Japan Mobile Carrier Plan Comparison

Compare 9 major brands (docomo / au / SoftBank / Rakuten / ahamo / povo / LINEMO / UQ / Y!mobile) and 7 MVNOs (IIJmio, mineo, AEON, BIGLOBE, Nihon Tsushin SIM, HIS, NURO) dynamically by user type (regular / senior / youth), data capacity, call options, overseas use, and various discounts. Last updated: September 6, 2026. All prices include tax. Note: Since September 1, 2026, LINEMO has included up to 7 free days per month of "Overseas Anshin Fixed" (Fixed Country L). Note: docomo mini adds 2GB via campaign since August 1, 2026 (4GB->6GB / 10GB->12GB). Note: Effective July 1, 2026, SB (Teigaku Museigen/Paytoku2/Minifit2), LINEMO, and UQ (Tokutoku2/Komikomi Value) apply an early-termination fee (990–1,650 yen) if canceled within 12 months of new signup.

* This site contains affiliate advertising (PR). The comparison itself remains carrier-neutral.

Big3NTT docomo

Available: docomo MAX (Unlimited 8,448yen) / docomo PoiKatsu MAX (Unlimited 11,748yen — up to 5,000pt rewards via dCard/d-Barai, effective from 2,948yen) / docomo PoiKatsu 20 (20GB 7,898yen, up to 2,500pt) / docomo mini (4GB 2,750yen / 10GB 3,850yen)。eximo / irumo: no longer accepting new applications.

Overseas: "Sekai Sonomama Giga" 980yen/24h (limited discount countries)

Big3au (KDDI)

Available: au Value Link Plan (Unlimited 8,008yen) / MoneyKatsu Value Link 2 (Unlimited 9,328yen — effective from 3,528yen with au Jibun Bank perks, up to 4,500yen rewards) / Unlimited MAX+ (Unlimited 7,788yen) / Unlimited MAX+ MoneyKatsu 2 (Unlimited 9,108yen — effective from 4,608yen with MoneyKatsu perks, up to 4,500yen rewards) / Smartphone Mini Plan+ (~1GB 2,398yen / ~3GB 4,048yen / ~5GB 5,698yen). Age-restricted: U12 Value Plan (ages 5–12, 1,870yen / 550yen after discounts, max 300kbps) / U18 Value Plan (ages 5–18, ~3GB 2,398yen / 3GB–20GB 4,048yen, from 1,078yen after discounts) / Senior Value Plan (ages 60+, 5GB 4,048yen / 2,728yen after discounts, 5-min calls incl.). Listed prices are base fees before discounts.

Overseas: "au Overseas Hodai" 800–1,000yen/24h. Value Link series free up to 15 days/month

Big3SoftBank

From June 2, 2026 new plans: PayToku 2 Unlimited (10,538yen, PayPay +10% rewards up to 4,000yen/month) / Teigaku Unlimited (8,008yen, Overseas Data Unlimited incl.) / Mini Fit 2 (~2GB 5,258yen / ~5GB 6,358yen, 2-step fixed). In parallel: Smartphone Debut+ (ages 5–22 / 60+, 4GB from 1,078yen / 20GB from 2,728yen) also available.Old plans (Merihari Unlimited+ / 3 PayToku plans / Mini Fit+) ended new applications June 1, 2026.

Overseas: "America Hodai" effectively free in USA / Others: "Overseas Packet Unlimited" 2,980yen/day

4th carrierRakuten Mobile

Rakuten Saikyo Plan: 1,078yen up to 3GB / 2,178yen up to 20GB / 3,278yen Unlimited. Domestic calls free via Rakuten Link app.

Overseas: Up to 2GB/month free in 107 countries/regions, after that 500yen/1GB

Onlineahamo (docomo)

30GB 2,970yen (5-min calls incl.) / Omori option +1,980yen brings 110GB 4,950yen. Unlimited calls +1,100yen.

Overseas: Free data use up to 15 days within 30GB cap in 91 countries/regions

Onlinepovo2.0 (au)

Base fee 0yen + topping system. 3GB/30-day 990yen / 20GB/30-day 2,700yen / 150GB/180-day 12,980yen. 5-min unlimited 550yen / Full unlimited 1,650yen.

Overseas: 3 topping types (Area/Regular/Wide). e.g., Korea 1GB/3-day 690yen

OnlineLINEMO (SoftBank)

Best Plan (~3GB 990yen / ~10GB 2,090yen) / Best Plan V (30GB 2,970yen, 5-min calls incl.). LINE Giga Free supported.

