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Philips HX3651 Ad#Electric Toothbrush · Worldwide voltage★3.9JP¥4,750 Philips HX3651 Worldwide
The math
Japan price incl. taxJP¥4,750
Tax-free price (paid in store)JP¥4,318
In USD≈ US$28
⚠️ Needs JP¥5,000 (excl. tax) at one store on one day
 Japan consumption tax 10% (food 8%)
Power & flights
VoltageTBD
PlugTBD
FrequencyTBD
FlightsOK on the plane
 Country-by-country results below
Kakaku.com rating ★ 3.9
Pros: Light, with a single button that is easy to use
Pros: Inexpensive
Cons: Battery rated below the class average
Cons: Some users report repeated beeping after it is fully charged
 Pros and cons summarized by us from public reviews

← Swipe for more → · Image from Rakuten Ichiba「SmileMix」; tap the image to view the item Ad · affiliate link

Philips Sonicare 2100 Series HX3651

フィリップス ソニッケアー 2100シリーズ HX3651 · Worldwide voltage

Price JP¥4,750 · tax-free JP¥4,318
Voltage TBD
Source Kakaku.com · 10-24
Electric Toothbrush

As of 2026-10-24, the lowest online price on Kakaku.com is JP¥4,750 (incl. tax); of the 21 destinations we check, it works as is in all 21.

Philips entry model with a USB (DC 5V) charging stand; no charger included. About 97g; a full charge lasts about 2 weeks (2 minutes twice a day).

BestJapanBuyData updated 2026-10-24 · sources at the end

Lowest online price (incl. tax) JP¥4,750 (shipping not included). At a tax-free shop you pay the tax-free price JP¥4,318 at the register (≈ US$28).Below the threshold on its own: you need JP¥5,000 (excl. tax) at one store on one day to buy tax-free. How the new tax-free refund works ›

TBD, Type TBD plug, TBDHz. Will it work in your country? →

Flights: OK on the plane. Built-in lithium battery (≤100Wh): OK in carry-on; better not to check it, and power it off if checked

Kakaku.com rating ★ 3.9/5 (20 reviews), not our own rating.

Pros: Light, with a single button that is easy to use; Inexpensive

Cons: Battery rated below the class average; Some users report repeated beeping after it is fully charged

Good for: TBD

Sold at major electronics stores in Japan (Bic Camera, Yodobashi Camera and others); check stock before you go. Find the nearest store.

  • #JapanShopping
  • #JapanElectricToothbrush
  • #Philips
  • #USBCharging
  • #TaxFreeJapan

Edited 2026-10-24 · prices for reference only · names: Philips Sonicare 2100 Series HX3651 / フィリップス ソニッケアー 2100シリーズ HX3651

Japan price and tax refund

Price in Japan

Lowest online price
JP¥4,750
Tax-free price
JP¥4,318
In USD (reference)
≈ US$28

Japan price: Kakaku.com, 2026-10-24 (shipping not included)
Below JP¥5,000 (excl. tax) on its own: combine purchases at one store on one day to buy tax-free
USD rate JP¥1 = US$0.006377 (2026-10-23) · Prices are for reference only; check in store.

How tax-free shopping works

Until Oct 31, 2026: show your passport at a tax-free shop and pay the tax-free price at the register (at least JP¥5,000 excl. tax per store per day).

Calculate the refund · New tax-free rules explained

Specs

BrandPhilips / フィリップス
ModelHX3651
VersionWorldwide voltage
VoltageTBD
FrequencyTBD
PlugTBD
PowerTBD
BatteryLithium-ion
Released2022
Drive typeSonic vibration
ChargingUSB charging (charger not included)
Cleaning modes1modes
Battery runtimeTBD
Weight97g
Panel languageTBD

Spec sources: Kakaku.com specifications page, Rakuten Ichiba: OCC netshop (product page specifications)

Will it work in your country?

Based on each country's standard voltage, frequency and outlet types. Pick your country to put it at the top.

Country / regionResultWhat to know
Mainland China220V · 50Hz · Type A/I Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Hong Kong220V · 50Hz · Type G Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Macao220V · 50Hz · Type G/D Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Taiwan110V · 60Hz · Type A/B Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Singapore230V · 50Hz · Type G Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
South Korea220V · 60Hz · Type C/F Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
United States120V · 60Hz · Type A/B Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Thailand220V · 50Hz · Type A/B Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Malaysia240V · 50Hz · Type G Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Philippines220V · 60Hz · Type A/B Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Vietnam220V · 50Hz · Type A Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Indonesia230V · 50Hz · Type C/F Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
India230V · 50Hz · Type C/D/M Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Australia230V · 50Hz · Type I Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
New Zealand230V · 50Hz · Type I Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Canada120V · 60Hz · Type A/B Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
United Kingdom230V · 50Hz · Type G Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Germany230V · 50Hz · Type C/F Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
France230V · 50Hz · Type C/E Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Italy230V · 50Hz · Type C/F/L Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter
Spain230V · 50Hz · Type C/F Works as is USB-powered: charge it with any USB charger or computer at your destination; voltage doesn't matter

Flights (all destinations): OK on the plane: Built-in lithium battery (≤100Wh): OK in carry-on; better not to check it, and power it off if checked

This model: TBD. Results follow published standards; some buildings or hotels may differ.

Overseas vs Japan-only model

No counterpart model listed yet.

Reviews

Third-party rating: 3.9 / 5 (20 reviews)
Rating source: Kakaku.com, 2026-10-24
The rating comes from a third-party site and is not our own. Pros and cons are our summary of public reviews.

Pros

  • Light, with a single button that is easy to use
  • Inexpensive

Cons

  • Battery rated below the class average
  • Some users report repeated beeping after it is fully charged

Where to buy

In Japan

Sold at major electronics stores in Japan (Bic Camera, Yodobashi Camera and others); check stock before you go.

Find the nearest store

Japanese phrases to show staff · Checkout checklist · Calculate the price after refund

Frequently asked questions

Can I use the Philips HX3651 outside Japan?

Of the 21 destinations we check, it works as is in all 21. See the table "Will it work in your country?" on this page for each country and region.

How much is the Philips HX3651 in Japan tax-free?

As of 2026-10-24, the lowest online price on Kakaku.com is JP¥4,750 including tax. Tax-free or after the refund it is JP¥4,318. It costs less than JP¥5,000 (excl. tax) on its own, so you need to combine purchases at one store on one day to buy tax-free. From Nov 1, 2026, you pay the tax-included price in store and get the tax refunded when you leave Japan (a fee may apply).

Where can I buy the Philips HX3651 in Japan?

Sold at major electronics stores in Japan (Bic Camera, Yodobashi Camera and others); check stock before you go. The price we list is from Kakaku.com (2026-10-24); prices in store may differ.

Related Q&A

Sources

Updated 2026-10-24Prices are for reference only; check in store.MarkdownJSON