Cheapest Pull-Up – S Diapers in Japan | Price per diaper
Where Can You Find the Lowest Price Right Now?
The current lowest effective price is ¥17.8 per diaper as of September 24, 2026. Including campaigns and reward points, "MamyPoko Doraemon Design Pull-Up Diapers – Size S" sold by 楽天24 ベビー館 is currently the cheapest option.
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#1 ¥17.8/diaper MamyPoko Doraemon Design Pull-Up Diapers – Size S 【販売店：楽天24 ベビー館】
1
MamyPoko Doraemon Design Pull-Up Diapers – Size S
4~9kg ★4.8 (58)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥24.5¥17.8
156 diapers ¥3,927¥3,327Free 107pt544ptYou can save about ¥6.7 per diaper with the following offers applied!
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楽天24 ベビー館
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#2 ¥19.6/diaper MamyPoko Doraemon Design Pull-Up Diapers – Size S 【販売店：楽天24】
2
MamyPoko Doraemon Design Pull-Up Diapers – Size S
4~9kg ★0.0 (5861)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥24.5¥19.6
156 diapers ¥3,927¥3,327Free 107pt272ptYou can save about ¥4.9 per diaper with the following offers applied!
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楽天24
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#3 ¥19.7/diaper Merries Air-Through Dry Skin Pull-Up Diapers – Size S 【販売店：楽天24 ベビー館】
3
Merries Air-Through Dry Skin Pull-Up Diapers – Size S
4~8kg ★4.8 (4054)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥28.3¥19.7
222 diapers ¥6,460¥5,860Free 176pt1,491ptYou can save about ¥8.6 per diaper with the following offers applied!
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楽天24 ベビー館
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#4 ¥22.2/diaper Merries First Premium Pull-Up Diapers – Size S 【販売店：楽天24 ベビー館】
4
Merries First Premium Pull-Up Diapers – Size S
4~8kg ★4.7 (126)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥32.7¥22.2
156 diapers ¥5,239¥4,639Free 142pt1,180ptYou can save about ¥10.5 per diaper with the following offers applied!
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楽天24 ベビー館
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#5 ¥22.2/diaper Merries Air-Through Dry Skin Pull-Up Diapers – Size S 【販売店：楽天24 ベビー館】
5
Merries Air-Through Dry Skin Pull-Up Diapers – Size S
4~8kg ★4.7 (4329)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥28.9¥22.2
186 diapers ¥5,530¥4,930Free 150pt806ptYou can save about ¥6.7 per diaper with the following offers applied!
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楽天24 ベビー館
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#6 ¥22.5/diaper Merries Air-Through Dry Skin Pull-Up Diapers – Size S 【販売店：マツモトキヨシ楽天市場店】
6
Merries Air-Through Dry Skin Pull-Up Diapers – Size S
4~8kg ★4.3 (7)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥23.8¥22.5
186 diapers ¥4,554 Free 124pt372ptYou can save about ¥1.3 per diaper with the following offers applied!
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マツモトキヨシ楽天市場店
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#7 ¥23.7/diaper moony Marshmallow Soft Touch Pull-Up Diapers – Size S 【販売店：楽天24 ベビー館】
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moony Marshmallow Soft Touch Pull-Up Diapers – Size S
★4.8 (380)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥31.2¥23.7
162 diapers ¥5,190¥4,590Free 141pt751ptYou can save about ¥7.5 per diaper with the following offers applied!
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楽天24 ベビー館
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#8 ¥24.7/diaper Pampers Dry Care Pull-Up Diapers – Size S 【販売店：ひかりTVショッピング 楽天市場店】
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Pampers Dry Care Pull-Up Diapers – Size S
4~8kg ★4.9 (22)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥26.2¥24.7
222 diapers ¥5,980 Free 163pt489ptYou can save about ¥1.5 per diaper with the following offers applied!
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ひかりTVショッピング 楽天市場店
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#9 ¥25.3/diaper Merries Air-Through Dry Skin Pull-Up Diapers – Size S 【販売店：暮らし健康ネット館】
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Merries Air-Through Dry Skin Pull-Up Diapers – Size S
4~8kg ★0.0 (22)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥26.8¥25.3
372 diapers ¥10,263 Free 279pt839ptYou can save about ¥1.5 per diaper with the following offers applied!
Your Benefits
Change Benefit Settings 》- Auto Applied Rakuten Card Holder +2%pt
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暮らし健康ネット館
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#10 ¥25.3/diaper Merries Air-Through Dry Skin Pull-Up Diapers – Size S 【販売店：便利生活 マイルーム】
10
Merries Air-Through Dry Skin Pull-Up Diapers – Size S
4~8kg ★4.2 (9)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥26.8¥25.3
372 diapers ¥10,263 Free 279pt839ptYou can save about ¥1.5 per diaper with the following offers applied!
Your Benefits
Change Benefit Settings 》- Auto Applied Rakuten Card Holder +2%pt
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便利生活 マイルーム
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#11 ¥25.3/diaper Merries Air-Through Dry Skin Pull-Up Diapers – Size S 【販売店：快適ホーム】
11
Merries Air-Through Dry Skin Pull-Up Diapers – Size S
4~8kg ★4.2 (1549)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥26.8¥25.3
372 diapers ¥10,263 Free 279pt839ptYou can save about ¥1.5 per diaper with the following offers applied!
