- TrueGrade tested — passes our 25-point inspection
- Fast, tracked shipping
- 90-day returns
- Up to 70% cheaper than new
Samsung Galaxy S21 5G – Phantom Gray
Buy a certified refurbished Samsung Galaxy S21 5G in Phantom Gray from $100 at Device Giant — every Galaxy S21 5G is fully tested under our 25-point TrueGrade inspection, ships unlocked-ready, and is backed by our 90-day warranty and free US shipping. 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. Compare grades, storage and carrier options below and save versus buying new.
Galaxy S21 5G key features
- 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 5G full specifications
| Display | 6.2 in Dynamic AMOLED 2X, 2400 x 1080, 120Hz |
|---|---|
| Processor | Qualcomm Snapdragon 888 5G |
| RAM | 8 GB |
| Storage | 128GB, 256GB |
| Rear camera | 12 MP (wide) + 64 MP (telephoto) + 12 MP (ultrawide) |
| Front camera | 10 MP, f/2.2 |
| Battery | 4000 mAh, 25W wired fast charging |
| Build | Glass front (Gorilla Glass Victus), plastic back, aluminum frame, IP68 |
| Operating system | Android |
| Network | GSM / CDMA / HSPA / EVDO / LTE / 5G (sub-6GHz and mmWave) |
| Biometrics | Under-display ultrasonic fingerprint, Face recognition |
| Dimensions | 151.7 x 71.2 x 7.9 mm |
| Weight | 169 g |
Why buy a refurbished Galaxy S21 5G?
- Save big — a used Galaxy S21 5G starts at just $100, well below retail.
- 25-point TrueGrade tested — battery, screen, cameras, buttons and network all verified.
- 90-day warranty & free shipping on every Galaxy S21 5G.
- Better for the planet — buying refurbished keeps e-waste out of landfills.
- Upgrade to a newer model and get cash back
- Still a powerful and desirable device for resale
- Contribute to sustainable electronics by trading in
Galaxy S21 5G pros and cons
Pros
- Excellent, vibrant 120Hz display
- Powerful performance with Snapdragon 888
- Capable and versatile camera system
- Compact and comfortable to hold
- IP68 water and dust resistance
Things to know
- No microSD card slot for expandable storage
- Plastic back panel (compared to glass on Ultra models)
- No charger included in the box
- Battery life is decent but not class-leading
Carrier compatibility
This refurbished Galaxy S21 5G is available unlocked and compatible with AT&T, Verizon. Check the carrier selector above — we only show options we have in stock so you can buy the exact Galaxy S21 5G that works on your network.
Storage options
Choose the Galaxy S21 5G in 128GB. Pick more storage for photos, apps and offline media.
TrueGrade condition guide
- Grade A — Excellent: like-new, minimal to no visible wear.
- Grade B — Great: light signs of use, fully functional.
- Grade C — Fair: visible wear at the best price.
- As-is / damaged: clearly described cosmetic or functional notes, priced accordingly.
Galaxy S21 5G — frequently asked questions
Is the Samsung Galaxy S21 5G still worth buying in 2026?
Yes — with 6.2-inch Dynamic AMOLED 2X 120Hz Display and a proven design, the Galaxy S21 5G remains a great-value refurbished phone, especially at $100 with a 90-day warranty.
Does the refurbished Galaxy S21 5G come unlocked?
Most Galaxy S21 5G units are sold unlocked and ready for AT&T, Verizon. Carrier-specific versions are clearly labeled in the carrier selector.
How much does a used Galaxy S21 5G cost?
At Device Giant a refurbished Galaxy S21 5G starts from $100, with the exact price depending on storage, carrier and TrueGrade condition.
What's included with a refurbished Galaxy S21 5G?
Your Galaxy S21 5G ships fully reset and tested with a compatible charging cable, a 90-day warranty and free shipping. Accessories vary by condition.
What do the condition grades mean?
See the TrueGrade guide above — A (excellent), B (great), C (fair) and clearly-described as-is options, so you can pick the right balance of price and cosmetics for your Galaxy S21 5G.
Every device is graded for cosmetic condition and tested for full function against our TrueGrade 25-point inspection. Buying refurbished keeps a working phone out of landfill — better for your wallet and the planet.
Better for your wallet & the planet
Every refurbished phone is a win for the planet
Choosing refurbished over new keeps a working device out of landfill — and skips the carbon, water and raw materials it takes to build a brand-new one. A small choice with real impact.
Less carbon
Most of a phone's lifetime emissions come from manufacturing. Reuse skips nearly all of it.
Less e-waste
Millions of devices are trashed every year. Every reused phone is one less in a landfill.
Fewer raw materials
No new mining of rare metals, no manufacturing water use — the device already exists.
Circular by design
When a device truly can't be saved, we harvest its working parts and recycle the rest responsibly.
Refurbished is not a compromise. It is the smarter, greener way to buy tech, and every TrueGrade device ships tested, graded and ready for its second life. See how we do it →