Overseas: From Sep 1, 2026, "Overseas Anshin Fixed" (Fixed Country L) is free for up to 7 days per month (worth 6,860yen) in 200+ countries/regions (throttled to 4.5Mbps after 10GB per 24h). From day 8 (and currently): from 980yen/24h

au subUQ mobile

Main: Tokutoku Plan 2 (tiered: ~5GB 2,948yen / ~30GB 4,048yen; with discounts 1,628/2,728yen) / Komikomi Plan Value (35GB + 10-min unlimited + Ponta Pass 3,828yen, no discounts).

Overseas: au Overseas Hodai (24h 1,200yen / reserve discount 800–1,000yen / 160+ countries)

SB subY!mobile

Current: Simple 3 (S=5GB 3,278yen / M=30GB 4,378yen / L=35GB 5,478yen. June 2, 2026 price increase applied). Simple 2 no longer accepting new applications. From June 2, 2026, PayPay Card Discount Bonus (Gold) -220yen/month added.

Overseas: Overseas Anshin Fixed 3GB/24h 980yen / Overseas Packet Unlimited 2,980yen/day (America Hodai not eligible)

Major Plan Monthly Price Comparison (yen, tax incl. / pre-discount)

* Prices based on official information published as of May 2026. Family/fiber/card payment discounts may reduce prices further. Always check the latest info on each carrier's official website.

🎯 Choose your usage style (one-click setup):

↑ Selecting a usage style auto-sets the checkboxes/dropdowns below (can be changed manually).

