Network
- Unlocked$25,500+
- AT&T$25,484+
- VerizonN/A
Best Certified Used and Refurbished Galaxy S21 Ultra 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$25,484
Best Fit
The Galaxy S21 Ultra AT&T is a good choice for AT&T customers looking for an affordable former flagship with a large 120Hz display, advanced cameras, and 5G support. It may cost less than the unlocked version, but the Galaxy S23 Ultra may be a better long-term choice if your budget allows.
Compare Galaxy S21 Ultra AT&T Prices
amazon
Excellent
Sale
AmazonAT&T 128GB Phantom Black
Excellent
$25,484
AmazonAT&T 128GB Phantom Silver
Excellent
$29,192
Excellent
amazon
SaleExcellent
AmazonAT&T 128GB Phantom Black
$25,484Excellent
AmazonAT&T 128GB Phantom Silver
$29,192Galaxy S21 Ultra AT&T General Market Price
* Disclaimer: this General Market Price doesn't include Amazon market price history.
Other Variants
Color
Storage
FAQ
Can I activate a Galaxy S21 Ultra AT&T on AT&T today?
Can I activate a Galaxy S21 Ultra AT&T on AT&T today?
Yes. A compatible Galaxy S21 Ultra AT&T can still be activated on AT&T's network.
Does the Galaxy S21 Ultra AT&T support Android 17?
Does the Galaxy S21 Ultra AT&T support Android 17?
No. The Galaxy S21 Ultra 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 Ultra?
Is the AT&T version usually cheaper than an unlocked Galaxy S21 Ultra?
It can be. Carrier-specific Certified Used / Refurbished phones are often priced lower than unlocked models.
Does the Galaxy S21 Ultra AT&T support 5G?
Does the Galaxy S21 Ultra AT&T support 5G?
Yes. The Galaxy S21 Ultra supports compatible AT&T 5G services, although coverage and network compatibility may vary.
Is a Certified Used / Refurbished Galaxy S21 Ultra AT&T a good value?
Is a Certified Used / Refurbished Galaxy S21 Ultra AT&T a good value?
It may be a low-cost option for AT&T customers who want premium hardware, but its limited remaining software support should be considered. UpTrade helps you compare its price with newer Galaxy models.
