Best Certified Used and Refurbished Galaxy S21 AT&T

Certified refurbished and thoroughly checked before it reaches you.

CarrierAT&T

Professionally Refurbished
Clean IMEI
Fully Functional
30-Day Money Back Guarantee

From$223

Best Fit

The Galaxy S21 AT&T is a good choice for AT&T customers looking for an affordable Samsung flagship with a 120Hz display and 5G support. It may cost less than the unlocked version, but the Galaxy S23 or Galaxy S23 FE may be a better long-term choice if your budget allows.

Model: Galaxy S21
Network: AT&T

Compare Galaxy S21 AT&T Prices

Galaxy S21

Excellent

Sale

Galaxy S21AT&T 256GB Phantom Gray

Excellent

$223

Excellent

Galaxy S21

Sale

Excellent

Galaxy S21AT&T 256GB Phantom Gray

$223

Other Variants

Network

Unlocked$141+-$82
AT&T$223+
T-MobileN/A
Verizon$185+-$38
Xfinity MobileN/A
SprintN/A

Color

Storage

FAQ

Can I activate a Galaxy S21 AT&T on AT&T today?

Yes. A compatible Galaxy S21 AT&T can still be activated on AT&T's network.

Does the Galaxy S21 AT&T support Android 17?

No. The Galaxy S21 AT&T does not support Android 17. Android 15 was its final major Android OS upgrade.

Is the AT&T version usually cheaper than an unlocked Galaxy S21?

It can be. Carrier-specific Certified Used / Refurbished phones are often priced lower than unlocked models.

Does the Galaxy S21 AT&T support 5G?

Yes. The Galaxy S21 supports compatible AT&T 5G services, although coverage and network compatibility may vary.

Is a Certified Used / Refurbished Galaxy S21 AT&T a good value?

It may be a low-cost option for AT&T customers, but its limited remaining software support should be considered. UpTrade helps you compare its price with newer Galaxy models.