データを読み込み中です…
購入時の付属品があると、査定金額が上がる場合がございます！
スマホはバッテリー寿命が査定に影響しやすいです！
査定では外装や各パーツのコンディションを重視しております。使用感の少ない商品は査定面で有利です！
Only staff with over 5 years of experience as smartphone buyers perform our appraisals. From a seasoned "professional" perspective, we provide fair and accurate evaluations that major buyback companies—which often leave appraisals to part-time workers—simply cannot match.
By specializing entirely in mail-in buybacks, we successfully minimize overall operating and sales costs. We pass those savings directly back to you, allowing us to offer higher buyback prices than standard physical storefronts.
We maintain a strict pulse on shifting market rates through continuous, thorough market research. By selecting the highest-paying buyers from our vast global network of sales channels, we consistently deliver premium buyback payouts.
We sell used smartphones directly to consumers. By eliminating unnecessary middlemen like wholesalers and auction platforms, we maximize profitability and pass those savings directly back to our customers through higher buyback prices. Additionally, we focus primarily on mail-in buybacks and avoid opening storefronts in prime, expensive locations. By consolidating our warehouses and in-house repair facilities into a single location, our company operating costs are kept under half of what our competitors spend. Because this surplus is fully returned to you in the buyback price, we can achieve high-value payouts that cannot be beaten by anyone else.
The value of a smartphone skyrockets when it is repaired before being sold! In our company, we handle everything completely in-house—from broken smartphones to minor scratches and battery replacements. By insourcing our repairs rather than outsourcing them, we maximize the final resale value while minimizing middleman expenses, which allows us to offer higher buyback payouts to our customers. Leveraging the technical expertise built from our roots in computer buybacks, our repair capabilities and technical prowess stand second to none.
Due to factors like foreign exchange fluctuations, most buyback operators change their payout amounts within a matter of days—even for the exact same item. It is quite common to hear, "The buyback price dropped compared to yesterday!" However, because YTH Smartphone possesses sales networks spanning across the globe, including the United States and China, we turn foreign exchange fluctuations into an advantage. This enables us to offer ultra-high buyback rates that other companies simply cannot match.
Security incidents are occurring frequently at buyback stores... Unfortunately, there are many operators—even among major companies—that buy back smartphones despite lacking proper technical expertise. Their appraisers are often just part-time workers, which is why these incidents never decrease.
At our company, we have a proven track record of being trusted by major entities, including pharmaceutical companies that handle sensitive patents, to manage the buyback of their PCs and equipment—with full security guaranteed. Our security standards have received stamp-of-approval endorsements from American third-party organizations, Amazon, Apple, and our valued customers. Please feel completely at ease using our services. We provide a service designed to protect you, your precious family, and your friends.
"What if it gets broken during transit?"... There is no need to worry. In the unlikely event of an accident during transit, we will immediately and absolutely guarantee compensation up to 30 million yen! We have formed a special alliance with Yamato Transport, allowing us to swiftly and carefully deliver a safe, secure buyback service. All you have to do is pack your items into our free mail-in kit and send it over! Even if you decide to cancel the buyback, everything is handled completely free of charge, including return shipping and appraisal fees.
In this fast-paced industry, offering high-value appraisals requires a deep understanding of current trends alongside accurate technical data! It is precisely our deep expertise that enables us to push our appraisal offers to the absolute limit. Our appraisers form an expert team where every single member holds professional certifications.
Our team consists entirely of individuals who previously worked in standard corporations as system engineers, security personnel, or IT department specialists; every one of them can assemble a PC or smartphone from scratch, component by component. We invest heavily in employee education, ensuring everyone—from our youngest recruits to seasoned veterans, and even our CEO—is constantly updating their knowledge through both internal and external training programs.
Furthermore, our training goes beyond technical smartphone and PC education. We also invite external instructors to conduct workshops on business etiquette and communication. We do this specifically to ensure that, even within a non-face-to-face mail-in buyback service, we can provide clear, polite, and thoroughly satisfying explanations and communication. We will continue to pursue the highest quality—not just in our buyback prices, but in loyalty and speed as well!
