This article uses affiliate programs, including the Amazon Associates Program, to introduce products. As an Amazon Associate, CHOTTO NOTE earns from qualifying purchases.

This article uses affiliate programs, including moshimo, Rakuten Affiliate, and A8.net, to introduce products.

About this articleThese are products that ranked high on Kakaku.com's popularity ranking and that have a page for the same model on both Amazon and Rakuten Ichiba. We did not compare specs or give scores.

When's the Prime Appreciation Sale? Check the Dates

Amazon's Prime Appreciation Sale is a large sale for Prime members. The dates come from Amazon's official announcement (updated 2026-09-24).

Early sale
Tue, Oct 13, 2026, 0:00 to Thu, Oct 15, 23:59 (JST)
Main sale
Fri, Oct 16, 2026, 0:00 to Mon, Oct 19, 23:59 (JST)

Prime Appreciation Sale page on Amazon (ended)

See Amazon's announcement (in Japanese)

The main sale has ended (it ran from Fri, Oct 16, 2026, 0:00 to Mon, Oct 19, 23:59 JST). Prices and discount rates are taken from each product's Amazon.co.jp page. Prices change from day to day, and also during and around the sale, so please check the current price on each product's Amazon page before buying.

Check Amazon's official page

Amazon

How the Sale Works, and Tips to Use It Well

The Prime Appreciation Sale included a "points bonus campaign." After signing up during the entry period (Sept 24, 14:00 JST to Oct 19, 23:59 JST) on Amazon's official site, spending 10,000 yen (tax included) or more during the purchase period (Oct 13, 0:00 JST to Oct 19, 23:59 JST) earned bonus points, up to 10,000 time-limited points depending on how much you spend. Some products, including Apple products, are excluded. Check Amazon's official page for the full conditions.

During the main sale (Oct 16-19), there was a "daily featured deal" (厳選日替わりセール) where the discounted products changed each day. Amazon's official page notes that the comparison price is based on the same product's Amazon.co.jp price since January 1, 2026, not a promise about future prices. For anything you're considering, it's worth checking the product page itself before buying to see whether the deal is actually worth it.

If you're not a Prime member yet, a 30-day free trial lets you try Prime perks too.

Not a Prime member yet?

A 30-day free trial gives you Prime perks such as fast shipping and member-only deals. The trial automatically switches to a paid plan when it ends, so cancel during the trial if you don't want to continue.

Try Amazon Prime free Opens the shop's site
Amazon

Popular Cordless Vacuums

Cordless vacuums are easy to grab and use, so weight and run time often decide the choice. Here are models ranking high on Kakaku.com's popularity ranking.

Rank #1Hitachi Rakukaru Stick PV-BL1C4 (W) White
Image: Rakuten Ichiba product photo

Hitachi Rakukaru Stick PV-BL1C4 (W) White

日立 PV-BL1C4(W)

HighlightsIt weighs 1.1 kg as a stick and 0.8 kg as a handheld, and has a self-propelled compact head that helps it glide forward.

Key specs

Weight (stick)
1.1 kg (0.8 kg as handheld)
Run time
Standard: approx. 30 min (approx. 45 min without the power head)
Dust capacity
0.15 L (cyclone)

Good forPeople who want a light, easy-to-handle model that works as both a stick and a handheld.

Things to note

With a 0.15 L dust capacity, the bin needs emptying fairly often.

Sources: 価格.com スペック / 価格.com 人気売れ筋ランキング(コードレス掃除機) / 楽天 商品ページ(PCあきんど)

Bought 300+ times in the past month
¥27,670tax incl.
See on Amazon¥27,670Price as of 2026-10-19 · affiliate link · Opens the shop's site
Rank #5Dyson V12 Detect Slim Fluffy cordless vacuum SV46 FF
Image: Amazon product photo

Dyson V12 Detect Slim Fluffy cordless vacuum SV46 FF

Dyson SV46 FF

HighlightsA Dyson cordless vacuum with a laser that reveals dust on hard floors, plus a sensor that automatically adjusts suction.

Key specs

Weight
approx. 2.2 kg
Run time
Up to 60 min (with accessory tools in eco mode) / approx. 30 min in standard mode
Dust capacity
0.35 L

Good forPeople with mostly hard floors who want to catch fine dust that's easy to miss.