Showing pre-discount prices

② When conditions are set ↓

📊 Legend: docomo group au group UQ SB group Y!mobile Rakuten MVNO

Plan	0GB	~1GB	~3GB	~5GB	~10GB	~15GB	~20GB	~25GB	~30GB	~35GB	Unlimited
docomo MAX	5,698	5,698	6,798	8,448	8,448	8,448	8,448	8,448	8,448	8,448	8,448
docomo PoiKatsu MAX	11,748(eff. 6,748)	11,748(eff. 6,748)	11,748(eff. 6,748)	11,748(eff. 6,748)	11,748(eff. 6,748)	11,748(eff. 6,748)	11,748(eff. 6,748)	11,748(eff. 6,748)	11,748(eff. 6,748)	11,748(eff. 6,748)	11,748(eff. 6,748)
docomo mini (4GB)	2,750	2,750	2,750	—	—	—	—	—	—	—	—
docomo mini (10GB)	3,850	3,850	3,850	3,850	3,850	—	—	—	—	—	—
docomo PoiKatsu 20	7,898(eff. 5,398)	7,898(eff. 5,398)	7,898(eff. 5,398)	7,898(eff. 5,398)	7,898(eff. 5,398)	7,898(eff. 5,398)	7,898(eff. 5,398)	9,570(eff. 7,070)	9,570(eff. 7,070)	9,570(eff. 7,070)	9,570(eff. 7,070)
ahamo	2,970	2,970	2,970	2,970	2,970	2,970	2,970	2,970	2,970	4,950	—
ahamo PoiKatsu	5,170(eff. 1,170)	5,170(eff. 1,170)	5,170(eff. 1,170)	5,170(eff. 1,170)	5,170(eff. 1,170)	5,170(eff. 1,170)	5,170(eff. 1,170)	5,170(eff. 1,170)	5,170(eff. 1,170)	7,150(eff. 3,150)	—
au Value Link	8,008	8,008	8,008	8,008	8,008	8,008	8,008	8,008	8,008	8,008	8,008
au MoneyKatsu Value Link 2	9,328(eff. 4,828)	9,328(eff. 4,828)	9,328(eff. 4,828)	9,328(eff. 4,828)	9,328(eff. 4,828)	9,328(eff. 4,828)	9,328(eff. 4,828)	9,328(eff. 4,828)	9,328(eff. 4,828)	9,328(eff. 4,828)	9,328(eff. 4,828)
au Unlimited MAX+	7,788	7,788	7,788	7,788	7,788	7,788	7,788	7,788	7,788	7,788	7,788
au Unlimited MAX+ MoneyKatsu 2	9,108(eff. 4,608)	9,108(eff. 4,608)	9,108(eff. 4,608)	9,108(eff. 4,608)	9,108(eff. 4,608)	9,108(eff. 4,608)	9,108(eff. 4,608)	9,108(eff. 4,608)	9,108(eff. 4,608)	9,108(eff. 4,608)	9,108(eff. 4,608)
au Smartphone Mini Plan+	2,398	2,398	4,048	5,698	—	—	—	—	—	—	—
au U12 Value Plan Eligible: ages 5–12 (max 300kbps, 550yen after discounts)	1,870	1,870	1,870	—	—	—	—	—	—	—	—
au U18 Value Plan Eligible: ages 5–18, up to 20GB (from 1,078yen after discounts)	2,398	2,398	2,398	4,048	4,048	4,048	4,048	—	—	—	—
au Senior Value Plan Eligible: ages 60+, 5GB (5-min calls incl., from 2,728yen after discounts)	4,048	4,048	4,048	4,048	—	—	—	—	—	—	—
SB Teigaku Unlimited	8,008	8,008	8,008	8,008	8,008	8,008	8,008	8,008	8,008	8,008	8,008
SB PayToku2 Unlimited	10,538(eff. 6,538)	10,538(eff. 6,538)	10,538(eff. 6,538)	10,538(eff. 6,538)	10,538(eff. 6,538)	10,538(eff. 6,538)	10,538(eff. 6,538)	10,538(eff. 6,538)	10,538(eff. 6,538)	10,538(eff. 6,538)	10,538(eff. 6,538)
SB Mini Fit 2	5,258	5,258	6,358	6,358	—	—	—	—	—	—	—
SB Smartphone Debut+ (4GB) Eligible: ages 5–22 or 60+	1,078	1,078	1,078	—	—	—	—	—	—	—	—
SB Smartphone Debut+ (20GB) Eligible: ages 5–22 or 60+	2,728	2,728	2,728	2,728	2,728	2,728	2,728	—	—	—	—
Rakuten Saikyo Plan	1,078	1,078	1,078	2,178	2,178	2,178	2,178	3,278	3,278	3,278	3,278
povo2.0	0	990	990	1,100	1,800	2,200	2,200	2,200	2,200	3,270	—
LINEMO Best	990	990	990	2,090	2,090	—	—	—	—	—	—
LINEMO Best V	2,970	2,970	2,970	2,970	2,970	2,970	2,970	2,970	2,970	—	—
UQ Tokutoku 2	2,948	2,948	2,948	2,948	4,048	4,048	4,048	4,048	4,048	—	—
UQ Komikomi Value	3,828	3,828	3,828	3,828	3,828	3,828	3,828	3,828	3,828	3,828	—
Y!mobile Simple 3 S	3,278	3,278	3,278	3,278	—	—	—	—	—	—	—
Y!mobile Simple 3 M	4,378	4,378	4,378	4,378	4,378	4,378	4,378	4,378	4,378	—	—
Y!mobile Simple 3 L	5,478	5,478	5,478	5,478	5,478	5,478	5,478	5,478	5,478	5,478	—
━━━━━ MVNO (Mobile Virtual Network Operator) / All-carriers mode starts here ━━━━━
IIJmio Giga Plan Network: docomoau	850	850	850	950	1,400	1,600	2,000	2,000	2,400	2,400	—
mineo MyPita Network: docomoauSoftBank	1,298	1,298	1,298	1,518	1,958	1,958	2,178	2,178	2,178	2,948	—
AEON Mobile Network: docomoau	803	858	1,078	1,298	1,848	1,958	1,958	2,508	2,508	3,058	—
BIGLOBE Mobile Network: docomoau	1,078	1,078	1,320	1,870	3,740	3,740	5,720	8,195	8,195	—	—
Nihon Tsushin SIM Network: docomo	290	290	730	1,170	1,390	1,390	1,390	2,178	2,178	2,178	—
HIS Mobile Network: docomo	280	550	770	990	1,340	2,090	2,090	2,970	2,970	—	—
NURO Mobile Network: docomoauSoftBank	792	792	792	990	1,485	1,790	2,699	2,699	2,699	2,699	—

📋 How to use & read this table

🎛️ 3 steps to use
① ① Set conditions in "Select Conditions": A Prerequisites (display range, user type) → B Usage (call, overseas) → C Discounts (family, fiber, points). If unsure, use the "🎯 Choose your usage style" preset to auto-configure.
② Click the green "✅ Confirm" button to display the results area (Top 3 cards + comparison table).
③ Prices and cheapest cells (yellow + 👑) recalculate in real time as conditions change.

🏆 Reading the Top 3 cards
Top 3 cheapest plans for the selected data capacity. Card colors match carrier brand colors (docomo red, au orange, SoftBank gray, Rakuten red, ahamo blue, povo cyan, LINEMO green, UQ pink, Y!mobile red, MVNO blue).
Each card shows 📞Call / 🎁Points / 🌏Overseas / 🌐Fiber details, with "① Check service area" and "② View campaigns" buttons.

💴 Price display rules
• All plans shown in monthly (30-day) equivalent.
• "—" mark: Plan not offered at that capacity tier (e.g., 5GB+ columns for a 4GB-cap plan).
• "Unlimited" column: Only plans with constant unlimited data show a price. Capped plans (e.g., ahamo 110GB cap, LINEMO V) show "—"; povo has no true unlimited plan and shows "—".
• povo2.0: For each GB tier, shows the cheapest combination of toppings (across various durations) on a monthly basis. E.g., 10–20GB tier: "60GB/90-day 6,490yen ÷3 = 2,163yen/month"; 25–30GB: "365GB/365-day 24,800yen ÷12 = 2,067yen/month"; 35GB: "300GB/90-day 9,834yen ÷3 = 3,278yen/month".
• 1st-year special pricing plans (SB Smartphone Debut+, etc.) show an age-condition badge.

