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Japan Sim Card

Fail

Shoppers spend an estimated $23K a year here, so Japan Sim Card is a Fail.

Flapen Score
39
39 / 100
Ranks 1,740 of 2,221 Cell Phones & Accessories niches · −7 vs the category median of 46
Market size
$23K/yr21K searches / yr
90-day growth
-11.9%search demand this quarter
Competition
74%top-5 click share · 7 brands · 9 sellers

Flapen Score

Japan Sim Card against its category

The dotted line is the Cell Phones & Accessories average. Past it, Japan Sim Card is stronger. Inside it, weaker.

39Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Japan Sim Card market on Amazon at a glance

Shoppers on Amazon United States searched for Japan Sim Card 21K times last year and spent an estimated $23K. The top 5 brands take 95% of clicks. Flapen scores it 39 out of 100, a Fail.

01 · Demand

An estimated 4.8% of those searches ended in a purchase.

Shoppers searched for this 21K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 4.8% of those searches ended in a purchase. Searches in the last 90 days moved -11.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $23K a year.

Searches, last 12 months
21K
Growth, 90 days vs prior 90
-11.9%
Conversion, latest week
4.8%
Market size, estimated
$23Ka year
Peak month
December1.4× the quietest month
Top search term
japan sim card12K searches a year

02 · Price

A sale here is worth $22.36.

Listings sell for $22.36 on average, from $15.85 to $36.44. Amazon reports units sold in ranges. This niche sold 750 to 1K a year. The average listing sells 0 to 100 of them. At $22.36 that is $0 to $2K a year per listing.

Average price
$22.36inside the $15 to $100 sweet spot
Price range
$15.85–$36.44
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
750–1K
Units per listing a year
0–100
Revenue per listing a year
$0–$2K
Returns
4.4%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is low.

77% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 10.6% of listings are out of stock. The average listing ranks #127 within SIM Cards & Prepaid Minutes. It carries 1,225 reviews at 3.95 stars, so a new listing needs social proof before a better product.

Sponsored listings
77%
Prime listings
100%
Out of stock, average day
10.6%
Average rank
#127in SIM Cards & Prepaid Minutes
Average rating
3.95 starsAmazon United States average 4.42 stars
Average reviews
1,225per listing
Listings tracked
13

04 · Newcomers

0 of last year's 4 launches cleared the first-year sales bar.

4 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 27 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
4
Successful launches
0Amazon's first-year sales bar
Average brand age
27 months

Products

Top Japan Sim Card products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 8, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 74% of clicks. A locked shelf that new listings rarely crack.

$0$2K$5K$7K$9K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

7 falling

Sellers

9

Est. top-5 brand share

95%

Top 20: 100%

Est. top-5 click share

74%

Top 20: 100%

Open market

2%

  • Nippon SIM56%
  • SIM2ROAM13%
  • TSIM10%
  • Hello Japan SIM9%
  • HAPPY TELECOM7%
  • ENC Mobile3%
  • Open — no brand owns it (1 brand, 2%)

Demand

Japan Sim Card search demand

Weekly searches over the year, seasonality beneath. Pick a range.

900700Holiday '24Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Search terms

Top Japan Sim Card search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • japan sim card12K/yr
  • japan sim2K/yr
  • sim card japan2K/yr
  • japan sim card 15 days2K/yr
  • japanese sim card2K/yr
  • nippon sim520/yr
  • japan sim card unlimited data772/yr

Reviews and returns

What reviews say buyers love and hate about Japan Sim Card

We read the reviews and the return reasons for every product selling here.

17%of positive reviews mention “Connectivity-Overall”
26%of negative reviews mention “Functionality-Overall”
4.4%of orders come back
“not working”
A buyer, on “Functionality-Overall”26% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

14 topics

NegativePositive

FAQ

Common Japan Sim Card questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data