Is a used iPhone X recommended? A thorough review of this cost-effective device that's still viable in 2025.

"Is it still okay to buy a used iPhone X now?"

"I want to try Face ID and the OLED display, but I want to keep the price down."

For those of you with such concerns, we'll explain how to choose a used iPhone X model.

Although the iPhone X was released in 2017, it still boasts sufficient performance for daily use. In this article, we'll provide detailed information on points to consider, precautions, and a comparison of where to buy a used model, all from the perspective of "safety, affordability, and practicality."

Why a Used iPhone X is Getting Attention Now

High Performance & Ease of Use with A11 Bionic and Face ID

The iPhone X was a groundbreaking model, the first from Apple to feature Face ID (facial recognition) and an OLED display. The A11 Bionic chip maintains processing performance sufficient for comfortable daily web browsing, social media, and video viewing. Furthermore, the shift from fingerprint authentication to facial recognition has made it even more convenient in an era where masks are not required. Even in 2025, it has enough specs for practical use, making it recommended for a first smartphone or a secondary device.

2017 Model Still Runs Current Apps & Costs ¥30,000-¥50,000

Although the iPhone X has been out for several years, it supports iOS 16, and major apps like LINE and Instagram can be used without issues. In the used market, it's typically sold for ¥30,000 to ¥50,000, offering a chance to get a high-spec device at a reasonable price. Compared to new high-end models, it offers overwhelmingly better cost performance, making it an attractive option, especially for users who want to keep initial investment low.

iOS Support Up to iOS 16 – Is There Future Potential?

As of 2025, iOS support is up to iOS 16, but security updates are still ongoing, so there's no immediate concern about it becoming unusable. While it doesn't support some features of the latest iOS, it's unlikely to be inconvenient for daily use and can still be effectively used for another one to two years.

Checkpoints When Choosing a Used iPhone X

Battery: "80% or More" Maximum Capacity is Safe

The biggest factor affecting the performance of a used smartphone is the battery condition. Since battery replacement is recommended for iPhones when the battery falls below 80%, aim for "80% or more maximum capacity" as a benchmark when purchasing. PRODIG allows you to check the battery information of all devices in advance, ensuring you can purchase with peace of mind.

Whether it's a "red ROM" / "white ROM" and SIM-unlocked

A "red ROM" device refers to a device where communication has been suspended because the previous user defaulted on installment payments. Since there's a risk that the SIM card won't work, choose a device with a "red ROM" guarantee when purchasing. Furthermore, a SIM-free device allows for smooth operation with budget SIM cards. PRODIG handles devices with a permanent "red ROM" guarantee and SIM unlocking, making it safe even for beginners.

Availability of Warranty and Return Policy

An often-overlooked aspect when buying a used smartphone is the warranty and return policy after purchase. To prepare for potential defects, it's recommended to choose a store that offers a warranty period of 30 days or more. PRODIG offers a 180-day operational warranty, ensuring prompt support in case of initial defects or issues.

PRODIG's 安心補償の仕組み (Reliable Compensation System)

Advantages and Disadvantages by Purchase Location Type

Flea Markets and Auctions Carry High Risk

While person-to-person transactions on platforms like Mercari and Yahoo Auctions offer lower prices, they come with risks such as "red ROM" devices, water damage, or operational defects. Since warranties and return policies are often absent, they are not recommended for those unfamiliar with smartphone purchases. Particularly for popular models like the iPhone X, beware of counterfeit products and fraudulent listings.

Comparison with Apple Certified Refurbished / Carrier Certified Used

Apple's official refurbished products and major carriers' certified used devices offer a certain level of quality and warranty, providing peace of mind. However, their prices tend to be somewhat higher, and available inventory can be limited. For those who feel "high performance isn't absolutely necessary," these options might be slightly less appealing in terms of cost-effectiveness.

Reliability of Specialty Used Stores

Specialty used smartphone stores often perform operational checks and cleaning before shipping, and battery information is disclosed, ensuring stable quality. Among them, PRODIG offers a 180-day operational warranty and a permanent red-ROM guarantee as standard. This makes it a trusted choice even for first-time buyers of used iPhone X devices, and you can also check and purchase in person at their Akihabara physical store.

Why You Should Choose a Used iPhone X from PRODIG

• Permanent red-ROM guarantee + 180-day operational warranty for peace of mind

• Battery capacity, operational check, and cleaning completed

• Available for purchase at the Akihabara physical store

• Comprehensive support system, ideal for beginners

Post-Purchase Operation: Combining with Budget SIM Cards

If your iPhone X is a SIM-free device, it supports major MVNOs such as Rakuten Mobile, mineo, and IIJmio. This is an ideal combination for those who want to use a high-performance smartphone while keeping monthly fees low. Although it's not an eSIM-compatible model, physical SIM operation is not an issue. Follow the MVNO's instructions for APN settings.

What About Your Current Smartphone? PRODIG Offers Buyback in Akihabara Too

If you have an old smartphone you no longer need due to a model change, selling it at PRODIG's Akihabara store is also a good option.

• Immediate appraisal and cash payment available at the Akihabara physical store

• While there might be deductions based on device condition, you can check reference prices in advance.

PRODIG's Buyback Service

Q&A – Frequently Asked Questions About Used iPhone X

Q. Do used devices break down quickly?

A. PRODIG inspects all products for operation, cleans them, specifies battery condition, and offers a 180-day warranty. It's safe even for first-time used phone buyers.

Q. Can it be used with budget SIMs?

A. If it's SIM-unlocked, it can be widely used with Rakuten Mobile, mineo, IIJmio, and others.

Q. Is battery replacement necessary?

A. If the maximum capacity is below 80%, consider replacement. Check the specifications before purchasing.

Finally

Even as a used model, the iPhone X boasts sufficient performance in 2025, offering a balance of cost-effectiveness, practicality, and peace of mind. It's an excellent choice for those who want to experience the latest features like Face ID and the OLED display at an affordable price. For those concerned about buying a used smartphone, PRODIG offers comprehensive warranty and quality control, ensuring a worry-free purchase. If you want to avoid making a mistake when choosing a used smartphone, please consider purchasing from PRODIG.

Click here to purchase a used iPhone X