Things to note

At about 2.2 kg, it's heavier than the lightweight Hitachi and Panasonic models above (about 1.1-1.3 kg). The product page also points to a newer, similarly-specced successor sold separately.

Sources: 価格.com 人気売れ筋ランキング(コードレス掃除機、集計2026/10/14時点)5位 / Amazon.co.jp 商品ページ(仕様・画像) / 楽天 Outlet Plaza 出品ページ

Bought 100+ times in the past month
¥48,312tax incl.
See on Amazon¥48,312Price as of 2026-10-19 · affiliate link · Opens the shop's site

See the comparison article for this category (Spec Score) That article compares other models by turning their specs into scores.

Popular Humidifiers

As the air dries out heading into autumn and winter, more people start looking for a humidifier. These are models near the top of Kakaku.com's popularity ranking.

Kakaku.com popularity ranking (humidifiers). Zojirushi dominated the ranking (8 of the top 10 as of 2026/10/06-10/12). We originally added a Dainichi model (ranked #6) for variety, but its Amazon page turned out to be a hometown-tax (furusato nozei) donation listing rather than a normal purchase page (no price or discount shown, and delivery is tied to a donation), so on 2026-10-14 we swapped it for a model that is actually on sale.

Zojirushi EE-TC60 steam humidifier (White / Soft Black)
Image: Rakuten Ichiba product photo

Zojirushi EE-TC60 steam humidifier (White / Soft Black)

象印 EE-TC60

Ranking White (WA) is #2, Soft Black (BM) is #3

Highlights600 mL/h output with a 4 L tank; continuous run is about 6 hours on high and about 20 hours on low.

Key specs

Max output
600 mL/h
Tank
4 L
Room size
10 tatami (wood) / 17 tatami (prefab)

Good forPeople who want strong humidifying in a larger room such as a living room.

Things to note

Power consumption is 985 W and it weighs 2.8 kg.

Sources: 価格.com スペック / 楽天 商品ページ(crown-musen:10024671) / 楽天 商品ページ(crown-musen:10024670)

White

Bought 100+ times in the past month
¥26,532tax incl.

Soft Black

¥26,500tax incl.
See on Amazon¥26,500Price as of 2026-10-14 · affiliate link · Opens the shop's site
Rank #6Zojirushi EE-DG50-HA steam humidifier (Gray)
Image: Amazon product photo

Zojirushi EE-DG50-HA steam humidifier (Gray)

象印 EE-DG50-HA

HighlightsA filter-free steam humidifier from Zojirushi, a maker known for easy-to-clean designs; sized for rooms up to about 8 tatami (wood) or 13 (prefab).

Key specs

Tank
4.0 L
Room size
Up to 8 tatami (wood) / up to 13 tatami (prefab)
Dimensions
24 W x 27.5 D x 36.5 H cm

Good forPeople who want to humidify a room of around 8 tatami, such as a bedroom or a single room.

Things to note

As a steam type, it humidifies with boiled water; the area near the outlet gets hot, so place it carefully in a home with small children or pets.

Sources: 価格.com 加湿器 人気売れ筋ランキング(集計2026/10/06〜10/12) 6位 / ツクモ 商品ページ(タンク容量・適用畳数) / Amazon.co.jp 商品ページ / 楽天 クラウン無線 楽天市場店 出品ページ

Bought 50+ times in the past month
¥22,584tax incl.
See on Amazon¥22,584Price as of 2026-10-19 · affiliate link · Opens the shop's site

See the comparison article for this category (Spec Score) That article compares other models by turning their specs into scores.

Popular Air purifiers

As dry air and pollen start to matter in autumn and winter, air purifiers are a category worth narrowing down in advance. These are models currently on the Kakaku.com popularity ranking, shown with their positions.

Rank #4Daikin Humidifying Streamer Air Purifier MCK556A-W (White)
Image: Amazon product photo

Daikin Humidifying Streamer Air Purifier MCK556A-W (White)

ダイキン MCK556A-W

HighlightsCombines streamer and active plasma ion technology against pollen, viruses, odor and dust; the maker says air-cleaning power holds up even while humidifying.

Key specs

Coverage (air purifying, old standard)
Up to 25 tatami
Coverage (humidifying)
Up to 14 tatami
Filter
TAFU filter, no replacement for 10 years

Good forPeople who want humidifying and air purifying in one slim tower, suited to a bedroom

Things to note

The coverage figure uses the older JEM1467 standard.

