In short

If you are looking for the resale value of a used device, this is not that page. Japan has a separate market for goods that are brand new and still sealed, and the prices on this page are what shops in that market are offering right now. A used MacBook and a sealed one are priced by completely different logic here, and the sealed one is usually worth far more.

KaitoriX tracks what Japanese buy-back shops offer for new, unopened items, and updates it daily. Below is what those offers look like today, plus how the process works and who can actually use it.

Most countries treat "selling electronics" as selling used electronics. Japan has both, and they are run by different shops, priced on different scales, and governed by different paperwork. The unopened side is called shinpin kaitori(新品買取)— literally "new-goods buying".

What this page does and does not cover

Covers: what Japanese shops currently offer for items that are new, unused and in most cases still sealed. These are real offers, collected daily from each shop's own published prices.

Does not cover: used or open-box values. We do not hold that data, so you will not find a "my two-year-old MacBook Air is worth X" answer here. For that you want the second-hand market (中古買取), which is a different set of shops.

Why a market for unopened goods exists in Japan

Three things make this market bigger in Japan than almost anywhere else.

Point-based retail. Large Japanese retailers return 5–20% of a purchase as store points rather than discounting the price. Someone who buys to collect points ends up holding a sealed item they never intended to use. Selling it unopened is the normal way to convert that back into cash.

Gift culture. Seasonal gifting(お中元・お歳暮)and corporate gifts put a steady supply of sealed appliances and gadgets into households that did not choose them.

Licensing. Buying goods to resell requires an antique dealer licence(古物商許可), issued by the prefectural police. That barrier keeps the buying side to registered businesses, which is why there are established shops with published price lists at all — and why those lists can be compared.

The result is an ordinary, legal, competitive market. On any given item several shops publish an offer, and the spread between them is often meaningful.

What shops are offering right now — Apple

These are today's highest offers for sealed Apple products across the shops we track. "Shops compared" is how many of them currently publish a price for that exact item.

#ProductShops comparedHighest offer
🥇Mac Studio MHL74J/A シルバー2¥756,000
🥈Mac Studio M3 Ultraチップ MU973J/A [シルバー] 20253¥598,000
🥉MacBook Pro 16.2インチ Liquid Retina XDRディスプレイ M5 Max・メモリ48GB・SSD2TB搭載モデルMGEE4J/A [スペースブラック]8¥567,000
4MacBook Pro 16.2インチ Liquid Retina XDRディスプレイ M5 Max・メモリ48GB・SSD2TB搭載モデルMGE94J/A [シルバー]8¥566,500
5MacBook Pro 16.2インチ Liquid Retina XDRディスプレイ M5 Max・メモリ36GB・SSD2TB搭載モデルMGED4J/A [スペースブラック]8¥525,500
6MacBook Pro 16.2インチ Liquid Retina XDRディスプレイ M5 Max・メモリ36GB・SSD2TB搭載モデルMGE74J/A [シルバー]8¥525,500
7MacBook Pro 14.2インチ Liquid Retina XDRディスプレイ M5 Max・メモリ36GB・SSD2TB搭載モデルMGDU4J/A [スペースブラック]8¥473,500
8MacBook Pro 14.2インチ Liquid Retina XDRディスプレイ M5 Max・メモリ36GB・SSD2TB搭載モデルMGDQ4J/A [シルバー]8¥473,500
9MacBook Pro 16.2インチ Liquid Retina XDRディスプレイ M5 Pro・メモリ48GB・SSD1TB搭載モデルMGE64J/A [シルバー]8¥438,000
10MacBook Pro 16.2インチ Liquid Retina XDRディスプレイ M5 Pro・メモリ48GB・SSD1TB搭載モデルMGEC4J/A [スペースブラック]8¥437,000
11Mac Studio MQH63J/A [シルバー]会員限定1¥412,500
12MacBook Pro Liquid Retina XDRディスプレイ M4チップ 16.2 MX313J/A [スペースブラック]2¥403,000

Home appliances

Large appliances are the quiet half of this market. Unit prices are high, but so are shipping and storage, and several shops will not take anything that exceeds standard courier limits. If you are holding a sealed air conditioner or a vacuum, check whether the shop accepts oversized items before comparing offers — that answer changes your net more than the offer itself does.

Why the same item differs between shops

The spread is not noise. Each shop is quoting against its own resale channel and its own stock position.

  • Stock position. A shop already holding ten of an item quotes low to avoid an eleventh.
  • Resale channel. A shop with an export channel values a camera differently from one selling domestically.
  • Specialisation. Shops that concentrate on one category price it more sharply, in both directions.
  • Shipping terms. Who pays postage, and who pays return postage if the item is rejected, is part of the real price.

This is why a comparison exists at all. On a well-covered item the difference between the best and second-best offer is often small, but on thinly covered items — anything only two or three shops quote — it can be large. The number in the "Shops compared" column is the fastest way to tell which situation you are in.

