Collection: Certified Pre-Owned iPhone 12 Series, 5G, OLED, Fully Unlocked

Finding a premium smartphone that balances performance, price, and reliability can feel like a compromise. You want the power and design of an Apple device without the brand-new price tag, but the world of used electronics is filled with uncertainty. At Plug Tech, we eliminate that risk. We provide a top-tier refurbished iPhone 12 that is not only affordable but also fully certified and guaranteed. Every iPhone 12 unlocked model we sell has passed a rigorous inspection process, ensuring it meets our high standards for quality and performance. With a comprehensive 12-month warranty and a 30-day money-back guarantee, you get the value you want with the peace of mind you deserve.

6 products

  • Sale

    Apple

    763 total reviews

    iPhone 12 Green 64GB (Unlocked)

    Regular price From $179.99 USD
    Sale price From $179.99 USD Regular price $699.99 USD
    Save 75%
    Sale
  • Sale

    Apple

    763 total reviews

    iPhone 12 - Starter Pack

    Regular price From $199.99 USD
    Sale price From $199.99 USD Regular price $399.99 USD
    Save 53%
    Sale
  • Sale

    Apple

    763 total reviews

    iPhone 12 White 64GB (Unlocked)

    Regular price From $179.99 USD
    Sale price From $179.99 USD Regular price $699.99 USD
    Save 75%
    Sale
  • Sale

    Apple

    763 total reviews

    iPhone 12 Black 64GB (Unlocked)

    Regular price From $179.99 USD
    Sale price From $179.99 USD Regular price $699.99 USD
    Save 74%
    Sale
  • Sale

    Apple

    338 total reviews

    iPhone 12 Pro Graphite 256GB (Unlocked)

    Regular price From $279.99 USD
    Sale price From $279.99 USD Regular price $999.99 USD
    Save 68%
    Sale
  • Sale

    Apple

    338 total reviews

    iPhone 12 Pro - Starter Pack

    Regular price From $269.99 USD
    Sale price From $269.99 USD Regular price $518.96 USD
    Save 62%
    Sale
What is the difference between a refurbished iPhone 12 and a Certified Pre-Owned iPhone 12?

A generic refurbished iPhone 12 typically receives a cosmetic clean and software reset. Plug's Certified Pre-Owned iPhone 12 goes through a 90+ point technical inspection, battery health, display quality, cameras, Face ID, 5G connectivity, and more, then ships with a full 12-month warranty. It's a significantly higher standard than a typical refurbished listing.

How much does a Certified Pre-Owned iPhone 12 cost at Plug?

CPO iPhone 12 models start from $189.99 at plug.tech, with pricing varying by model (mini, standard, Pro, Pro Max) and storage. All include free shipping and a 12-month warranty, representing savings of 50–65% versus new retail price. (Verify current pricing before publishing)

Does a Certified Pre-Owned iPhone 12 come unlocked?

Yes, every iPhone 12 at Plug is fully unlocked. It works on AT&T, Verizon, T-Mobile, and any compatible GSM carrier, with no carrier restrictions or activation locks.

Is the iPhone 12 5G compatible?

Yes, the entire iPhone 12 lineup was Apple's first 5G family. All models (12 mini, 12, 12 Pro, 12 Pro Max) support Sub-6GHz and mmWave 5G where available. This makes the iPhone 12 one of the most cost-effective ways to access 5G connectivity in 2026.

Is the iPhone 12 still worth buying in 2026?

For budget-conscious buyers who want 5G capability, OLED display quality, and Face ID, the iPhone 12 is an excellent choice in 2026. Apple continues to support it with iOS updates, and at CPO prices from $189.99 the performance-to-cost ratio is hard to beat.

The iPhone 12: A Leap Forward in Performance and Durability


The iPhone 12 remains one of the most popular smartphones for a reason. It represents a significant upgrade in technology that still feels modern and powerful today. When you choose a certified refurbished model from Plug, you get all the groundbreaking features at a fraction of the original cost.


