THE SHOPPING EDITTopic studyJapan × Taiwan

How to Buy 3COINS Travel Items: The ¥330 Glasses Case Is Worth Grabbing, the Vacuum Compressor Is Cheaper in Taiwan

A glasses case, a luggage strap, and a vacuum compressor all look travel-friendly at first glance. But converting the yen prices back to NT dollars tells a different story: saving space with the vacuum compressor doesn't mean saving money by buying it in Japan.

TravPrice deskPublished Checked through 3 same-item comparisons · about 2 min read
On this page · 9 sections
  1. Verdict
  2. Glasses Case: Only Worth Grabbing If You Actually Need One
  3. Luggage Strap: Only If You Need to Secure Something — Then Look at This ~NT$20 Gap
  4. Vacuum Compressor: Don't Buy It Just Because It's Cheaper in Japan
  5. How to Sequence Your Purchases: Don't Save Everything You Need Before Departure for Japan
  6. The gap in one chart
  7. Price table
  8. FAQ
  9. Sources
Same-item pairs3 items
cheaper in Japan2 items67% · median save 8.7%
Save the mostNT$303COINS Eyeglass Case
cheaper in Taiwan1 itemsup to NT$33 · 3COINS Japan…

01 · Verdict

3 same-item comparisons

List the function first, then compare prices. The glasses case is ¥330 in Japan (about NT$69) vs. NT$99 in Taiwan; the luggage strap is ¥1,100 in Japan (about NT$228) vs. NT$250 in Taiwan. The vacuum compressor is also ¥1,100 in Japan, but only NT$195 in Taiwan. In this list, the vacuum compressor is the one item worth a second thought — don't buy it just because you spotted it in Japan.

  • Glasses case: ¥330, about NT$69; Taiwan reference price NT$99.
  • The luggage strap has a price gap of about NT$22 — first consider when you'd actually need to use it.
  • The vacuum compressor's Taiwan reference price is NT$195, about NT$33 lower than the converted Japan price.

This piece was compiled on 2026-09-16, using prices verified in both markets on 2026-09-11 to 12 and the Bank of Taiwan spot selling rate on 2026-09-10 (1 JPY = NT$0.2076); prices were not re-checked on the publish date. The body compares list prices as sourced, excluding tax refunds, card fees, and shipping; see the comparison table for each retailer, spec, and date. This is data analysis, not hands-on testing or a market-wide lowest-price survey.

02

Glasses Case: Only Worth Grabbing If You Actually Need One

Folding glasses case: Japan ¥330, about NT$69; Taiwan NT$99, buying in Japan saves NT$30. Japan source: PAL CLOSET (3COINS official channel) (2026-09-12); Taiwan source: momo in-house (shipped direct from Japan) (2026-09-12).

This item's Japan list price is lower, saving about NT$30. It suits someone who already has "broken glasses case, needs replacing" on their list; if you just think the color is cute, the low price alone isn't a reason you must buy it. The recorded data is for the folding style — don't compare it directly against a hard-shell zip case.

03

Luggage Strap: Only If You Need to Secure Something — Then Look at This ~NT$20 Gap

Luggage strap: ¥1,100 in Japan, about NT$228; NT$250 in Taiwan — buying in Japan saves NT$22. The Japan source is PAL CLOSET (3COINS' official online store) (2026-09-12), and the Taiwan source is a momo third-party storefront shipped directly from Japan (2026-09-12).

Japan and Taiwan's converted prices differ by only about NT$22. If you need it before you leave, it's more practical to confirm delivery time through a Taiwan retailer before buying; if you only realize you need it once you're in Japan, you can use this price as a reference. The price gap isn't enough to prove it's sturdier than other straps — this piece didn't run any load-bearing, durability, or slip tests.

04

Vacuum Compressor: Don't Buy It Just Because It's Cheaper in Japan

Automatic Vacuum Compressor: Japan ¥1,100, about NT$228; Taiwan NT$195, buying in Taiwan saves NT$33. Japan source: 3COINS (2026-09-11); Taiwan source: momo third-party seller (cross-border direct from Japan) (2026-09-12).

