The iPhone 15 series, while equipped with the latest technology, can now be acquired cost-effectively through various methods.

However, many people worry, "Is a used phone risky?", "Are refurbished phones really okay?", and "Where should I buy one so I don't regret it?". This article thoroughly explains how to purchase an iPhone 15 series affordably and with peace of mind.

Comparing options such as used, refurbished, trade-in discounts, and rentals, we will introduce tips for making a choice you won't regret. If you want to own an iPhone for less than the latest model, please refer to this guide.

Reasons to Choose the iPhone 15 Series

The iPhone 15 series is an appealing model with the latest features and a sophisticated design.

Particularly, its processing power thanks to the A16 Bionic chip and camera improvements offer more than enough performance for users who regularly use social media and video recording.

Furthermore, now is the opportune time to consider it, as the price difference with the 2024 model has begun to widen significantly. Although it's not the very latest model, considering its current usability and expected lifespan, it's a reliable device for long-term use.

Performance and Usability Rivaling the Latest Models

The iPhone 15 features the A16 Bionic processor, characterized by its very high processing power.

Video editing and game apps run smoothly, and it boasts specs comparable to the latest generation, such as Face ID and a high-resolution display.

With USB-C support, charging is more convenient and data transfer is faster. While there is a difference in performance compared to the iPhone 15 Pro, for general use, there are almost no major dissatisfactions. Its performance ensures reliable use for several years to come.

High Cost-Performance Because It's an Older Model

With the release of the latest model, the iPhone 15 series has seen an increase in used and sale items.

While possessing the same specifications as a new product, used or refurbished items can often be purchased 20-30% cheaper than new.

Moreover, by utilizing trade-in discounts and trade-in programs, the actual out-of-pocket expense can be significantly reduced. Unless you have a clear reason why you "need the latest model," the price advantage gained from choosing an older model is considerable.

*Prices as of September 16, 2025

New: 256GB from 130,000 yen

Used: 256GB from 110,000 yen

View the iPhone 15 series lineup here

5 Ways to Buy an iPhone 15 Series Affordably

Let's look at 5 common ways to buy an iPhone 15 series affordably, in order.

Purchasing a Used or Refurbished iPhone

Used or refurbished products are the most popular way to cut costs.

Especially Apple Certified Refurbished iPhones have cleared strict standards, and their batteries and exterior have been replaced to be like new. They also come with an operational warranty, providing peace of mind.

Even for used items, you can avoid post-purchase troubles by choosing conditions like "battery capacity 80% or more," "red-lock warranty," and "operation confirmed." The market price is typically around 60-80% of a new product. You can save even more by targeting sale periods.

View the iPhone 15 series lineup here

Utilize Carrier Switching Discounts and Benefits

MNP discounts when switching carriers offer a significant opportunity to save tens of thousands of yen. Particularly, low-cost SIM carriers like Rakuten Mobile, Y!mobile, and UQ mobile may offer substantial discounts on the iPhone 15.

Combining these with benefits and point rewards at the time of switching can drastically reduce the actual burden of cost. Be sure to thoroughly check the contract period and conditions beforehand.

Reduce Costs with a Trade-in Program

Trading in your old iPhone can directly reduce the cost of a new purchase.

For relatively new models like the iPhone 12 or iPhone 13, it's not uncommon to get an appraisal of over 30,000 yen. The battery condition and presence of accessories affect the appraisal value, so servicing and cleaning the device before selling can lead to a positive evaluation.

PRODIG's trade-in service offers smooth appraisal and monetization.

Click here for PRODIG's trade-in page

Look for Sales and Campaigns

During major holidays, year-end and New Year sales, and events like Amazon Prime Day, used and refurbished items can sometimes be available at special prices.

PRODIG also conducts limited-time sales and coupon distributions, so it's important not to miss prime opportunities. By regularly checking the website, you might unexpectedly come across a great find.

Use Rental Services for Easy Access

For those who are unsure if they'll use it long-term or want to try it out, renting is ideal. An increasing number of services allow you to rent the latest iPhone on a monthly basis, letting you experience it while keeping initial investment low. It's also convenient for short-term projects or when you unexpectedly need a replacement device.

A major appeal of renting is that it includes warranty and maintenance, making it hassle-free.

Contact us for rentals
https://prodig-shop.com/pages/b2b-reception

Precautions When Purchasing a Used iPhone 15

While used iPhones can be bought affordably, caution is needed regarding quality and avoiding trouble. Here are points you must check before purchasing.

Checking for Red-Locked Devices and Network Restrictions

The biggest risk with used smartphones is "red-locked" devices, which have network restrictions.

This can cause trouble if the previous owner's device payment was unpaid, leading to communication being suddenly cut off after your purchase. A red-locked device cannot be identified from its appearance, so caution is advised for items sold at low prices. Before purchasing, always check if the device's "network usage is restricted: No."

Additionally, it's reassuring to choose a retailer that offers a "permanent red-lock warranty" for exchange/refund even if the device becomes red-locked after purchase. PRODIG provides a warranty on all devices, and in the event of a red-lock issue, free support is available, making it recommended for beginners.

The credibility of the seller and the presence of a warranty are key to avoiding red-lock troubles.

Check Battery Condition and Warranty Details

When choosing a used iPhone, the battery condition is very important. If the maximum battery capacity is below 80%, it can lead to rapid discharge or unstable operation even during daily use. Ideally, choose a device with a battery capacity of 85% or more.