To maintain the quality of their products, Amazon and Apple run authorized product programs. Our company is one of only a handful of operators in Japan permitted to sell refurbished products under these strict standards, which are normally unavailable to standard sellers.
This high-quality service is only possible because we are a rare all-in-one operator that manages everything—from buybacks and repairs to final sales—seamlessly under a single roof. From flawless data security to component handling and fair pricing, we consistently meet and exceed rigorous global standards across every metric.
First, Apply
Pack and Ship
Notification of Appraisal Results
Immediate Payment Upon Agreement
If you have a smartphone you would like appraised, please feel free to submit an application.
We accept requests via Phone, LINE, or Email (via our request form). Once your application is received, we will ship out a dedicated mail-in kit from our shop.
Once your mail-in kit arrives, please fill out the required documents and pack your item along with a copy of your ID (such as a driver's license). For shipping back to our shop, a pre-addressed shipping label is included in the kit, so you only need to fill in your name and address.
Once your item arrives at our shop, we will send you an arrival confirmation notice and begin the appraisal. We will contact you with the appraisal results within 1 to 3 days.
If you agree to the buyback amount:
We will transfer the funds to your designated account on the same day or the following business day.
In case of cancellation
We will return your item to you by mail. Please rest assured that our shop will cover the return shipping costs.
Once you are satisfied with the appraised value, we will transfer the funds directly to your designated bank account.
正直、売るより先に『箱がない…どうしよう』で止まっていました。 梱包キットを用意してもらえるので本当にラクで、しかも箱がしっかりしていました。 安心感があるまま送れたのが良かったです♪
（大阪府 I・Y様 40代男性）
ずっと『機種変更するなら携帯ショップで全部おまかせ』と思っていました。 ネットで見かけた『自分で売ったほうがお得なこともある』という話が本当だと分かりました。 結果的にその判断が正解でした♪
（東京都 A・T様 20代男性）
問い合わせる前は『ちゃんと金額がつくのかな』と少し不安でした。 細かなところまで見たうえで査定していただき、予想より良い金額になりました。 嬉しい意味で予想が外れました♪
（千葉県 R・H様 30代男性）
自分でも多少は知識があるつもりでした。 実際はそれだけではなく、細かな状態も含めて公平に見てもらえました。 プロにお願いする意味を感じました♪
（京都府 I・Y様 40代男性）
売却で一番気になっていたのは、やはり個人情報の扱いでした。 初期化の方法や社内での運用が分かりやすく説明されていて、不安がかなり減りました。 安心して任せやすかったです♪
（山口県 K・K様 40代女性）
高価なものを送るので、最初はかなり慎重になっていました。 そのあたりの説明が分かりやすく、しかもキャンセル時の送料面まで良心的でした。 利用者目線だと感じました♪
（福岡県 A・T様 20代女性）
"YTH Smartphone Buyback" is a specialized smartphone buyback and retail sell shop located in Kawaguchi City, Saitama Prefecture. Every day, we receive appraisal requests from customers all across the country, helping countless people turn their "I want to sell!" into reality.
Whether you are looking to upgrade to a new device, trying to dispose of an old phone you no longer use, or looking to sell a device that other shops have rejected, we buy them all—and at "shockingly high" prices.
While offering premium payout rates is a given, we also deeply value the unique stories, backgrounds, and personal sentiments of each and every customer. Our entire staff will continue to give 100% to ensure that you walk away fully satisfied, thinking from the bottom of your heart: "I'm so glad I reached out to YTH Smartphone Buyback."
CEO
Tatsuya Yokoyama
A veteran buyer who leverages years of IT industry experience and an extensive network to distribute smartphones worldwide. The strict security compliance drilled into him during his previous career has given him an industry-leading awareness level and system-building capability.
"I always strive to provide a kind, helpful, and thorough appraisal experience. Please feel free to reach out to us anytime!"