This Taiwan price is about NT$33 lower. The Taiwan reference price comes from a momo third-party cross-border listing shipped directly from Japan, so check the shipping fee and delivery time separately. This counterexample shows that "an influencer recommended it" and "where to buy it" can be judged separately.

This model is recorded as a 90g, 1200mAh automatic vacuum compressor; the price for the unit alone doesn't mean it includes all the compression bags. Confirm whether you already have a compatible bag opening and the accessories you need before calculating the full set's cost. Compression storage changes how much space clothing takes up — it doesn't reduce your luggage's weight.

05

How to Sequence Your Purchases: Don't Save Everything You Need Before Departure for Japan

You can split this into two columns first: things you'll definitely need during the trip, and things you'll decide whether to restock once you're in Japan. If you need to secure your luggage on the way there, handle the strap first; if your current glasses case still works, there's no rush to replace it; for the vacuum pump, compare the unit itself, bags, and other costs together.

The Taiwan reference prices for these three items come from retailers already logged here; that doesn't mean 3COINS runs the same directly-operated stores in Taiwan, nor is it the lowest price market-wide. See the comparison table below for the retailer and matched spec; still verify the current list price before ordering.

06

The gap in one chart

How much you save per item (Japan converted vs Taiwan list)cheaper in Japancheaper in Taiwan
  1. 3COINS Eyeglass CaseSave NT$30
  2. 3coins Luggage Strap,…Save NT$22
  3. 3COINS Japan Automatic…Taiwan cheaper NT$33

amounts are converted list prices, without tax-free, card fees or shipping. Full figures are in the table below.

07

Price table(3 items)

Japan × Taiwan · prices in this piece
ProductJapan listConvertedTaiwan listGap
3COINS Eyeglass Case折りたたみ式メガネケース(3COINS,PU/PVC/鐵/磁鐵材質,多色,SKU 72070508)¥330PAL CLOSET (3COINS official channel)NT$69NT$99momo自營(日本直送)30.8% cheaper in JapanNT$30 ·checked 2026-09-12
3coins Luggage Strap, Secures to Suitcase…3COINS(スリーコインズ) スーツケースベルト¥1,100PAL CLOSET (3COINS official online shop)NT$228NT$250momo購物網(第三方賣場,日本直送)8.7% cheaper in JapanNT$22 ·checked 2026-09-12
3COINS Japan Automatic Vacuum Compressor,…Automatic vacuum compressor; part no. 2524-3C7B176-00; approx. 4.5cm diameter × 6.6cm H, 90g; 1200mAh, 18W, 3KPA¥1,1003COINSNT$228NT$195momo購物網(第三方賣場,日本直送)17.1% cheaper in TaiwanNT$33 ·checked 2026-09-12

FX: Bank of Taiwan 2026-09-10 spot selling JPY/TWD 0.2076, USD/TWD 31.625.The table excludes tax-free and fees; tax-free estimates follow each product’s stated basis and rate, see the product page.

08

FAQ

Does a compressor make luggage lighter?
No. Compression packing changes the space something takes up — the clothing's actual weight doesn't decrease because of it. Whether to buy one should depend on your packing needs and compatible accessories.
Is the Taiwan price in this article 3COINS' official Taiwan website price?
No. This article uses prices already logged from Taiwan retailers — see the comparison table for each retailer; don't treat it as the brand's official Taiwan pricing.

09 · Sources

Ranks, prices and FX keep their source links and check dates; the piece is written with the TravPrice comparison method and has no hands-on review or test score.

Listed prices
Japan and Taiwan official or channel list prices for 3 productsChecked through 2026-09-12; each source link is in the price table and product page.
FX
Bank of Taiwan FX ↗Bank of Taiwan spot selling reference rate; the US dollar is cross-converted · JPY/TWD 0.2076 · USD/TWD 31.625 · 2026-09-10 23:22:00 (Taiwan time)
Published and updated
This piece was compiled on 2026-09-16, using prices verified in both markets on 2026-09-11 to 12 and the Bank of Taiwan spot selling rate on 2026-09-10 (1 JPY = NT$0.2076); prices were not re-checked on the publish date. The body compares list prices as sourced, excluding tax refunds, card fees, and shipping; see the comparison table for each retailer, spec, and date. This is data analysis, not hands-on testing or a market-wide lowest-price survey.
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