Prices checked 24 Oct 2026
Japan eSIM Data Plans (2026):
Live Price Tracker
Every Japan plan from Airalo, Holafly, eSIM Go and Sakura Mobile in one sortable table — with a tool that picks the cheapest plan for your exact trip.
Affiliate disclosure: Some links on this page are affiliate links. We may earn a small commission if you buy through them, at no extra cost to you. This doesn't affect our rankings or comparisons — the table is sorted by the numbers, not by commission. Full disclaimer →
Cheapest plan
eSIM Go 1 GB / 7 days ($3.99)
Best value per GB
eSIM Go 100 GB / 30 days — $0.82/GB
Cheapest unlimited (7+ days)
eSIM Go Unlimited / 7 days ($22.99)
Most travellers should buy: eSIM Go 5 GB / 30 days ($9.99) — 5 GB covers two weeks of maps, messaging and social media. Need a Japanese phone number or English phone support? Sakura Mobile is the only provider here that offers both.
Find my cheapest plan ↓Tell Us Your Trip — We'll Pick the Plan
Find the cheapest plan for your trip
Cheapest for 10 days & 7 GB: eSIM Go 10 GB / 30 days at $13.99
That's $1.40 per GB with 10 GB of high-speed data over 30 days. Compared against 21 other qualifying plans.
- 1
eSIM Go — 10 GB / 30 daysBest price
Docomo / SoftBank · 20 spare days
- 2
Airalo — 10 GB / 15 days
SoftBank / KDDI (5G) · 5 spare days
- 3
Airalo — 10 GB / 30 days
SoftBank / KDDI (5G) · 20 spare days
- 4
eSIM Go — 20 GB / 30 days
Docomo / SoftBank · 20 spare days
- 5
Airalo — 20 GB / 15 days
SoftBank / KDDI (5G) · 5 spare days
Prices in USD, last checked 24 Oct 2026. The finder only lists plans whose validity covers your whole trip and whose data allowance meets your estimate; it doesn't stack multiple plans.
Every Japan eSIM Plan, Sorted by Price per GB Prices checked daily
Click any column header to re-sort. Unlimited plans have no per-GB price, so they sit at the bottom when sorting by data or $/GB — sort by Price or Validity to compare them directly.
| Network | ||||||
|---|---|---|---|---|---|---|
| Sakura Mobile | 90 GB3 GB/day high-speed, then reduced speed (Docomo) | 30 days | $65.07 | $0.72/GB | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| eSIM Go | 100 GB | 30 days | $81.99 | $0.82/GB | Docomo / SoftBank | Buy → |
| eSIM Go | 50 GB | 30 days | $41.99 | $0.84/GB | Docomo / SoftBank | Buy → |
| Sakura Mobile | 45 GB3 GB/day high-speed, then reduced speed (Docomo) | 15 days | $46.99 | $1.04/GB | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| eSIM Go | 20 GB | 30 days | $23.99 | $1.20/GB | Docomo / SoftBank | Buy → |
| Airalo | 20 GB | 15 days | $24.00 | $1.20/GB | SoftBank / KDDI (5G) | Buy → |
| Sakura Mobile | 30 GB3 GB/day high-speed, then reduced speed (Docomo) | 10 days | $36.87 | $1.23/GB | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| Airalo | 20 GB | 30 days | $25.00 | $1.25/GB | SoftBank / KDDI (5G) | Buy → |
| eSIM Go | 10 GB | 30 days | $13.99 | $1.40/GB | Docomo / SoftBank | Buy → |
| Sakura Mobile | 21 GB3 GB/day high-speed, then reduced speed (Docomo) | 7 days | $30.36 | $1.45/GB | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| Sakura Mobile | 15 GB3 GB/day high-speed, then reduced speed (Docomo) | 5 days | $25.30 | $1.69/GB | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| Airalo | 10 GB | 7 days | $17.00 | $1.70/GB | SoftBank / KDDI (5G) | Buy → |
| Airalo | 10 GB | 15 days | $17.50 | $1.75/GB | SoftBank / KDDI (5G) | Buy → |
| Airalo | 10 GB | 30 days | $18.00 | $1.80/GB | SoftBank / KDDI (5G) | Buy → |
| eSIM Go | 5 GB | 30 days | $9.99 | $2.00/GB | Docomo / SoftBank | Buy → |
| Airalo | 5 GB | 7 days | $10.00 | $2.00/GB | SoftBank / KDDI (5G) | Buy → |
| Sakura Mobile | 9 GB3 GB/day high-speed, then reduced speed (Docomo) | 3 days | $18.07 | $2.01/GB | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| Airalo | 5 GB | 15 days | $10.50 | $2.10/GB | SoftBank / KDDI (5G) | Buy → |
