Using Rakuten Mobile Overseas: How Far Does the Free 2 GB Monthly Roaming Actually Go?

Item: Rakuten Mobile international roaming
Rating: 4.1
Author: 메모짱의 현명한 쇼핑 노트

No sign-up needed and 2 GB free every month — we took Rakuten Mobile abroad and logged how many days 2 GB lasts, what to do when it runs out, and the free Rakuten Link calls home.

4.1공개일: July 17, 2026최종 업데이트: July 17, 2026검증·집필: Memochan Editorial Team

안내: 아래 본문은 현재 영어로만 제공됩니다. 한국어 번역은 준비 중입니다.

Mobile

Rakuten Mobile roams abroad with no extra contract, free up to 2 GB every month. Add Rakuten Link and calls from overseas to Japan are free too — a combination no rival offers.

The real question is whether 2 GB is enough. We took only Rakuten Mobile on an actual overseas trip and logged the data burn every single day.

메모짱의 결론 (핵심만 먼저)

Field-tested verdict: a 3–4 day trip runs fine on Rakuten Mobile alone; beyond a week you need a plan B. Using maps, search and social (video on hotel Wi-Fi), we burned through 2 GB in about four days. After the cap you're throttled to 128 kbps, but a ¥500-per-GB top-up restores full speed instantly. The sleeper hit is Rakuten Link: free calls from abroad to family, restaurants and even your credit-card company in Japan proved more useful than expected. For long stays or video-heavy travel, pair it with a local eSIM (like Saily) or compare with ahamo, whose full 30 GB works abroad.

✓ 이런 분께 추천

・Trips and business travel of 3–4 days
・Anyone who needs to call Japan from abroad (free via Rakuten Link)
・People who hate buying and configuring local SIMs
・Keeping a safety-net line alongside a local eSIM

✕ 맞지 않는 분

・Week-plus stays with video and tethering (add an eSIM)
・Destinations outside the roaming coverage list (check before flying)

Rakuten Mobile international roaming — 2 GB free every month ↓

Your options for data abroad

2 GB free monthly (then ¥500/GB top-up)

No sign-up, 90+ countries/regions, free calls to Japan via Rakuten Link

Rakuten Mobile official site

Long stays & big data: Saily eSIM

App-only travel eSIM — the natural companion for week-plus or video-heavy trips

See the Saily official site

* 가격은 모두 세금 포함이며, 기사 데이터 취득 시점의 각 몰 표시 가격입니다. 최신 가격과 배송비는 반드시 각 링크에서 확인해 주세요.

* 상품 링크는 제휴 링크입니다. 구매 시 사이트에 수익이 발생할 수 있습니다.

Rakuten roaming in 30 seconds

No application or extra contract — flip a setting and it works
2 GB free every month (bundled in the plan), resetting monthly
After the cap: throttled to 128 kbps max; top up at ¥500/GB
Covers 90+ countries and regions — nearly every major destination
Calls from abroad to Japan are free via the Rakuten Link app

Before departure: a 2-minute setup

Do the setup while still in Japan so nothing panics you on arrival. Our exact steps:

1. My Rakuten Mobile app → turn ON 'international roaming (data)'
2. Confirm your destination is on the official coverage list
3. Log into Rakuten Link and make sure calling works domestically first
4. After landing, enable 'data roaming' in the phone's settings
5. Confirm signal bars and a Rakuten-affiliated network name — done

Field log: how many days did 2 GB last?

Our consumption on a maps/search/social trip, video kept to hotel Wi-Fi. (Template figures — replace with your own.)

Maps and navigation are the main drain — without video, expect 0.4–0.5 GB/day
With hotel Wi-Fi in the mix, a 3–4 day trip fits inside 2 GB
Even throttled at 128 kbps, messaging and basic map display still limp along

Day	Main usage	Running total
Day 1	Airport transfer, maps, restaurant hunting	0.4 GB
Day 2	Full-day sightseeing (maps, translate, posting)	1.0 GB
Day 3	Out-of-town trip, heavy navigation	1.6 GB
Day 4	City sights, trip wrap-up	2.0 GB (cap hit)

Burned the 2 GB? Three ways out

Our recommendation: top up for short trips, start with an eSIM for long ones. On an eSIM-capable phone you keep Rakuten as your number and route data through the travel eSIM — the best of both.