Staff
Natsuko Osawa
Formerly employed at a major telecommunications carrier. She has been immersed in the smartphone industry since its infancy. Her ability to quickly spot market trends and break them down for customers in a clear, easy-to-understand manner is second to none.
Staff
Yuki Watanabe
Formerly with a foreign-affiliated IT firm. Leveraging her international work experience in cities like New York, she belongs to our Global Sales Channel Development Team.
Staff
Shino Yamanaka
An experienced buyer who previously worked at a mobile carrier retail shop. Having supported countless customers at the counter with device upgrades and new contracts, she knows the ins and outs of the mobile industry.
"Right now, selling your device yourself is without a doubt the smartest and most profitable way to go!"
Staff
Manho Kang
A technical expert whose skills are second to none on the team. He is highly knowledgeable about smartphones, tablets, and the latest gadget trends. By utilizing our unique international connections to expand our global sales channels, he helps us deliver even higher buyback payouts to you!
Staff
Naoki Furuya
A sharp, capable buyer who honed his skills at a major secondhand retail chain. Highly respected within the industry, he possesses an exceptional depth of knowledge and experience. He perfectly tracks the ever-shifting trends of the smartphone market to consistently offer the most beneficial solutions from a customer's perspective.
The price is determined based on the balance of supply and demand as well as current market trends, while also taking the item's specifications and condition into account. Newer models are popular, and those with higher storage capacity tend to fetch higher prices.
We offer higher appraisal values for items that come with all accessories and are in near-new condition. Having the original box and instruction manual is also a plus.
Of course, we would be happy to buy it! We have dedicated staff on-site with the technical skills to repair and clean items. As long as the device can be reset to factory settings, we can restore it and sell it at a high price. Because of this, we are able to offer higher purchase prices for broken or non-functional items compared to other stores.
No problem at all! We offer free initialization after purchase. Furthermore, if you would like to have your device initialized before the appraisal, we can walk you through the process for free via phone or LINE, so please feel free to reach out to us.
Yes, we'd be happy to buy it! Please feel free to contact us via any of the phone, LINE, or email icons at the bottom of the page, and our appraiser will carefully guide you through the process..
There is absolutely no risk of your information being leaked. Once we have your consent, we use specialized tools to factory reset the device, ensuring that no information is leaked externally. In the unlikely event that a reset is impossible (e.g., the screen is unresponsive or the device won't power on), we will physically destroy the components to ensure no third party can retrieve your data, so you can rest assured."
Please rest assured. Our store is insured for up to 30 million yen in shipping insurance. In the unlikely event that your items are damaged during delivery, we will provide compensation.
Of course! We never refuse an appraisal just because the original box, charger, or other accessories are missing. Even for the unit alone, we still provide high-value assessments.
Please rest assured, you won't be charged a single yen. Furthermore, in the event that your items are returned, our store covers the full cost of shipping, so there will be no expense to you.
As long as there is no network usage restriction on the device, you’re good to go. If you'd like to check the current status of your phone, please feel free to ask—we can look it up for you.
Of course, we will buy it from you, so please rest assured.
We will contact you within one to three days after your item(s) arrive. (Please note that this timing may vary slightly depending on the volume of receipts.)
We also offer appraisal notifications via LINE or email, so please let us know if you would prefer either of those methods.
You will need to provide one of the following forms of identification: a passport, a Residence Card, a Special Permanent Resident Certificate, or an Alien Registration Certificate.
Signs of Use or Damage?OK!
Broken Devices areOK!
Non-Functional Devices areOK!
Old Models areOK!
Items determined to be counterfeit or fake
Non-mobile related products
"Bulk" dummy goods (mockups / empty shells)
3F Charles I, 4-26-19 Totsuka, Kawaguchi City, Saitama Prefecture, 333-0811
*We are operated concurrently alongside "Camera Buyback YTH" (premium camera buy and sell) and "PC Buyback YTH" (premium PC buy and sell).
*We are operated concurrently alongside "Camera Buyback YTH" (premium camera buy and sell) and "PC Buyback YTH" (premium PC buy and sell).
Feel free to ask any question!