Sources: 価格.com 人気売れ筋ランキング(集計2026/10/01〜10/07) 4位 / Amazon.co.jp 商品ページ(仕様・画像) / 楽天 デンキチWeb 楽天市場店 出品ページ(API取得の商品名・説明)

Bought 100+ times in the past month
¥44,980tax incl.
See on Amazon¥44,980Price as of 2026-10-19 · affiliate link · Opens the shop's site
Rank #5Airdog X5D Air Purifier
Image: Rakuten Ichiba product photo

Airdog X5D Air Purifier

Airdog X5D

HighlightsAn electrostatic (TPA) purifier with a CO2 sensor, casters and anti-roll stoppers.

Key specs

Noise
51 dB (as listed on Kakaku.com)
Clean air supply (maker figure)
65 m2 worth in 30 minutes
Body
306 W x 650 H x 316 D mm, 11.1 kg, on casters

Good forPeople who want a larger-room model that can be wheeled between rooms

Things to note

The CO2 sensor only reports concentration (the listing says it does not reduce CO2); the unit weighs 11.1 kg.

Sources: 価格.com 人気売れ筋ランキング(集計2026/10/01〜10/07) 5位 / 価格.com スペック(ホワイト) / 楽天 デジタルラボ 楽天市場店 出品ページ(API取得の商品名・説明)

Bought 100+ times in the past month
¥155,430tax incl.
See on Amazon¥155,430Price as of 2026-10-14 · affiliate link · Opens the shop's site

See the comparison article for this category (Spec Score) That article compares other models by turning their specs into scores.

Popular Robot vacuums

With more models that handle vacuuming, mopping, dust collection and even mop washing, robot vacuums draw attention whenever big sales come around. These are models on the Kakaku.com popularity ranking, shown with their positions.

Rank #2Anker Eufy Robot Vacuum Omni C28 (T211A510, Black)
Image: Rakuten Ichiba product photo

Anker Eufy Robot Vacuum Omni C28 (T211A510, Black)

Anker Eufy Omni C28(T211A510)

HighlightsA robot vacuum with a dust station that also washes and dries the mop automatically.

Key specs

Type
Vacuum + mop, with automatic mop washing and drying
Runtime / dust box
Up to 250 min, 0.22 L; two side brushes
Body
Robot unit 5.1 kg

Good forPeople who want the mop washed automatically as well

Sources: 価格.com 人気売れ筋ランキング(集計2026/10/01〜10/07) 2位 / 価格.com スペック / 楽天 アサヒデンキ 出品ページ(商品説明に価格.com同様のスペック表)

Bought 100+ times in the past month
¥59,990tax incl.
See on Amazon¥59,990Price as of 2026-10-14 · affiliate link · Opens the shop's site
Rank #1ECOVACS DEEBOT N30 PLUS (Black)
Image: Amazon product photo

ECOVACS DEEBOT N30 PLUS (Black)

ECOVACS DEEBOT N30 PLUS

HighlightsA vacuum-and-mop robot with the ZeroTangle 2.0 anti-tangle brush and an automatic dust-collection station.

Key specs

Type
Vacuum + mop (PureCyclone bagless design)
Suction / battery
10,000 Pa / 5,200 mAh
Tanks
300 mL water tank, 350 mL dust bin

Good forHouseholds with pet or human hair that tends to tangle, wanting both vacuuming and mopping in one robot

Things to note

It does not auto-wash or auto-dry the mop (vacuum + mop only, no mop-cleaning station).

Sources: 価格.com 人気売れ筋ランキング(集計2026/10/07〜10/13) 1位 / ECOVACS公式サイト 商品ページ(仕様) / Amazon.co.jp 商品ページ(画像)

¥29,800tax incl.
See on Amazon¥29,800Price as of 2026-10-14 · affiliate link · Opens the shop's site

See the comparison article for this category (Spec Score) That article compares other models by turning their specs into scores.

Popular Kitchen

A coffee maker and a rice cooker, both recent, well-regarded models.

