Wise and Revolut give you mid-market rates with transparent ~0.5% fees. Roughly ¥6,000 saved on a $1,500 trip. Order before you fly and you'll skip the counter queues entirely.
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Japan SIM Card & eSIM Complete Comparison — Quick Answer: Airalo / Holafly / Sakura / Mobal Pricing and Speed
⚡ 30-second answer: Comparison of 6 major Japan SIM / eSIM providers = (1) Airalo eSIM ($4.5 / 1GB-7 days) (2) Holafly eSIM ($24 / 7 days unlimited) (3) Mobal (eSIM from ¥4,620 / 10GB-16 days, physical SIM also available) (4) Sakura Mobile (¥3,000–8,000 / month) (5) Rakuten Mobile (temporary use) (6) Pocket Wi-Fi rental. With eSIM-compatible devices (iPhone XS or later), Airalo at $4–25 with same-day activation is the strongest option.
Quick reference
Value
Airalo
$4.5–25
Holafly
$24 / week
Mobal
from ¥4,620 / 16 days (eSIM)
Sakura
¥3–8K / month
eSIM same-day
iPhone XS or later
Last verified
June 2026
✓ Last verified: Jun 2026
📖6 min read
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Contents
30-second answer
eSIM has revolutionized connectivity for visitors to Japan. Airalo + iPhone XS or later means same-day activation, and a week of data for $4–25. Physical SIMs and Pocket Wi-Fi are supplementary.
📱 6-Provider Comparison Table
Provider
Type
Data
Price
Period
Airalo
eSIM
1GB
$4.5
7 days
Airalo
eSIM
5GB
$11
30 days
Airalo
eSIM
20GB
$25
30 days
Holafly
eSIM
Unlimited
$24
7 days
Holafly
eSIM
Unlimited
$36
15 days
Mobal
SIM
25–50GB
¥5,800–7,920
8–31 days
Mobal
eSIM
10GB–Unlimited
¥1,650–12,300
3–31 days
Sakura Mobile
SIM
1–50GB
¥3,000–8,000
30 days
Rakuten Mobile
SIM
Unlimited
¥3,278
Monthly
WiFi BB
Pocket Wi-Fi
1GB–unlimited
¥800–2,000 / day
1 day
🥇 Airalo (Most Popular)
Features
eSIM specialist
Same-day activation after install
200+ countries supported
Multilingual
Plans
1GB / 7 days: $4.5
3GB / 15 days: $9.5
5GB / 30 days: $11
10GB / 30 days: $17
20GB / 30 days: $25
Pros
Cheapest
Same-day activation
Easy management via app
Cons
Requires eSIM-compatible device
No voice calls
No local phone number
🌟 Holafly (Unlimited)
Features
Unlimited plans
eSIM specialist
Multilingual
Plans
Unlimited / 5 days: $19
Unlimited / 7 days: $24
Unlimited / 10 days: $29
Unlimited / 15 days: $36
Unlimited / 30 days: $54
Pros
Heavy usage OK
Video streaming OK
Shareable
Cons
Pricier than Airalo
Requires eSIM-compatible device
🌸 Sakura Mobile (Japan-Focused)
Features
Japan-only SIM
Physical SIM
For long-term stays
Plans
1GB / month: ¥3,000
3GB / month: ¥3,500
10GB / month: ¥5,000
50GB / month: ¥8,000
Pros
Includes Japanese phone number
30-day+ plans
Tourist-friendly
Cons
Airport counter pickup
No eSIM
🇯🇵 Mobal (Traveler-Focused)
[PR] Through our Mobal link, plans with a Japanese phone number are automatically 10% off (no code needed). Mobal support is in English and Chinese.
Features
Sells both physical SIMs and eSIMs (Docomo network)
Data-only plans have no phone number. If you need a Japanese number, choose Voice+Data (¥4,950 upfront plus a monthly plan)
Prices include tax
Plans (data-only, tax included, as of October 2026)
eSIM Unlimited: ¥1,650 for 3 days up to ¥12,300 for 31 days (¥3,850 for 7 days)
eSIM 10GB: ¥4,620 / 16 days, ¥5,950 / 31 days
eSIM 50GB: ¥5,170 / 16 days, ¥6,600 / 31 days
SIM 25GB / 8 days: ¥5,800
SIM 50GB: ¥6,490 / 16 days, ¥7,920 / 31 days
Pros
eSIMs arrive by email, so you can set up before you fly
Physical SIMs can be picked up the same day in Japan or shipped free worldwide
Plans with a Japanese phone number are available
Cons
Data-only SIMs/eSIMs can't make calls or send SMS
Phone-number plans require passport ID, and even the eSIM access code is sent by post
📡 Pocket Wi-Fi Rental
WiFi BB
1GB to unlimited plans
¥800–2,000 / day
Multiple devices supported
Sky Berry
Similar competitor
¥600–1,800 / day
Booking via Klook
Tourist coupons available
Multilingual
Pros
Multiple devices supported
No eSIM needed
Shareable
Cons
Need to carry it
Needs charging
🛂 eSIM-Compatible Devices
iPhone (eSIM support)
iPhone XS or later
iPhone SE 2nd gen or later
Android (eSIM support)
Pixel 4 or later
Galaxy S20 or later
Xiaomi Mi 10 or later
How to check
Settings > Mobile > Can you add an eSIM?