| Airalo | 5 GB | 30 days | $11.00 | $2.20/GB | SoftBank / KDDI (5G) | Buy → |
| eSIM Go | 3 GB | 30 days | $6.99 | $2.33/GB | Docomo / SoftBank | Buy → |
| Airalo | 3 GB | 3 days | $7.50 | $2.50/GB | SoftBank / KDDI (5G) | Buy → |
| Airalo | 3 GB | 7 days | $8.00 | $2.67/GB | SoftBank / KDDI (5G) | Buy → |
| eSIM Go | 2 GB | 15 days | $5.49 | $2.75/GB | Docomo / SoftBank | Buy → |
| eSIM Go | 1 GB | 7 days | $3.99 | $3.99/GB | Docomo / SoftBank | Buy → |
| Airalo | 1 GB | 3 days | $4.00 | $4.00/GB | SoftBank / KDDI (5G) | Buy → |
| eSIM Go | UnlimitedUnlimited Essential — speed reduced after daily high-speed allowance | 1 day | $5.99 | — | Docomo / SoftBank | Buy → |
| eSIM Go | UnlimitedUnlimited Essential — speed reduced after daily high-speed allowance | 3 days | $10.99 | — | Docomo / SoftBank | Buy → |
| Airalo | UnlimitedFair-use policy applies | 3 days | $11.50 | — | SoftBank / KDDI (5G) | Buy → |
| Holafly | UnlimitedHotspot capped at 1 GB/day | 3 days | $11.90 | — | SoftBank / KDDI (5G) | Buy → |
| eSIM Go | UnlimitedUnlimited Essential — speed reduced after daily high-speed allowance | 5 days | $16.99 | — | Docomo / SoftBank | Buy → |
| Airalo | UnlimitedFair-use policy applies | 5 days | $17.00 | — | SoftBank / KDDI (5G) | Buy → |
| Holafly | UnlimitedHotspot capped at 1 GB/day | 5 days | $20.50 | — | SoftBank / KDDI (5G) | Buy → |
| Sakura Mobile | UnlimitedUnlimited on-device (au/KDDI); hotspot allowance by plan length | 3 days | $21.33 | — | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| eSIM Go | UnlimitedUnlimited Essential — speed reduced after daily high-speed allowance | 7 days | $22.99 | — | Docomo / SoftBank | Buy → |
| Airalo | UnlimitedFair-use policy applies | 7 days | $26.50 | — | SoftBank / KDDI (5G) | Buy → |
| Holafly | UnlimitedHotspot capped at 1 GB/day | 7 days | $27.50 | — | SoftBank / KDDI (5G) | Buy → |
| Sakura Mobile | UnlimitedUnlimited on-device (au/KDDI); hotspot allowance by plan length | 5 days | $30.00 | — | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| eSIM Go | UnlimitedUnlimited Essential — speed reduced after daily high-speed allowance | 10 days | $32.99 | — | Docomo / SoftBank | Buy → |
| Airalo | UnlimitedFair-use policy applies | 10 days | $34.50 | — | SoftBank / KDDI (5G) | Buy → |
| Holafly | UnlimitedHotspot capped at 1 GB/day | 10 days | $36.50 | — | SoftBank / KDDI (5G) | Buy → |
| Sakura Mobile | UnlimitedUnlimited on-device (au/KDDI); hotspot allowance by plan length | 7 days | $37.95 | — | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| eSIM Go | UnlimitedUnlimited Essential — speed reduced after daily high-speed allowance | 15 days | $47.99 | — | Docomo / SoftBank | Buy → |
| Airalo | UnlimitedFair-use policy applies | 15 days | $48.00 | — | SoftBank / KDDI (5G) | Buy → |
| Sakura Mobile | UnlimitedUnlimited on-device (au/KDDI); hotspot allowance by plan length | 10 days | $48.44 | — | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| Holafly | UnlimitedHotspot capped at 1 GB/day | 15 days | $50.50 | — | SoftBank / KDDI (5G) | Buy → |
| Sakura Mobile | UnlimitedUnlimited on-device (au/KDDI); hotspot allowance by plan length | 15 days | $63.62 | — | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
| Airalo | UnlimitedFair-use policy applies | 30 days | $69.00 | — | SoftBank / KDDI (5G) | Buy → |
| Holafly | UnlimitedHotspot capped at 1 GB/day | 30 days | $73.90 | — | SoftBank / KDDI (5G) | Buy → |
| Sakura Mobile | UnlimitedUnlimited on-device (au/KDDI); hotspot allowance by plan length | 30 days | $95.79 | — | au/KDDI (Unlimited) or Docomo (3 GB/day) | Buy → |
Prices in USD as listed on each provider's official site, checked automatically every day. All plans are data-only. Sakura Mobile's 3 GB/day plans are shown with their total high-speed allowance (3 GB × days). Prices at checkout can differ slightly due to your local currency or promotions.