De'Longhi Magnifica S ECAM22112B fully automatic coffee machine (Black)
Image: Amazon product photo

De'Longhi Magnifica S ECAM22112B fully automatic coffee machine (Black)

デロンギ ECAM22112B

HighlightsA fully automatic espresso machine that grinds beans and brews with one touch. It has held the #1 bestseller spot in Amazon's coffee maker category.

Key specs

Water tank
1.8 L
Size / weight
W238 × D430 × H350 mm / approx. 9.5 kg
Milk menu
Manual milk frothing (2 menus total)

Good forPeople who want proper bean-to-cup espresso and cappuccino at the touch of a button.

Things to note

At about 9.5 kg, it's fairly heavy. Milk frothing is manual, not automatic.

Sources: De'Longhi公式サイト(ECAM22112B) / Amazon.co.jp 商品ページ(仕様・画像) / 楽天 デロンギ公式 楽天市場店 出品ページ

Bought 500+ times in the past month
¥58,800tax incl.
See on Amazon¥58,800Price as of 2026-10-14 · affiliate link · Opens the shop's site
Zojirushi NW-YD10-WA pressure IH rice cooker (White)
Image: Rakuten Ichiba product photo

Zojirushi NW-YD10-WA pressure IH rice cooker (White)

象印 NW-YD10

HighlightsA July 2026 model built around Zojirushi's high-output 'Gonetsu Daikariki' heating and a choice of three pressure-cooking settings.

Key specs

Capacity
5.5 go
Size / weight
W250 × D205 × H365 mm / approx. 5.0 kg
Max power / keep-warm
1240 W / up to 30 hours

Good forPeople who care about how the rice comes out, in households that fit within a 5.5-go cooker.

Things to note

Max power draw is 1240 W and it weighs about 5.0 kg. Sold in White (-WA) and Black (-BA).

Sources: 価格.com スペック / 価格.com 商品ページ

Bought 50+ times in the past month
¥33,220tax incl.
See on Amazon¥33,220Price as of 2026-10-19 · affiliate link · Opens the shop's site

Popular Gadgets

A pair of true wireless earbuds and a slim power bank, both recent, popular models.

Sony WF-1000XM5 true wireless earbuds (Black)
Image: Amazon product photo

Sony WF-1000XM5 true wireless earbuds (Black)

ソニー WF-1000XM5

HighlightsA VGP2025 Gold Award-winning Sony true wireless earbud: compact, lightweight, with strong noise cancelling.

Key specs

Playback
Approx. 8 h (NC on) / 12 h (NC off), earbuds only
Weight
Approx. 5.9 g per earbud
Water resistance
IPX4

Good forPeople who want strong sound quality and noise cancelling for commuting and travel.

Things to note

Water resistance tops out at IPX4 (splash-resistant, not swim-proof). A successor (WF-1000XM6) has already launched.

Sources: ソニー公式サイト(WF-1000XM5 仕様) / Amazon.co.jp 商品ページ / 楽天 エキサイトネット 本店 出品ページ

Bought 2000+ times in the past month
¥24,000tax incl.
See on Amazon¥24,000Price as of 2026-10-14 · affiliate link · Opens the shop's site
Anker Nano Power Bank (5000mAh, MagGo, Slim), Black
Image: Rakuten Ichiba product photo

Anker Nano Power Bank (5000mAh, MagGo, Slim), Black

Anker A1665

HighlightsA slim (about 8.6 mm) power bank with Qi2 magnetic wireless charging (MagSafe-compatible), built for portability.

Key specs

Capacity / output
5000 mAh / up to 20 W USB-C, up to 15 W wireless (Qi2), 17 W combined max
Size / weight
Approx. 102 × 71 × 8.6 mm / approx. 122 g

Good foriPhone users who want a thin power bank that doesn't add bulk in a pocket or bag.

Things to note

5000 mAh is roughly one smartphone charge. Output drops to a combined 17 W if you use wireless and cable charging at the same time.

Sources: Anker公式サイト(A1665)

Bought 1000+ times in the past month
¥5,590tax incl.
See on Amazon¥5,590Price as of 2026-10-14 · affiliate link · Opens the shop's site

Popular Desk gear

A trackball mouse that eases wrist strain, and a webcam for video calls — both long-running Logitech staples.