Your Benefits
Change Benefit Settings 》- Auto Applied Rakuten Card Holder +2%pt
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快適ホーム
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#12 ¥25.3/diaper Merries Air-Through Dry Skin Pull-Up Diapers – Size S 【販売店：こどもラボ】
12
Merries Air-Through Dry Skin Pull-Up Diapers – Size S
4~8kg ★4.7 (361)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥26.8¥25.3
372 diapers ¥10,263 Free 279pt839ptYou can save about ¥1.5 per diaper with the following offers applied!
Your Benefits
Change Benefit Settings 》- Auto Applied Rakuten Card Holder +2%pt
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rakuten
こどもラボ
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#13 ¥25.3/diaper Merries Air-Through Dry Skin Pull-Up Diapers – Size S 【販売店：子育ての店 ベビー・キッズ】
13
Merries Air-Through Dry Skin Pull-Up Diapers – Size S
4~8kg ★4.7 (510)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥26.8¥25.3
372 diapers ¥10,263 Free 279pt839ptYou can save about ¥1.5 per diaper with the following offers applied!
Your Benefits
Change Benefit Settings 》- Auto Applied Rakuten Card Holder +2%pt
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rakuten
子育ての店 ベビー・キッズ
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#14 ¥25.9/diaper moony Gap-Free Leak Protection Pull-Up Diapers – Size S 【販売店：楽天24】
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moony Gap-Free Leak Protection Pull-Up Diapers – Size S
4~8kg ★4.7 (17)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥31.0¥25.9
162 diapers ¥5,161¥4,561Free 140pt373ptYou can save about ¥5.1 per diaper with the following offers applied!
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Change Benefit Settings 》- Auto Applied Rakuten Card Holder +2%pt
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楽天24
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#15 ¥26.5/diaper MamyPoko Doraemon Design Pull-Up Diapers – Size S 【販売店：Amazon販売店】
15
MamyPoko Doraemon Design Pull-Up Diapers – Size S
4~9kg ★4.5 (2)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥26.9¥26.5
156 diapers ¥4,233 Free 42pt106ptYou can save about ¥0.4 per diaper with the following offers applied!
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amazon
Amazon販売店
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#16 ¥26.6/diaper moony Natural Pull-Up Diapers – Size S 【販売店：楽天24 ベビー館】
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moony Natural Pull-Up Diapers – Size S
4~8kg ★4.8 (515)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥34.8¥26.6
150 diapers ¥5,369¥4,769Free 146pt780ptYou can save about ¥8.2 per diaper with the following offers applied!
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楽天24 ベビー館
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#17 ¥26.8/diaper Merries First Premium Pull-Up Diapers – Size S 【販売店：マツモトキヨシ楽天市場店】
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Merries First Premium Pull-Up Diapers – Size S
4~8kg ★5.0 (38)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥28.4¥26.8
156 diapers ¥4,554 Free 124pt372ptYou can save about ¥1.6 per diaper with the following offers applied!
Your Benefits
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rakuten
マツモトキヨシ楽天市場店
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#18 ¥27.1/diaper Merries Air-Through Dry Skin Pull-Up Diapers – Size S 【販売店：楽天24】
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Merries Air-Through Dry Skin Pull-Up Diapers – Size S
4~8kg ★4.5 (15)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥31.8¥27.1
186 diapers ¥6,084¥5,484Free 165pt448ptYou can save about ¥4.7 per diaper with the following offers applied!
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楽天24
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#19 ¥27.7/diaper MamyPoko Doraemon Design Pull-Up Diapers – Size S 【販売店：KIMURAYA NET TASTE】
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MamyPoko Doraemon Design Pull-Up Diapers – Size S
4~9kg ★5.0 (1)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥29.4¥27.7
156 diapers ¥4,712 Free 128pt385ptYou can save about ¥1.7 per diaper with the following offers applied!
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KIMURAYA NET TASTE
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#20 ¥27.7/diaper MamyPoko Doraemon Design Pull-Up Diapers – Size S 【販売店：キムラヤ楽天市場店】
20
MamyPoko Doraemon Design Pull-Up Diapers – Size S
4~9kg ★0.0 (1)Effective Price/diaper Quantity Price incl. Tax Shipping Estimated Points ¥29.4¥27.7
156 diapers ¥4,712 Free 128pt385ptYou can save about ¥1.7 per diaper with the following offers applied!
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キムラヤ楽天市場店
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The lowest price is calculated based on the price per diaper, including shipping and reward points. Prices and conditions may vary depending on your personal settings and the latest information, so please check the retailer’s website for the most accurate details.
「適用する」は詳細ページにてクーポン取得やエントリーすると誰でもお得になるため、忘れずに申請してね（販売サイトで自動適用されないので見逃し多数💦）
Features and How to Choose Pull-Up – S Diapers
A pull-up diaper size generally recommended for babies weighing 4 to 8kg, often introduced from around 4 months old when babies begin sitting with support. This is commonly the first size used when switching from tape diapers to pull-up diapers. Pull-up diapers are easy to change whether the baby is lying down or standing, and a snug leg fit helps prevent leaks as babies move more. Once crawling becomes active, pull-up diapers are often easier to use and stay in place better.
