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 SIM (¥3,500 / 30 days) (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	¥3,500 / 30 days
Sakura	¥3–8K / month
eSIM same-day	iPhone XS or later
Last verified	June 2026

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

🥇 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)

Features

• Physical SIM + eSIM both supported
• Airport counter
• Multilingual

Plans

• 1GB / 30 days: ¥3,500
• 3GB / 30 days: ¥4,500
• 15GB / 30 days: ¥6,500
• Unlimited / 30 days: ¥8,500

Pros

• Airport pickup
• Tourist-friendly

Cons

• Few eSIM options

📡 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

1. Buying for a non-eSIM device → can't use it
2. Too little data → run out mid-trip
3. Over-relying on airport Wi-Fi → struggle at stations / on trains
4. Forgetting to swap physical SIM → SIM swap wipes data
5. 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.