Logicool ERGO M575SP wireless trackball mouse (Black)
Image: Rakuten Ichiba product photo

Logicool ERGO M575SP wireless trackball mouse (Black)

ロジクール ERGO M575SP

HighlightsA thumb-operated trackball that moves the cursor without moving the mouse body itself; click noise is cut by about 80% versus the earlier plain 'ERGO M575'.

Key specs

Connection
Bluetooth Low Energy or the Logi Bolt receiver
Sensor / battery
Optical, up to 2,000 dpi / 1x AAA battery (up to 18 months)
Size / weight
100 × 48 × 134 mm / approx. 145 g

Good forPeople bothered by wrist or forearm strain, or who don't have room to swing a regular mouse around.

Things to note

It can take a little time to get used to trackball operation, and it isn't suited to fast, sweeping cursor movements.

Sources: ロジクール公式サイト(ERGO M575SP) / ロジクール公式プレスリリース

Bought 5000+ times in the past month
¥4,980tax incl.
See on Amazon¥4,980Price as of 2026-10-14 · affiliate link · Opens the shop's site
Logicool C920n HD Pro Webcam
Image: Rakuten Ichiba product photo

Logicool C920n HD Pro Webcam

ロジクール C920n

HighlightsA long-running staple webcam with RightLight 2 automatic light correction, autofocus, and stereo mics — still sold years after launch.

Key specs

Resolution
Full HD 1080p at 30 fps, or 720p at 30 fps
Field of view / lens
Fixed 78° diagonal / 5-element glass lens with autofocus
Microphone
Dual microphones for stereo audio

Good forPeople who want a modest step up in video/audio quality for online meetings or classes.

Things to note

The 78° diagonal field of view is fixed and cannot be switched to wide-angle or telephoto.

Sources: ロジクール公式サイト(C920n)

Bought 2000+ times in the past month
¥4,880tax incl.
See on Amazon¥4,880Price as of 2026-10-14 · affiliate link · Opens the shop's site

Popular Bedding

A pillow with fine-grained height adjustment, and a tri-fold mattress topper that packs away when not in use.

Taiyo 'Hitsuji no Iranai Makura -Chouritsu-' height-adjustable pillow, HTC-001 (Black)
Image: Rakuten Ichiba product photo

Taiyo 'Hitsuji no Iranai Makura -Chouritsu-' height-adjustable pillow, HTC-001 (Black)

太陽(Taiyo) HTC-001

HighlightsIts defining feature is 14-step height adjustment, achieved by stacking different-thickness fiber sheets inside.

Key specs

Height adjustment
14 steps, by combining 1/2/3 cm fiber sheets
Material
TPE body with activated charcoal; cover 70% polyester / 30% Tencel
Weight
Approx. 2.4 kg

Good forPeople who want to change their pillow's height depending on how they feel that day.

Things to note

The maker's official price is ¥19,800, higher than a typical pillow at a general retailer.

Sources: ヒツジのいらない枕 公式サイト(調律)

Bought 800+ times in the past month
¥16,630tax incl.
See on Amazon¥16,630Price as of 2026-10-14 · affiliate link · Opens the shop's site
True Sleeper Premier Rich tri-fold mattress topper, Single
Image: Amazon product photo

True Sleeper Premier Rich tri-fold mattress topper, Single

Shop Japan(オークローンマーケティング) TRPR3

HighlightsFolds into thirds for storage, making it easy to keep on hand for guests or in a small space.

Key specs

Size / thickness
900 × 1950 mm (Single) / 70 mm (all sizes)
Construction
3-layer urethane (low- and high-resilience top layers), body made in Japan
Weight
Approx. 5.2 kg (Single)

Good forPeople who want a mattress topper they can fold away compactly when not in use.

Things to note

A futon dryer cannot be used on it. A futon vacuum can be used over the cover, but the maker warns against running it directly on the surface.

Sources: Shop Japan公式サイト(トゥルースリーパー プレミアリッチ)

Bought 50+ times in the past month
¥30,623tax incl.
See on Amazon¥30,623Price as of 2026-10-14 · affiliate link · Opens the shop's site

Popular Beauty appliances

A brush-style facial device and a straightening iron with a digital temperature readout.

Brighte ELEKI BRUSH+ brush-style facial device, BRT-FSB180
Image: Rakuten Ichiba product photo

Brighte ELEKI BRUSH+ brush-style facial device, BRT-FSB180

Brighte BRT-FSB180

HighlightsCombines EMS, RF, and LED in one brush head with no attachments to swap, and is fully waterproof (IPX6) for bath use.

