IQOS in Korea vs Japan: What Travelers Need to Know in 2026

🇯🇵🇰🇷 IQOS in Korea vs Japan: What Travelers Moving Between the Two Need to Know in 2026

Japan is IQOS's single largest market in the world. South Korea is one of its fastest-growing. But the two countries treat heated tobacco very differently — in what you can carry across the border, where you can buy it, how many flavors exist, and how much you pay. If you hop between Tokyo and Seoul often, the gaps matter.

This guide compares the 2026 rules, prices, and carrying allowances for IQOS and HEETS/TEREA/SENTIA sticks in both countries, based on the latest customs notices and April 2026 tobacco tax changes.

Short answer

1. The core difference: Japan is IQOS's home base, Korea is still rolling out

Japan has been PMI's IQOS launch market since 2014. Roughly 30% of Japanese adult smokers have switched to heated tobacco, and every convenience store — Lawson, FamilyMart, 7-Eleven — carries the full TEREA and SENTIA lineup, currently 26 TEREA variants (the widest in the world).

South Korea followed in 2017 but kept distribution tight. As of early 2026, PMI Korea operates only 9 directly-operated IQOS stores nationwide. The new IQOS ILUMA i One launched at ₩59,000 (~US$40) and is only expanding into convenience stores and online malls in Seoul beginning April 2026, with nationwide konbini availability from May 2026. The SENTIA pod lineup in Korea is limited to 4 flavors: Classic Gold, Classic Silver, Classic Purple, and Classic Green.

Practical impact: If you are used to buying TEREA Black Menthol, Russet, or Sienna in Tokyo, you cannot buy them in Seoul. Korea-sold SENTIA packs are a different product line.

2. Customs allowance for travelers — carrying IQOS across the border

Entering Japan (from customs.go.jp, adults 20+): - 200 cigarettes, OR - 50 cigars, OR - 10 individual packages of heat-not-burn tobacco (= 200 IQOS sticks / 200 glo sticks / 50 Ploom TECH capsules), OR - 250g of other loose tobacco

If you bring mixed types, the combined amount must not exceed the equivalent of 250g of loose tobacco.

Entering South Korea (Korea Customs Service): - 200 cigarette-equivalent sticks (HEETS/SENTIA sticks count toward this) - E-cigarette/vape liquid: 20 ml, nicotine concentration under 1% (10 mg/ml) - Alcohol: 1 bottle up to 1 L, under US$400 value - Perfume: 100 ml - Other personal goods: total value up to US$800

Minors under 19 (based on year of birth) get no tobacco or alcohol exemption in Korea.

3. Prices are rising in Japan — April 2026 tobacco tax hike

Japan raised tobacco taxes on April 1, 2026, with a second hike scheduled for October 2026, to help fund defense spending. Published price changes:

- IQOS TEREA: ¥580 → ¥620 per pack (+¥40) - IQOS SENTIA: ¥530 → ¥570 per pack (+¥40) - JT Ploom: most variants +¥20–30 per pack (37 variants affected)

Even after the hike, a TEREA pack in Japan (¥620, ~US$4.00) is still the cheapest IQOS option in Asia. Korea's equivalent packs sit closer to ₩4,500–5,000 (~US$3.20–3.60) before the rollout but with much thinner supply.

4. The device: ILUMA works differently in each country

IQOS ILUMA uses induction heating with a metal blade embedded in the stick — so TEREA and SENTIA sticks are not interchangeable with older HEETS sticks from the previous-generation IQOS 3 DUO.

- In Japan, both ILUMA (TEREA/SENTIA) and legacy IQOS 3 DUO (HEETS) remained sold in parallel, though PMI is phasing out HEETS globally. - In Korea, ILUMA is the main line; ILUMA i One launched in 2023, and the ILUMA i series landed in 2025.

If you bring a Japan-bought IQOS ILUMA device to Korea, it works — but you can only buy Korea-market SENTIA sticks to refill. Japan TEREA sticks are not retail-sold in Korea.

5. Battery / device rules for flying between NRT/HND ↔ ICN/GMP

IQOS devices contain lithium-ion batteries. Both Japan (MLIT) and South Korea (KCS/MOLIT) require: - Device must travel in carry-on, not checked baggage - Spare batteries, if any, in carry-on only - No in-flight use or charging

This applies on Japan Airlines, ANA, Korean Air, and Asiana — consistent with ICAO rules.

6. Penalties if you get it wrong

Japan: Excess tobacco above the duty-free allowance is taxed at the simple tariff rate (roughly ¥15/stick for cigarettes). Japan Customs is generally lenient if you declare proactively.

South Korea: Voluntarily declared excess gets a 30% duty reduction. But undeclared items caught at customs incur 40% additional tax on top of the standard duty — and 60% extra if you are caught twice within 2 years. Korea Customs does X-ray every piece of checked luggage arriving at Incheon.

7. Playbook for JP ↔ KR travelers

1. Going Tokyo → Seoul? Buy a 2-carton stash of TEREA in Japan before leaving. Keep under 200 sticks. Declare truthfully on the Korean customs form. 2. Going Seoul → Tokyo? Don't bother — Japanese konbini carry every TEREA flavor at lower prices post-hike. 3. Device new? Register it with PMI in the country of purchase for warranty. Japan-registered devices still get service in Japan but not in Korean IQOS stores. 4. Flying with batteries? Pack in carry-on. The device itself, extra Pocket Chargers, all in the cabin. 5. If you vape (non-IQOS): Korea's 20 ml liquid / <1% nicotine rule is strict. Many popular US/EU pods exceed the 1% cap and will be confiscated.

Related Pages on Can I Bring To

- Can I bring IQOS to Japan - Can I bring IQOS to South Korea - Can I bring vape to South Korea - Can I bring HEETS to Japan

FAQ

Q: Can I buy IQOS in Seoul Incheon duty-free? A: Yes — Shilla Duty Free and Lotte Duty Free both stock SENTIA and IQOS devices, though the flavor range is limited to the 4 Korea-approved SENTIA variants.

Q: Are Japan TEREA sticks legal to bring into Korea? A: Yes, as long as you stay under the 200-stick allowance and declare if over. Korea Customs treats them as heated tobacco, equivalent to cigarettes for allowance purposes.

Q: Can I use my Japan IQOS app with a Korean SIM? A: The IQOS companion app is region-locked. Device works, but app-based features (cleaning reminders, warranty) may need a re-login or a country switch.

Q: Why is IQOS so much more widespread in Japan? A: Japan's heated-tobacco market share passed 40% of total tobacco in 2024; Korea's is still below 20% as of 2026, and KT&G competes with its own "lil" heated product line — limiting PMI's retail footprint.

Q: What if I'm under 20 flying into Japan or under 19 into Korea? A: No duty-free tobacco allowance at all. Bringing any IQOS sticks as a minor risks confiscation and potential fines.

Bottom line

- Japan: more flavors, more shops, cheaper per pack, simpler carry rules - Korea: smaller lineup, fewer shops (expanding in 2026), stricter vape-liquid rule, harsher undeclared penalties - Both countries allow 200 sticks duty-free for adults — the carry allowance itself is the same number, but the context around it differs

*Last verified: April 2026 against customs.go.jp/english/summary/passenger.htm and Korea Customs Service (customs.go.kr) duty-free guidance.*