👑 Highlight (cheapest) meaning
• Orange + 👑 ＝ "Cheapest under any condition"(Cheapest by display price without points)
• Yellow + 👑 ＝ "Cheapest with conditions"(Cheapest by effective price with full point rewards)
• In normal mode (point rewards OFF), only yellow is shown.

📞 Call option selection behavior
• Plans directly offering the option → Added to price as-is
• No matching option but upper-compatible option exists → Row turns pale yellow with "⬆️ XX-min plan applied" badge (e.g., UQ/Y!mobile have no 5-min plan, substituted with 10-min 880yen; Rakuten substituted with Rakuten Link free)
• No matching or upper-compatible option → Row grayed out as "N/A" and excluded from cheapest candidates

🎁 Point rewards / -α notation behavior
For eligible plans (docomo PoiKatsu MAX/20, ahamo PoiKatsu, au MoneyKatsu Value Link 2, etc.), effective price with full PoiKatsu rewards shown as a range "○○○–○○○yen". Rakuten Saikyo Plan has indirect Rakuten Ichiba SPU rewards, shown as "2,178yen−α".

👥 User type filter
• Regular: Show plans with no age restriction (default)
• Senior (60+): Regular plans + senior-eligible plans (SB Smartphone Debut+, au Senior Value Plan). Y!mobile 60+ unlimited call -1,100yen discount also considered.
• Youth (≤22yrs): Regular plans + youth-eligible plans (SB Smartphone Debut+, au U12 / U18 Value Plan)

🌐 Display range filter (Major / All carriers)
Selecting "All carriers" displays 7 additional MVNOs (IIJmio, mineo, AEON Mobile, BIGLOBE, Nihon Tsushin SIM, HIS, NURO Mobile) at the bottom of the table. Each MVNO has color-coded network badges (docomo/au/SoftBank); when a MVNO enters the top 3, each carrier network gets its own service area link.

Recommended Plans by Usage

Usage	1st Choice	2nd Choice	Reason
Cheapest (~3GB, few calls)	Rakuten Saikyo Plan 1,078yen	povo2.0 990yen (3GB/30-day)	Around 1,000yen for 3GB. Calls also free via Rakuten Link
Standard usage (20-30GB, 5-min calls)	ahamo 2,970yen	LINEMO Best Plan V 2,970yen	Same price, 30GB, 5-min calls. ahamo for overseas, LINEMO for LINE-heavy users
10-min calls + high capacity bundle	UQ Komikomi Value 3,828yen (35GB + 10-min + Ponta Pass)	Y!mobile Simple 3 M 4,378yen + 880yen (10-min unlimited)	All-in-one with 10-min unlimited. UQ has no extra discounts but easy budget management
Video heavy (Unlimited)	Rakuten Saikyo Plan 3,278yen	au Value Link From 4,928yen (with discounts)	Rakuten is safer with sub-line. au has strong network quality and 15-day overseas free
Heavy caller	Rakuten Saikyo Plan 1,078–3,278yen	LINEMO Best V + Fixed 2,970 + 1,100yen	Fully free via Rakuten Link. Next is LINEMO V Unlimited calls 1,100yen
Frequent overseas travel	ahamo 2,970yen	au Value Link	ahamo: no extra fee for 30GB overseas (91 countries/regions). LINEMO also free for up to 7 days/month from Sep 1, 2026
Frequent USA travel	SB PayToku Unlimited	ahamo	America Hodai: calls & data effectively free in USA (Y!mobile / LINEMO not eligible; however LINEMO gets up to 7 free days/month of Overseas Anshin Fixed from Sep 1, 2026)
Use only when needed (with main line)	povo2.0 From 0yen	Rakuten (~3GB 1,078yen)	povo: 0yen base, top up as needed. Requires 1 topping purchase per 180 days
Senior (60+)	Y!mobile Simple 3 + Super Daretodemo Fixed+ 880yen (60+ discount)	docomo mini 4GB 2,750yen	Y!mobile: 60+ get permanent 880yen unlimited calls. Solid in-store support
Bundle with family / fiber	Y!mobile Simple 3 (fiber bundle -1,650yen)	UQ Tokutoku 2 (various discounts -1,320yen)	Sub-brand strength. Family + fiber discounts make it much cheaper than Big3

📱 Japan Mobile Carrier Plan Comparison