Why the iPhone 12 Stands Out


  • A14 Bionic Chip: This is the engine behind the iPhone 12’s incredible speed. Why it matters: Your apps launch instantly, multitasking is seamless, and demanding games run without a hitch. It’s performance that keeps up with you.
  • Super Retina XDR Display: The edge-to-edge OLED screen delivers brilliant colors and incredible contrast. Why it matters: Photos and videos look more vibrant and true-to-life, and text is exceptionally sharp, making everything from streaming movies to reading articles a better experience.
  • Ceramic Shield Front Cover: Tougher than any smartphone glass, Ceramic Shield provides four times the drop protection. Why it matters: This means real-world durability and less anxiety about everyday bumps and accidents, solving a major pain point for any phone owner.
  • 5G Connectivity: Get access to the fastest wireless speeds for quicker downloads and smoother streaming. Why it matters: Your device is future-proof, ensuring you can take advantage of next-generation networks for years to come.
  • Dual-Camera System: The advanced wide and ultra-wide cameras excel in all lighting conditions, especially with Night mode. Why it matters: You can capture stunning, detailed photos and 4K videos with professional quality, day or night.


Who a Refurbished iPhone 12 Is Perfect For


Our customers choose Plug because they are smart consumers who demand both value and quality. They know a certified pre-owned device is the most intelligent way to own premium technology. We serve a diverse community of tech users, including:


  • The Smart Upgrader: You want newer technology and better features without being tied to expensive carrier contracts or paying full retail price. A refurbished iPhone 12 gives you a massive performance boost at an accessible price point.
  • The Environmentally Conscious Buyer: You understand that choosing a refurbished device extends its lifecycle, reducing e-waste and minimizing environmental impact. It's a purchase you can feel good about.
  • Parents and Students: You need a reliable, high-performance device for communication, schoolwork, and entertainment that fits within a budget. Our certified quality and warranty provide total peace of mind.
  • The Small Business Owner: You need a dependable secondary device for work without a major capital expense. An unlocked iPhone 12 offers the flexibility and power to manage your business on the go.


Why Trust Plug for Your iPhone 12?


In a market with countless options, trust is everything. At Plug, we’ve built our reputation on transparency, quality, and an unwavering commitment to our customers. Recognized by outlets like The New York Times as a top way to buy a used iPhone, we stand behind every device we sell.


  • Rigorous Certification Process: Every iPhone 12 undergoes a comprehensive 90+ point inspection by expert technicians. We test everything from camera quality and screen responsiveness to battery health and port functionality to ensure it performs like new.
  • Guaranteed Battery Health: We know battery life is critical. That's why we guarantee every device has a battery health of 85% or higher, so you can count on it to last through your day.
  • Industry-Leading Warranty: Our 12-month warranty is our promise to you. If you encounter any defects, we're here to make it right. This is double or triple the coverage offered by many competitors.
  • 30-Day Hassle-Free Returns: We are confident you'll love your device. But if for any reason you're not completely satisfied, you can return it within 30 days for a full refund.



Frequently Asked Questions


#### Is a refurbished iPhone 12 unlocked?

Yes, every refurbished iPhone 12 sold by Plug is fully unlocked. This means you are free to use it with any carrier of your choice, both in the U.S. and internationally.


#### What warranty comes with a refurbished iPhone 12?

We provide our industry-leading 12-month limited warranty with every device. This covers any functional defects and gives you confidence that your purchase is protected.


#### How do you ensure battery health and device quality?

Our certification process includes a thorough battery health check. We ensure that every iPhone 12 has a battery capacity that meets or exceeds 85%. If it doesn't, we replace it before certifying the device for sale.


#### Can I return the iPhone if I’m unsatisfied?

Absolutely. We offer a 30-day money-back guarantee. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund, no questions asked.


#### How long will a refurbished iPhone 12 last?

With its powerful A14 Bionic chip and durable design, a certified refurbished iPhone 12 is built to last. With proper care, you can expect it to receive software updates and perform reliably for 3-4 years or more.


#### Why is an unlocked iPhone 12 a better choice?

An unlocked iPhone gives you ultimate freedom. You aren't tied to a specific carrier or a long-term contract. You can switch providers to find the best monthly plan, or use local SIM cards when traveling abroad to avoid expensive roaming fees.