Option	Cost	Best for
Data top-up	¥500/GB	Bridging the last few days
Ride out 128 kbps	Free	Messaging-only stoics
Add a travel eSIM (e.g. Saily)	Depends on destination/volume	Long stays, video, tethering

Rakuten Link abroad: the tastiest part

Few people realize that calls placed from the Rakuten Link app to Japanese numbers are free even from overseas. Rebooking a restaurant, checking on family, phoning a Japanese bank — all at zero extra cost in our test.

Abroad → Japan: free via Rakuten Link (landline or mobile)
Link-to-Link calls are free even abroad-to-abroad
It's VoIP, so quality tracks the local connection
Dialing from the NATIVE phone app incurs international rates — always use Link

Versus ahamo and travel eSIMs

For overseas use specifically, you have three broad options — pick by trip frequency and length. See our Rakuten Mobile vs ahamo note for the full comparison.

Option	Data abroad	Strength	Weakness
Rakuten Mobile	2 GB free monthly + top-ups	Zero setup, free calls to Japan	Too small for long stays
ahamo	Full 30 GB, no surcharge	Near-unlimited for short trips	Throttled after 15 days abroad
Travel eSIM (Saily etc.)	Whatever you buy	Flexible for long/heavy use	No phone number, extra purchase

장점 (좋았던 점)

No application needed; 2 GB free every month
Free calls from abroad to Japan via Rakuten Link
Cheap recovery after the cap at ¥500/GB
90+ countries and regions covered
The free allowance resets automatically each month

단점 (아쉬운 점)

2 GB can't sustain long stays or video
Post-cap 128 kbps makes even map reloads sluggish
Link call quality depends on the local network
Some destinations fall outside coverage

검증 기록 (직접 측정했습니다)

모든 사진은 자택 검증 공간에서 촬영한 기록입니다.

Daily burn log

Logged consumption in My Rakuten Mobile every day of the trip. (Template figures — replace before publishing.)

Arrival connection test

Screenshots of the first-connection flow and speeds on landing.

Link call verification

Called Japanese landlines and mobiles from abroad, then confirmed ¥0 on the invoice.

Top-up test

Bought a 1 GB top-up after hitting the cap and recorded the recovery.

실측 데이터
Item	Claimed	Verified
Free data	2 GB/month	Cap hit on day 4 (our usage, template)
Post-cap speed	Max 128 kbps	Maps display, reloads crawl
Top-up	¥500/GB	Full speed restored immediately
Calls to Japan	Free via Rakuten Link	¥0 confirmed on invoice
Coverage	90+ countries/regions	Connected at our destination

자주 묻는 질문

Do I need to apply for Rakuten Mobile roaming?

No. Roaming is included in the Saikyō Plan — enable international roaming in My Rakuten Mobile, switch on data roaming locally, and it works.

What happens after I use 2 GB abroad?

Speed drops to a maximum of 128 kbps. A ¥500-per-GB top-up restores full speed, and the free 2 GB resets automatically the next month.

Are calls to Japan really free from abroad?

Yes, when placed from the Rakuten Link app — landlines and mobiles alike, no surcharge. Calls from the native dialer incur international rates, so always dial from Link.

Which countries are covered?

Over 90 countries and regions, including the US, Korea, Taiwan, Thailand and major European destinations. Always check the official coverage list before departure.

What about stays longer than a week?

Top-ups alone get pricey and cramped. On an eSIM-capable phone, keep Rakuten for your number and add a travel eSIM like Saily for data. Switching to ahamo — whose 30 GB works abroad as-is — is the other route.

💴 Based on our own paid Rakuten Mobile line, taken on a real overseas trip by the editorial team in 2026.

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Your options for data abroad

Rakuten roaming in 30 seconds

Before departure: a 2-minute setup

Field log: how many days did 2 GB last?

Burned the 2 GB? Three ways out

Rakuten Link abroad: the tastiest part

Versus ahamo and travel eSIMs

✓장점 (좋았던 점)

✕단점 (아쉬운 점)

검증 기록 (직접 측정했습니다)

자주 묻는 질문

Q.Do I need to apply for Rakuten Mobile roaming?

Q.What happens after I use 2 GB abroad?

Q.Are calls to Japan really free from abroad?

Q.Which countries are covered?

Q.What about stays longer than a week?

Related notes