When Was Each Price Last Verified?
A script reads each provider's official pricing page once a day. If a page can't be read, we keep the last verified numbers rather than guessing — so the “checked” date below tells you exactly how fresh each row is.
Provider Snapshot
| Provider | Network | Cheapest plan | Best $/GB | Cheapest unlimited | |
|---|---|---|---|---|---|
| Airalo | SoftBank / KDDI (5G) | $4.00 1 GB / 3 days | $1.20/GB 20 GB / 15 days | $11.50 Unlimited / 3 days | Get Airalo → |
| Holafly | SoftBank / KDDI (5G) | unlimited only | — | $11.90 Unlimited / 3 days | Get Holafly → |
| eSIM Go | Docomo / SoftBank | $3.99 1 GB / 7 days | $0.82/GB 100 GB / 30 days | $5.99 Unlimited / 1 day | Get eSIM Go → |
| Sakura Mobile | au/KDDI (Unlimited) or Docomo (3 GB/day) | $18.07 9 GB / 3 days | $0.72/GB 90 GB / 30 days | $21.33 Unlimited / 3 days | Get Sakura Mobile → |
| Klook Japan eSIM | Not stated on the listing | Check on Klook | — | — | Check Klook eSIM prices → |
Klook's own Japan eSIM is listed last and without figures: the four providers above are read automatically from their pricing pages every day, and Klook's listing could not be read on 19 Oct 2026. It is therefore absent from the sortable table and the plan finder, which only work on verified prices.
How Much Data Do You Need?
| Activity | Estimated Per Day |
|---|---|
| Google Maps navigation | ~50 MB |
| Social media browsing | ~150 MB |
| Streaming video (SD) | ~500 MB |
| Video calls | ~300 MB |
| Light use total | ~300 MB |
| Heavy use total | ~1.5 GB |
Most travellers to Japan fall into the “light” or “average” category — maps, messaging, and Instagram. At ~300–700 MB/day, a 5 GB plan covers one to two weeks comfortably. If you stream video on trains, make regular video calls, or tether a laptop, budget 1–1.5 GB per day or go unlimited.
Best Plan by Trip Length (Average User)
3 days (~2.1 GB) → eSIM Go 3 GB / 30 days at $6.99
Cheapest plan that covers 3 days with at least 2.1 GB. Prefer unlimited? eSIM Go Unlimited / 3 days is $10.99.
7 days (~4.9 GB) → eSIM Go 5 GB / 30 days at $9.99
Cheapest plan that covers 7 days with at least 4.9 GB. Prefer unlimited? eSIM Go Unlimited / 7 days is $22.99.
14 days (~9.8 GB) → eSIM Go 10 GB / 30 days at $13.99
Cheapest plan that covers 14 days with at least 9.8 GB. Prefer unlimited? eSIM Go Unlimited / 15 days is $47.99.
30 days (~21 GB) → eSIM Go 50 GB / 30 days at $41.99
Cheapest plan that covers 30 days with at least 21 GB. Prefer unlimited? Airalo Unlimited / 30 days is $69.00.
Based on ~0.7 GB/day. Use the finder at the top of the page to change the trip length or usage level.