TravPriceProduct note · Japan × US18.9% cheaper in Japan
Is iRobot Roomba Plus 405 Combo Robot Vacuum & Mop cheaper in Japan? the US vs Japan, a US$151.42 gap | 2026 price check
Cheaper in Japan by US$151.42 (18.9%): Japan ¥98,800 ≈ US$648.57, the US US$799.99.
01 · Verdict
18.9% cheaper in Japan- Japan list price
- ¥98,800incl. tax · chain retailer product page list price incl. tax ([Genuine Japan-market product] Roomba Plus 405 Combo robot + AutoWash charging station G185060, online-store-exclusive) · In stock
- Converted US currency
- ≈ US$648.57JPY/USD 0.006564 · Bank of Taiwan board
- US list price
- US$799.99excl. tax · US chain retailer list price (Target; US SKU G185020, same Roomba Plus 405 Combo as Japan G185060) · Listed
- cheaper in Japan
- US$151.4218.9% · US list price as denominator
US stickers exclude state and local tax; Japan stickers include tax. The bases differ, so this is not a landed cost.
Japanincl. tax、the USexcl. tax; where the tax basis differs, only the list prices are compared; a comparison of two named sources’ list prices, before card fees, shipping and tax refunds. Checked 2026-09-19. Before you order, use theJapan source page and the US source pagecurrent prices.
Japan vs US price table
| Market | List price | Source · checked | Tax basis · stock |
|---|---|---|---|
| Japanchain retailer product page list price incl. tax ([Genuine Japan-market product] Roomba Plus 405 Combo robot + AutoWash charging station G185060, online-store-exclusive) | ¥98,800 | ビックカメラ.com ↗ | incl. taxIn stock |
| USUS chain retailer list price (Target; US SKU G185020, same Roomba Plus 405 Combo as Japan G185060) | US$799.99 | Target ↗ | excl. taxListed |
| Japan convertedJPY/USD 0.006564 (JPY/TWD 0.2076 ÷ USD/TWD 31.625) | US$648.57 | Bank of Taiwan rate ↗ | Spot sellingNot a card or cash rate |
| Gapcheaper in Japan | US$151.42 | 18.9%US list price as denominator | Extra fees not includedCard fee, shipping and tax-free extra |
To use your own FX, fees and shipping, open the Price calculator.
Is it worth buying in Japan?
Japan ¥98,800 (Bic Camera.com, genuine domestic stock, incl. tax), Taiwan NT$12,999 — both are list-price snapshots as of the check date; shipping, tax refunds, and card fees are not included. Taiwan's retailer promotional price for this unit is far below Japan's chain list price, making it one of the rare appliances where buying in Japan actually costs much more.
- With a 1.5% foreign card fee: Japan comes to about US$658.29, still below the US by US$141.70.
- Break-even rate 0.0081 USD/JPY: above it the the US sticker is the cheaper one (this check used 0.0066, cross-converted from the Bank of Taiwan yen and dollar rates).
Before you buy
- Only paired when the model, bundle, and version match: both Japan and Taiwan are the Roomba Plus 405 Combo + AutoWash dock (G185060).
- Japan price is taken from the chain retailer's product page (Bic Camera.com, genuine domestic stock), not from a general Rakuten storefront or the lowest price on a price-comparison site.
- The Taiwan price is a promotional price from momo's own direct-sale channel; it may revert to the original price once the promotion ends. Price and stock follow the page on the day of verification.
05 · Sources
Each price keeps its source link, price kind, tax basis and check date, and is calculated with the TravPrice comparison method. If a price or model is wrong, check the source page and report it.
- Japan price
- ビックカメラ.com ↗chain retailer product page list price incl. tax ([Genuine Japan-market product] Roomba Plus 405 Combo robot + AutoWash charging station G185060, online-store-exclusive) · incl. tax · In stock · checked 2026-09-12
- US price
- Target ↗US chain retailer list price (Target; US SKU G185020, same Roomba Plus 405 Combo as Japan G185060) · excl. tax · Listed · checked 2026-09-19
- FX
- Bank of Taiwan FX ↗Bank of Taiwan spot selling reference rate; the US dollar is cross-converted · JPY/USD 0.006564 (JPY/TWD 0.2076 ÷ USD/TWD 31.625) · 2026-09-10 23:22:00 (Taiwan time)
- Model match
- Roomba Plus 405 Combo / self-emptying, mop-washing, and self-drying (AutoWash)Japan is Bic Camera.com's product page '[Genuine Domestic Product] Robot Vacuum Roomba Plus 405 Combo Robot + AutoWash Charging Station G185060 (online-store-exclusive),' ¥98,800 incl. tax; iRobot's official Rakuten Ichiba store page for the same item was priced at ¥99,706 as of 2026-09-12. Correction note: this entry originally recorded ¥45,800 (sourced as 'Rakuten Ichiba product page price,' taken from iRobot's official Rakuten store page); reopening that page on 2026-09-12 could not reproduce that figure, and it was roughly half the Japan chain/official price, so it was judged a misread and replaced with the chain retailer's product page price. Taiwan is momo's own store '[iRobot] New Roomba Plus 405 Combo All-in-One Vacuum-Mop Robot (Dust Collection, Pad Washing, Self-Drying, Dual Spinning Mops, 70x Suction),' i_code 13873753, listed at NT$12,999 (re-verified 2026-09-12). Both sides are the same Roomba Plus 405 Combo + AutoWash charging dock, matching model G185060; Taiwan's price here is a retailer promotional price, and the gap from Japan's official pricing is very large — please check the page as of your purchase date before buying.
- Official product page
- Brand product page ↗Product images on this site are redrawn illustrations; use the official page for appearance, extras and packaging.
- This page generated
- Generated from the same checked data; it is recalculated when the data updates.
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