- TrueGrade tested — passes our 25-point inspection
- Fast, tracked shipping
- 90-day returns
- Up to 70% cheaper than new
LG K51 – Titan Gray — Screen Burn / Shadow (AS-IS)
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Buy a certified refurbished LG K51 in Titan Gray from $42 at Device Giant — every K51 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 LG K51, released in 2020, is a reliable and affordable smartphone designed for everyday use. It features a large 6.55-inch HD+ display, making it suitable for media consumption and browsing. With a triple camera system and a robust 4000 mAh battery, it offers a solid user experience for its price point. Compare grades, storage and carrier options below and save versus buying new.
K51 key features
- Large 6.55-inch HD+ Display
- Triple Rear Camera System
- 4000 mAh Battery
- 3.5mm Headphone Jack
- Expandable Storage (microSDXC)
- MIL-STD-810G Compliant Durability
- Rear-mounted Fingerprint Sensor
K51 full specifications
| Display | 6.5 in IPS LCD, 1600 x 720, 60Hz |
|---|---|
| Processor | MediaTek Helio P22 (MT6762) |
| RAM | 3 GB |
| Storage | 32GB, 64GB |
| Rear camera | 13 MP (wide) + 5 MP (ultrawide) + 2 MP (depth) |
| Front camera | 13 MP, f/2.0 |
| Battery | 4000 mAh, 10W wired |
| Build | Glass front, plastic back, plastic frame |
| Operating system | Android |
| Network | 4G LTE |
| Biometrics | Rear-mounted fingerprint sensor, Face recognition |
| Dimensions | 165.8 x 76.7 x 8.4 mm |
| Weight | 194 g |
Why buy a refurbished K51?
- Save big — a used K51 starts at just $42, well below retail.
- 25-point TrueGrade tested — battery, screen, cameras, buttons and network all verified.
- 90-day warranty & free shipping on every K51.
- Better for the planet — buying refurbished keeps e-waste out of landfills.
- Upgrade to a newer model
- Get cash for your old device
- Clear out unused electronics
K51 pros and cons
Pros
- Affordable price point
- Large display for media
- Good battery life
- Headphone jack and expandable storage
Things to know
- Modest performance for demanding tasks
- HD+ display resolution (not Full HD)
- No fast charging support
- Plastic build materials
Carrier compatibility
This refurbished K51 is available unlocked and compatible with T-Mobile. Check the carrier selector above — we only show options we have in stock so you can buy the exact K51 that works on your network.
Storage options
Choose the K51 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.
K51 — frequently asked questions
Is the LG K51 still worth buying in 2026?
Yes — with Large 6.55-inch HD+ Display and a proven design, the K51 remains a great-value refurbished phone, especially at $42 with a 90-day warranty.
Does the refurbished K51 come unlocked?
Most K51 units are sold unlocked and ready for T-Mobile. Carrier-specific versions are clearly labeled in the carrier selector.
How much does a used K51 cost?
At Device Giant a refurbished K51 starts from $42, with the exact price depending on storage, carrier and TrueGrade condition.
What's included with a refurbished K51?
Your K51 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 K51.
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 →