If not supported, use physical SIM or Pocket Wi-Fi
📅 Recommendations by Use Case
Sightseeing (1–7 days)
Airalo 1–3GB: $4–10
Enough data + great value
Mid-term stay (8–30 days)
Airalo 10–20GB: $17–25
Holafly Unlimited 7–15 days
Heavy video / Zoom
Holafly Unlimited
Video streaming OK
Long-term stay (30 days+)
Sakura Mobile: ¥3–8K / month
Includes Japanese phone number
Business / work trips
Mobal: Physical SIM + stable
Sakura Mobile: For long-term
🎯 Recommended Patterns for Tourists
Pattern 1: Best value
Airalo 5GB / $11
30-day coverage
Plenty for sightseeing
Pattern 2: Want to watch videos
Holafly Unlimited / $24–36
YouTube / Netflix OK
Pattern 3: Maximum stability
Sakura Mobile 10GB
¥5,000 + Japanese phone number
Pattern 4: Group travel
WiFi BB Unlimited
¥2,000 / day + share with up to 5 people
📡 Connection Speed & Coverage
Carriers used by SIMs
NTT docomo: Fastest nationwide
Softbank: Fast in cities
au / KDDI: Stable nationwide
Rakuten Mobile: Cities only
Airalo speed
Average 10–30 Mbps
YouTube 480p–1080p OK
Holafly speed
Average 15–40 Mbps
1080p video OK
Pocket Wi-Fi speed
15–50 Mbps
Fastest
💡 Tourist Setup Guide
Step 1: Before departure
Download Airalo / Holafly app
Have credit card ready
Step 2: Purchase
Buy in the app
Get eSIM QR code
Step 3: Install
iPhone: Settings > Mobile > Scan QR
Android: Same process
Step 4: Arrival
eSIM activates automatically
Instant connectivity
🌐 eSIM Price Comparison by Country
Japan 1 week
Airalo: $11 (5GB)
Holafly: $24 (Unlimited)
Average: $10–25
Japan + multiple Asian countries
Airalo Asia 30 days: $25–50
Holafly Unlimited: $40–70
Global
Airalo Global: $25–50
Holafly Global: $40–100
⚠️ Things to Watch
Throttling
Speed drops when you use up data
Even unlimited plans throttle after 1–3 days of heavy use
Budget your video carefully
Support
Multilingual chat
Email support
No phone support
Cancellation
Easy in-app
Watch out for auto-billing
Top 5 Mistakes Tourists Make
Buying for a non-eSIM device → can't use it
Too little data → run out mid-trip
Over-relying on airport Wi-Fi → struggle at stations / on trains
Forgetting to swap physical SIM → SIM swap wipes data
Forgetting to cancel → auto-billing
Pre-Departure Checklist
Confirm eSIM-compatible device
Download Airalo / Holafly app
Have credit card ready
Estimate data needs
Backup SIM for emergencies
FAQ
Q: SIM vs eSIM — which is cheaper?
A: eSIM is generally cheaper and less hassle. If your device supports eSIM, go with eSIM.
Q: Do I need a Japanese phone number?
A: Useful for PayPay SMS verification. Not needed for sightseeing only.
Q: Will it work on a SIM-locked phone from abroad?
A: Major carrier devices are now SIM-unlocked by default. No issue with eSIM-compatible devices.
Q: Holafly is unlimited but slow?
A: Speed drops on weekday afternoons and peak hours. Comfortable at night and early morning.
Q: What about Pocket Wi-Fi charging?
A: Pair with a power bank. 8–12 hours of battery life.
Editorial info: Yen Finder Editorial / Last verified June 2026. Pricing and plans change, so check each provider's official site for the latest.