- TrueGrade tested — passes our 25-point inspection
- Fast, tracked shipping
- 90-day returns
- Up to 70% cheaper than new
Samsung Galaxy A21 – Black
Buy a certified refurbished Samsung Galaxy A21 in Black from $50 at Device Giant — every Galaxy A21 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 A21, released in 2020, offers a practical and accessible smartphone experience. Designed for everyday use, it features a large 6.5-inch Infinity-O display, providing ample screen real estate for browsing, social media, and video consumption. Its versatile quad-camera system allows users to capture a variety of shots, from wide landscapes to detailed close-ups, making it a capable option for casual photography. Compare grades, storage and carrier options below and save versus buying new.
Galaxy A21 key features
- Large 6.5-inch Infinity-O Display
- Versatile Quad Camera System
- Long-lasting 4000 mAh Battery
- Expandable Storage via microSD
- Rear-mounted Fingerprint Sensor
- 3.5mm Headphone Jack
- USB Type-C Connectivity
Galaxy A21 full specifications
| Display | 6.5 in PLS TFT, 1600 x 720, 60Hz |
|---|---|
| Processor | MediaTek Helio P35 (MT6765) |
| RAM | 3 GB |
| Storage | 32GB |
| Rear camera | 16 MP (wide) + 8 MP (ultrawide) + 2 MP (macro) + 2 MP (depth) |
| Front camera | 13 MP, f/2.0 |
| Battery | 4000 mAh, 15W wired |
| Build | Glass front, plastic back, plastic frame |
| Operating system | Android |
| Network | 4G LTE |
| Biometrics | Rear-mounted fingerprint, Face recognition |
| Dimensions | 167.8 x 76.7 x 8.7 mm |
| Weight | 193 g |
Why buy a refurbished Galaxy A21?
- Save big — a used Galaxy A21 starts at just $50, well below retail.
- 25-point TrueGrade tested — battery, screen, cameras, buttons and network all verified.
- 90-day warranty & free shipping on every Galaxy A21.
- Better for the planet — buying refurbished keeps e-waste out of landfills.
- Affordable entry into the Samsung ecosystem.
- Reliable performance for daily tasks.
- Good battery life for extended use.
Galaxy A21 pros and cons
Pros
- Large display for media consumption.
- Good battery life.
- Dedicated microSD slot.
- Affordable price point.
- Headphone jack included.
Things to know
- Lower resolution display.
- Modest performance for demanding apps.
- Plastic build quality.
- No 5G connectivity.
Carrier compatibility
This refurbished Galaxy A21 is available unlocked and compatible with Boost/Unlocked. Check the carrier selector above — we only show options we have in stock so you can buy the exact Galaxy A21 that works on your network.
Storage options
Choose the Galaxy A21 in 32GB. 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 A21 — frequently asked questions
Is the Samsung Galaxy A21 still worth buying in 2026?
Yes — with Large 6.5-inch Infinity-O Display and a proven design, the Galaxy A21 remains a great-value refurbished phone, especially at $50 with a 90-day warranty.
Does the refurbished Galaxy A21 come unlocked?
Most Galaxy A21 units are sold unlocked and ready for Boost/Unlocked. Carrier-specific versions are clearly labeled in the carrier selector.
How much does a used Galaxy A21 cost?
At Device Giant a refurbished Galaxy A21 starts from $50, with the exact price depending on storage, carrier and TrueGrade condition.
What's included with a refurbished Galaxy A21?
Your Galaxy A21 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 A21.
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 →
