Sell my Samsung Galaxy S21
Trade-in value up to $56 (256GB · flawless · unlocked) · paid quickly · free certified data wipe
Prices updated August 9, 2026 · refreshed daily from live market data
Released in 2021 at $799, your Samsung Galaxy S21 is worth real money today. Phones lose value fast once the next model lands, so selling your Galaxy S21 sooner puts more cash in your pocket. BuyBackBear gives you a transparent quote in seconds, pays more than carrier bill-credit deals, wipes your data to NIST 800-88 standards with a free certificate, and pays you quickly after we inspect it. Lock today's price below.
What's my Galaxy S21 worth? A Galaxy S21 in flawless, unlocked condition is worth up to $56 with BuyBackBear today, about 7% of its $799 launch price. Offers range from $5 for a broken unit up to $56 flawless, and we pay cash quickly after we inspect it. Released in 2021 (about 5 years ago), the Galaxy S21 keeps losing value as newer models launch, selling now locks today's price.
Model numbers (printed on the back): G991, G991B, G991B/DS, G991BDS, G991F, G991U, G991U1, G991U1Z, G991W, SC-51B, SM-G991, SM-G9910, check yours so we quote the exact variant.
Galaxy S21: key trade-in facts
- Top payout (flawless, unlocked)
- $56
- Broken / won't power on
- from $5
- Released
- 2021
- Launch price
- $799 (7% retained)
- Storage sizes priced
- 128GB, 256GB
- Payment
- PayPal, Zelle, Venmo or check
- Shipping
- Free prepaid label, both ways
- Quote lock
- 14 days
- Data
- NIST 800-88 certified wipe
Prices refresh daily. Machine-readable: live price JSON.
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Real cash vs a carrier trade-in
Your Galaxy S21 offer is paid as real cash you can spend anywhere. A carrier “trade-in” of a similar size is bill credit spread over 24 to 36 months, and only while you buy a new phone and stay on their plan.
- Real cash by PayPal, Zelle, Venmo or check
- Yours to spend anywhere, no strings
- We beat any competitor’s written quote by $2
- Spread over 24 to 36 monthly bill credits
- Only if you buy a new phone and stay on plan
- Leave early and the remaining credit disappears
| Condition | What it means |
|---|---|
| Flawless | Like new, no scratches, fully functional, no screen marks. |
| Good | Light wear, minor scratches. Screen and body intact, fully working. |
| Fair | Visible scratches or scuffs but no cracks. Fully functional. |
| Cracked screen | Cracked glass or display but the device still powers on and works. |
| Broken | Major damage, cracked back, bad screen, or faults. Still powers on. |
| Won't power on | Dead or won't boot, sold for parts. |
About the Galaxy S21
The Samsung Galaxy S21 5G, released in 2021, offers a premium smartphone experience in a compact form factor. It boasts a vibrant 6.2-inch Dynamic AMOLED 2X display with a smooth 120Hz refresh rate, perfect for immersive viewing and gaming. Powered by the Qualcomm Snapdragon 888 5G processor in the US, it delivers flagship-level performance for demanding applications and seamless multitasking. Its versatile triple-camera system captures stunning photos and videos, including an impressive 64MP telephoto lens for detailed zoom. With 5G connectivity, IP68 water resistance, and wireless charging, the Galaxy S21 5G remains a highly capable device, making it an excellent candidate for trade-in or resale.
- ✓6.2-inch Dynamic AMOLED 2X 120Hz Display
- ✓Qualcomm Snapdragon 888 5G Processor
- ✓Versatile Triple Camera System
- ✓5G Connectivity
- ✓IP68 Water and Dust Resistance
- ✓Wireless Charging
- ✓Compact and Ergonomic Design
- ✓Stereo Speakers
Galaxy S21 specifications
- Display
- 6.2 in
- Panel
- Dynamic AMOLED 2X
- Resolution
- 2400 x 1080
- Refresh rate
- 120Hz
- Chip
- Octa Core
- RAM
- 8 GB
- OS at launch
- Android
- Main camera
- 64.0 MP
- Front camera
- 10 MP, f/2.2
- Battery
- 4000
- Charging
- 25W wired fast charging
- Dimensions
- 151.7 x 71.2 x 7.9 mm
- Weight
- 169.0
- Build
- Glass front (Gorilla Glass Victus), plastic back, aluminum frame
- Water resistance
- IP68
- Port
- USB Type-C 3.2
- Unlock
- Under-display ultrasonic fingerprint, Face recognition
- Storage
- 128GB, 256GB
Common Galaxy S21 issues we check at inspection
- Screen burn-in on Dynamic AMOLED 2X display. Ghost images from status bar icons, navigation gestures, or keyboard are visible on the OLED panel, especially with static elements displayed for long periods.
- Battery degradation. The 4000mAh battery capacity has significantly reduced after 2-3 years of use, leading to shorter battery life.
- Cosmetic wear on aluminum frame. The aluminum frame is prone to scratches, scuffs, and minor dents from everyday use, especially around the edges and corners.
- Cracked or damaged screen. Physical damage to the Gorilla Glass Victus front, ranging from minor cracks to spiderweb fractures, often affecting touch responsiveness.
- Water damage indicators tripped. Despite the IP68 rating, internal water damage indicators may have been tripped due to submersion or exposure, leading to unpredictable hardware failures.
- Camera module issues. Problems with the rear camera, such as autofocus failure, blurry images, or the camera app crashing.