Timing

Two forces move these prices, and they work in opposite directions.

A successor launching drops the previous model. This is the sharpest single move in the data, and it is announced in advance. If a replacement has been announced and you are holding the outgoing model sealed, that is the moment to decide.

Supply returning drops everything. An item that is hard to buy carries a premium purely because it is hard to buy. When stock returns to shelves the premium goes, often within days.

Seasonality matters less than either of those, with the exception of appliances, where air conditioners and similar move ahead of the season rather than during it.

When an offer beats the retail price

It happens more often than people expect, and always for the same reason: the item is hard to buy at retail. Limited editions, allocation-restricted consoles, discontinued colours, and anything caught in a supply squeeze can all clear their original price.

The opposite is also true and worth saying plainly. For an ordinary item that anyone can walk in and buy today, the offer will be below retail, because the shop has to resell it and make a margin. Nobody pays you more than they can sell it for.

What "unopened" actually means here

This is the single thing that decides which price you get, so it is worth being precise.

  • Unopened(未開封) — the factory seal is intact. This is the price band on this page.
  • Unused(未使用) — the box has been opened, but the item was never used. Usually a step down.
  • Like new(新品同様) — used, but barely. This is second-hand pricing, not the prices here.

Powering a device on is usually enough to move it out of the first two categories. For anything with an account-based setup — phones, tablets, computers — completing the initial setup ties the device to an account and it stops being sellable as new.

How selling works

Almost all of these shops operate by mail(宅配買取)rather than over a counter.

  • Check the offer. Look the item up by model number, not by product name — colours and storage sizes are separate items with separate prices.
  • Apply on the shop's site. You give the item, your address and your bank details.
  • Send it. Some shops pay the shipping, some do not, and that difference can be larger than the difference between their offers.
  • Identity check. Required by law for every transaction — see below.
  • Get paid. Bank transfer, typically within a few business days of the item arriving.

Who can actually use this

Being direct about the limits, because they are real.

You need an address in Japan and a Japanese bank account. Shops ship nothing overseas and transfer to nothing overseas. You also need photo identification — a residence card, driving licence, My Number card or passport. This is not the shop being cautious; the Antique Dealings Act requires the buyer to verify and record who they bought from, on every transaction.

So this market is open to residents of Japan, including foreign residents. It is not usable from abroad. If you are outside Japan and researching what Japanese prices look like, the numbers on this page are still real — they are just not something you can transact against remotely.

How to read the prices on this page

  • Every figure is a shop's own published offer for a specific item, collected daily. They are not estimates or averages of a market.
  • "Highest offer" is the best of the shops that publish a price for that exact item — not a guaranteed payout. Condition and completeness still apply on arrival.
  • Model numbers matter more than names. The same phone in a different colour or capacity is a different item with a different price.
  • Prices move. A new model launching, or stock returning to shelves, changes these numbers within days.

よくある質問

Q
Is this the resale value of a used device?
No. Every price here is for an item that is brand new and unused — in most cases still sealed. Used devices are handled by a different set of shops on a different price scale, and that data is not on this site. If your device has been used, these numbers do not apply to it.
Q
Can I sell from outside Japan?
No. These shops require a Japanese address for shipping and a Japanese bank account for payment, and the law requires them to verify your identity with Japanese-recognised photo ID. Foreign residents in Japan can use them; people outside Japan cannot.
Q
Why would anyone sell something they just bought, unopened?
Usually points. Japanese retailers commonly return 5–20% of the purchase as store points instead of cutting the price, so buying an item and selling it sealed can leave you ahead. Gifts and corporate giveaways are the other main source.
Q
Can an offer really be higher than the retail price?
Yes, when the item is hard to buy at retail — limited editions, allocation-restricted consoles, discontinued colours. For anything freely available in shops today, the offer will be below retail, because the shop has to resell it at a margin.
Q
What happens if I open the box?
You move from \"unopened\" to \"unused\", which is normally a lower band. If you power the device on and complete setup, it is no longer sellable as new at all — for account-based devices the setup ties the unit to an account.
Q
Do I need the original packaging and accessories?
Yes. Missing accessories, manuals or the outer box all reduce the offer, and for some categories the shop will decline the item without them.
Q
Is buying goods to resell legal in Japan?
Buying goods with the intention of reselling them requires an antique dealer licence (古物商許可) from the prefectural police. Selling your own possessions does not. If you plan to do this repeatedly as a business, get the licence first.
Q
How current are these prices?
They are re-collected from each shop every day. The page you are reading is generated at the moment you load it, so the figures are the latest we hold.
Q
Why do shops differ so much on the same item?
Each shop has its own resale channel and its own stock position. A shop that already holds ten of an item will bid low; one with a waiting buyer will bid high. That is why comparing is worth the few minutes it takes.
Q
Which shops are these?
Japanese buy-back retailers that publish their offer prices openly. We collect from each of them daily and show the highest current offer alongside how many shops are quoting that item.