oz
Welcome to Back Market
The best prices for high-quality reborn tech by sellers we’ve checked and vetted. We don’t mind if you Google us .
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- Free 30-day returns
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- 1-year warranty
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