Also, check the retailer's warranty period. If a store only offers a short-term warranty, the burden will be significant in case of initial defects or early deterioration. All devices at PRODIG come with a 180-day warranty, and battery degradation is checked in advance, so you can rest assured. The presence and duration of the warranty directly relate to the "peace of mind" that cannot be determined by price alone.

Before making a purchase decision, be sure to confirm and choose a device that can be used comfortably for a long time.

Learn more about PRODIG's peace of mind warranty
https://prodig-shop.com/pages/guarantee

Verify the Seller's Reliability

Choosing solely based on price can lead to dealing with individual sellers without warranties or companies with poor support. Auctions and flea market apps, in particular, often have no returns or operational guarantees, which carries a high risk.

Specialty used smartphone stores and major electronics retailers typically have systems in place to handle post-purchase issues. Stores with physical locations where you can actually inspect inventory offer a significantly higher sense of security. Shops like PRODIG, which have a store in Akihabara and offer the same quality of service online, are highly trustworthy.

Researching reviews and sales records, and being satisfied with the support system and warranty details before purchasing, is the first step to avoiding disappointment.

Where to Buy? Comparison Points by Seller Type

The iPhone 15 series can be purchased from various places. Here, we'll organize the advantages and disadvantages of each purchase location.

Differences Between Carrier Stores and Used Specialty Stores

Carrier stores offer the peace of mind of purchasing new products through official channels, but at a higher price.

Also, while monthly payments might seem low due to installment plans, the total payment amount is often higher.

On the other hand, used specialty stores often offer the same iPhone 15 for 20-30% less, making them an optimal choice for those who prioritize cost-performance. Furthermore, modern used specialty stores have robust cleaning and inspection systems, and generous warranties, mitigating the risks of red-locked devices and initial defects. If you're looking for a secondary device or want to reduce the financial burden as much as possible, used specialty stores are definitely worth considering. The choice depends on finding the right "balance between budget and peace of mind."

Learn more about PRODIG's peace of mind warranty
https://prodig-shop.com/pages/guarantee

Pros and Cons of Online Shops

Online shops offer the significant advantage of being able to purchase from anywhere in the country and easily compare prices and stock.

Especially by utilizing campaigns and point rewards, you might find better deals than in physical stores.

However, since you cannot check minor scratches or operational feel through a screen, it might cause anxiety for those concerned about the condition. Also, purchasing without thoroughly checking return and warranty conditions can easily lead to trouble.

It's safe to choose a seller like PRODIG, which provides detailed photos, condition information online, and offers a 180-day warranty. If you are located far away, prioritize the combination of "online convenience x reliable warranty."

View the iPhone 15 series lineup here

Peace of Mind with In-Store Confirmation

For those who prefer to "see the actual item before deciding," a physical store offers the most reassurance.

The biggest advantage is being able to inspect the device's exterior and operation with your own eyes, and ask staff questions as you choose.

At PRODIG in Akihabara, we offer a wide selection of inventory similar to our online store, and can demonstrate battery status and operation on the spot.

Furthermore, post-purchase warranty support and maintenance are available in-store, making it an ideal environment for those considering long-term use. If you prioritize peace of mind and support, purchasing in-store with satisfaction is the best way to avoid regrets.

Click here for device trade-in appraisal

Peace of Mind When Purchasing or Renting from PRODIG

When purchasing or renting a used iPhone, choosing a "reliable retailer" is paramount. PRODIG is a shop that combines cost-effectiveness, peace of mind, and extensive support.

All Units Cleaned and Inspected

At PRODIG, all iPhones undergo thorough inspection and cleaning by professional staff before shipment.

The checks cover over 20 items, including battery capacity, LCD display quality, touch responsiveness, button operation, and camera and speaker performance. Furthermore, even minor exterior scratches are inspected individually, and devices that don't meet our standards are not sold.

This rigorous management system ensures the quality of our used products, giving you peace of mind. Additionally, our cleaned devices are hygienic, so you can start using them comfortably from day one. PRODIG's devices are also recommended for those who want to use a product in a condition as beautiful as new.

Comprehensive Warranty and Support

When choosing a used smartphone, concerns about post-purchase troubles and defects are common.

PRODIG offers a standard warranty of up to 180 days to ensure peace of mind after purchase. We flexibly handle not only initial defects but also issues that arise after purchase, offering repairs or replacements.

We are also confident in the quality of main components such as batteries and LCDs, and in the unlikely event of a problem, you can receive support without additional charges. Our support desk is available online, by phone, or in-store, providing an environment where even beginners can quickly get assistance when needed. PRODIG's strength lies in enabling customers to confidently try a used smartphone for the first time.

Available for Purchase Online or In-Store

PRODIG offers the same inventory and services both through its online store and its physical store in Akihabara.

Using the online shop allows you to order 24/7 from anywhere in the country, and compare products carefully with detailed images, specifications, and condition ranks.

In-store, you can physically inspect the device, check its operation and appearance, and consult with staff.

Whether you purchase in-store or online, the warranty and support are the same, ensuring peace of mind either way. Furthermore, for those far away, if any issues arise after purchase, we can handle it via mail. PRODIG is chosen for its flexible purchase methods and nationwide support system.

View all Used iPhones

View the iPhone 15 series lineup here

Conclusion

The iPhone 15 series is a notable model that balances "performance, cost-effectiveness, and ease of use." By combining multiple methods such as used, refurbished, rental, and campaigns, you can acquire it more affordably. To eliminate anxiety during purchase, it's best to choose a device with a warranty from a reliable retailer. Start by checking inventory and prices to make a purchase you won't regret.

Check inventory on the PRODIG official website

View the iPhone 15 series lineup here