Key specs

Functions
38-electrode EMS, auto-adjusting RF, 16 red/blue LEDs — all in one brush
Water resistance / weight
Fully waterproof (IPX6, bath-safe) / approx. 170 g
Charging
About 3 hours via USB-C

Good forPeople who'd rather manage one multi-function device than several single-purpose ones.

Things to note

Of the benefits listed on the official page, only the 'reduces dryness-related fine lines' claim carries an efficacy-test footnote. The official page excludes pacemaker users, those with heart conditions, diabetes, or high blood pressure, early pregnancy, and people with skin allergies.

Sources: Brighte公式サイト(BRT-FSB180)

Bought 100+ times in the past month
¥29,800tax incl.
See on Amazon¥29,800Price as of 2026-10-19 · affiliate link · Opens the shop's site
Rank #2Panasonic Nanocare Straightening Iron EH-HS0J-W (White)
Image: Amazon product photo

Panasonic Nanocare Straightening Iron EH-HS0J-W (White)

パナソニック EH-HS0J-W

HighlightsFeatures 5-step temperature control and a plate designed for a quick, smooth straightening pass; it also shuts off automatically about 60 minutes after use.

Key specs

Temperature control
5 steps (max setting approx. 200°C)
Heat-up / auto-off
Approx. 20 sec. to reach approx. 100°C / auto-off about 60 min. after use
Power
AC100-120V / 220-240V (dual voltage, usable overseas)

Good forPeople who want a dual-voltage, nano-care-equipped straightening iron that also works overseas.

Things to note

It's a corded model. Body weight is about 380 g per retailer listings.

Sources: 価格.com ヘアアイロン 注目ランキング 2位(2026-10-14確認) / Panasonic公式サイト(仕様) / Amazon.co.jp 商品ページ / 楽天 雅ビューティーストア 出品ページ

Bought 500+ times in the past month
¥14,150tax incl.

⚠ As of 2026-10-19: the displayed price differed between the environments we checked (¥13,850–¥14,850). The price above is as of 2026-10-14. Please check the price on Amazon before buying.

See on Amazon¥14,150Price as of 2026-10-14 · affiliate link · Opens the shop's site

Checks Before You Buy in a Sale

Basic checks that apply to any product you buy in a sale.

  1. Check that the model number matches. Compare the model number on the product page with the one in this article. Colors, sizes and older models often sit side by side.
  2. Compare the price on both Amazon and Rakuten Ichiba. Along with the listed price, look at shipping and points, which also change what you actually pay.
  3. Read the shipping and warranty terms. Check the delivery estimate, the manufacturer and seller warranty, and the return terms on the product page.
  4. See who is selling it. On Amazon check the seller and shipper; on Rakuten Ichiba check the shop name.
  5. Check the size and the room it is meant for. Use the product page figures to decide whether it fits your space.

How We Chose These Products, and Sources

Ranking basis
We chose from products ranking high on Kakaku.com's popularity ranking (counted 2026/10/01 to 10/07, retrieved 2026-10-14). A rank is shown only for products that have one.
Amazon and Rakuten check
For each product we looked at the product pages on Amazon and Rakuten Ichiba and listed it only if the model number matches. Products we could confirm on only one of the two are not listed.
Sources of specs and photos
Key specs come from the pages listed under each product's sources (Kakaku.com spec pages, Rakuten Ichiba product pages and so on). Photos are product images from Rakuten Ichiba.
Prices
Prices, reference prices and discount rates are taken from each product's Amazon.co.jp page (with the delivery address set to Japan). Prices change often, so please check the current price on each product's Amazon page.
Advertising
This article uses affiliate programs, including the Amazon Associates Program, to introduce products. The site may earn a referral fee when you buy through a link. See About this site for details.

Related Articles

Update history

Show update history (2)
  • Published. Based on Kakaku.com's popularity ranking (counted 2026/10/01 to 10/07).
  • Added price, reference price, discount rate and "bought in the past month" figures from each product's Amazon.co.jp page (fetched with the delivery address set to Japan). Two products that were not currently discounted on Amazon (in the air-purifier and beauty-appliance categories) were swapped for a different-ranked model from the same Kakaku.com ranking.