• Home
  • Helpful Articles
  • How to buy a used iPhone 7 cheaply and securely | Tips for first-time buyers to avoid mistakes
中古iPhone7を安く・安心して買う方法|初めてでも失敗しないポイント解説

How to buy a used iPhone 7 cheaply and securely | Tips for first-time buyers to avoid mistakes

"I want to keep my smartphone costs down as much as possible."

"I'm looking for a used iPhone 7 but I have some concerns."

For those individuals, this article explains how to acquire a used iPhone 7 cheaply and with peace of mind. We'll address common concerns with used smartphones such as "red-listed" devices, battery degradation, and lack of warranty, while outlining key points for choosing a reliable device. Furthermore, we'll introduce trustworthy retailers, optimal purchasing times, and tips for leveraging campaigns. We've compiled useful information even for those who are hesitant about used items.

 

 

Summary of How to Get a Used iPhone 7 Cheaply

Options such as older models, capacity selection, certified used, and sales

The iPhone 7 is a model released in 2016. While its specifications are inferior to current models, it is still perfectly adequate for basic uses (SNS, LINE, browsing, video viewing, etc.). It is widely available in the used market, and can sometimes be purchased for under 10,000 yen. If you want to purchase it even cheaper, the following options are effective:

  • Prices vary significantly depending on whether you choose 32GB or 128GB capacity (128GB is more expensive).

  • Carrier-locked devices can be purchased cheaper than SIM-free ones.

  • Look for devices at retailers that offer a performance warranty, even if they are not Apple Certified Refurbished.

  • Aim for sales on older models or clearance items.

  • Avoid auctions and flea markets, and purchase from a reliable vendor.

Pros and Cons of Each Method (Price, Warranty, Flexibility, etc.)

Method Pros Cons
Purchasing older models Very low price Support ending soon, potential for battery degradation
Carrier-locked Lower device price Limited SIM options, may require effort to unlock
Non-certified used Affordable pricing Varying conditions, sometimes no warranty
Utilizing sales Even cheaper than market price Dependent on timing, limited stock

Choosing a method that suits your usage habits will allow you to make a cost-effective purchase without overspending.

Click here for PRODIG's sale items

Recommended Retailers and Comparison of Reliability

Iosys / Nicosuma / Geo Online / PC Kobo / PRODIG

Major retailers that handle used iPhones each have different strengths.

  • Iosys: Extensive inventory and price range. Detailed grading and explicit warranty.

  • Nicosuma: Quality control close to Apple Certified Refurbished. Strong in pristine condition items.

  • Geo Online: Warranty and stable inventory from a major reuse shop.

  • PC Kobo: Linked with physical stores, sometimes allowing for in-person inspection.

  • PRODIG: Has a physical store in Akihabara, with all items undergoing operational checks, cleaning, and red-list warranty.

Among them, PRODIG offers high transparency in condition verification and smooth handling of any issues. In-store purchases are also available, providing peace of mind for those with concerns.

 

Check PRODIG's peace of mind warranty system

 

Differences in Inventory, Price Range, Warranty Period, Battery Information, and Red-Listed Device Countermeasures

Retailer Inventory Price Range Warranty Battery Info Red-list Warranty
Iosys Low-Mid △ (Partial)
Nicosuma Mid-High
Geo Low-Mid ×
PC Kobo Mid
PRODIG Mid ◎ (No degradation stated)

In terms of warranty and transparency of information, PRODIG is a particularly reassuring option.

 

Checkpoints for a Secure Purchase

Checking for Red-listed Devices / Network Restrictions / Battery Degradation

The most common issue to avoid with used smartphones is "red-listing." This refers to the risk of a device suddenly becoming unable to communicate if the previous owner defaulted on their payment plan. The following checks are important:

  • Check for network usage restrictions using the IMEI number (can be done on docomo/au/SoftBank official websites).

  • Check the maximum battery capacity under "Settings > Battery > Battery Health."

  • If it's below 80%, degradation is advanced, and replacement is recommended.

Some shops may list this information. PRODIG states "no degradation" and "red-list warranty included," allowing for pre-purchase verification.

Importance of Rank Notation, Actual Photos, and Operation Warranty

To reduce anxiety when buying used goods, "visible information" is key.

  • Condition rank notation (e.g., A-C ranks)

  • Displaying actual photos of the item (not just stock images)

  • Clear indication of warranty period and scope (e.g., "operational warranty for X days")

By choosing a retailer that provides clear information, you can significantly reduce risks such as "it had more scratches than I thought" or "it broke down quickly."

 

Best Times and Tips for Buying at a Discount

Timing when prices of older models drop (e.g., right after new model announcements)

New iPhone models are released every September, so the period immediately after is a prime target. When the iPhone 15 is announced, older models like the 7 and 8 tend to see a sharp drop in price. Additionally, prices are likely to fall during the following times:

  • Fiscal year-end months (March and September)

  • New Year's sales

  • Black Friday and summer sales periods

Based on past market trends, prices often drop by about 1,000 to 3,000 yen, so it's worth checking if you're considering an upgrade or a first-time purchase.

How to utilize sales, campaigns, and point rewards

To buy cheaply, it's not just about simple price reductions, but also about leveraging campaigns.

  • Point rewards on Rakuten Rebates and PayPay Mall

  • Store-specific free shipping campaigns

  • Special sales on outlet and slightly defective items

PRODIG occasionally offers "coupon distributions" and "bulk purchase discounts." Following their official X (@prodig_inc) will ensure you don't miss out on these opportunities.

 

Benefits of Buying a Used iPhone 7 at PRODIG

Peace of mind with operation checked / red-list warranty / visual inspection of goods

At PRODIG, only devices that have undergone "operation checks" and "cleaning" are sold. Furthermore:

  • Includes a red-list warranty (support in case of network restriction occurrence)

  • Clearly indicates no battery degradation

  • Purchases and consultations are also possible at the Akihabara physical store

Even for first-time used smartphone buyers, the peace of mind is on a different level.

PRODIG's Used iPhone 7 Lineup

The appeal of the "smartphone recycling model" that combines buying and selling

PRODIG also actively buys back unwanted smartphones, offering:

  • Trade-in of devices to offset purchase funds

  • Immediate appraisal and buyback at the store

  • Ability to purchase the next device on the spot simultaneously with selling

This enables a "smartphone recycling model." Options like selling an iPhone 7 and upgrading to a newer model become smooth and easy.

PRODIG Buyback Page

Finally

A used iPhone 7 can be a very cost-effective smartphone if you choose the right condition and retailer. Especially at stores like PRODIG, which handle products that have undergone operation checks, red-list warranties, and degradation checks, concerns common with used items are mitigated.

The smartphone purchase process is: "information gathering → checking key points → selecting a retailer → purchasing → after-sales support." PRODIG is a particularly recommended option as it allows you to complete all these steps at a single store.

We hope your first used smartphone purchase or acquisition of a second device is a satisfying one.

 

PRODIG's Used iPhone 7 Series Lineup

Back to blog
Category list