Best eSIM for Unlimited Data: Top Providers and What You Need to Know

In today’s hyper-connected world, having unlimited data while traveling is a dream come true. Whether you’re a digital nomad, a remote worker, or just someone who loves streaming videos and staying connected on the go, an unlimited data eSIM can be a lifesaver. However, finding a truly unlimited eSIM plan is tricky since most providers impose fair usage policies that slow down data speeds after reaching a daily or monthly limit.

This guide will explore the best eSIM options for unlimited data, compare their features, and help you make an informed decision.

Do You Really Need Unlimited Data?

Before diving into the best eSIM providers, consider whether you actually need unlimited data. Many travelers and digital nomads find that 10GB to 20GB per month is sufficient for navigation, emails, and occasional streaming. If you’re constantly downloading large files, streaming in high definition, or using data-heavy applications, then an unlimited plan might be worth it.

However, “unlimited” doesn’t always mean truly unlimited. Many providers have a Fair Use Policy (FUP) that throttles your data speeds after a certain limit (usually 1GB to 3GB per day). This means that even if you have an unlimited plan, your speeds may be significantly reduced after you hit the daily cap.

Best eSIM Providers for Unlimited Data

Here are the top providers that offer unlimited (or near-unlimited) data plans:

1. Sakura Mobile

• Website: Sakura Mobile
• Best For: Travelers to Japan
• Key Features:
  • Unlimited data with a 3GB/day high-speed limit (after which speeds are throttled)
  • Excellent coverage across Japan
  • 4G/LTE speeds available
  • Works with major Japanese carriers
• Pros:
  • Reliable and great for tourists
  • Easy online setup
  • Good customer support
• Cons:
  • Data speeds slow down significantly after the 3GB/day limit
  • Limited to Japan only

2. Mobal

• Website: Mobal
• Best For: Travelers looking for long-term plans
• Key Features:
  • Unlimited data plans available
  • Coverage throughout Japan
  • Long-term validity (up to 1 year)
• Pros:
  • Great for long-term visitors
  • No hidden fees
  • Offers both prepaid and postpaid options
• Cons:
  • Fair use policy applies
  • Higher cost compared to some competitors

3. Ninja WiFi

• Website: Ninja WiFi
• Best For: Short-term travelers needing high data usage
• Key Features:
  • Unlimited data plans available
  • High-speed connection
  • Can be used in multiple countries
• Pros:
  • Great for business travelers
  • Reliable connectivity
• Cons:
  • Extremely expensive compared to other eSIM options
  • Limited flexibility in plan selection

4. Airalo

• Website: Airalo (Use code ABDALL6368 for a $3 discount)
• Best For: Global travelers
• Key Features:
  • eSIMs available for 190+ countries
  • Affordable unlimited data plans in select locations
  • Easy activation via the Airalo app
• Pros:
  • Excellent coverage worldwide
  • Competitive pricing
  • User-friendly app
• Cons:
  • Fair usage policy applies, meaning speeds may slow down after hitting a daily cap
  • Some regions have limited speed availability

5. Ubigi

• Website: Ubigi
• Best For: Frequent travelers who need consistent data
• Key Features:
  • Coverage in over 150 countries
  • Multi-region eSIM support
  • Flexible prepaid and subscription plans
• Pros:
  • Easy setup and activation
  • High-speed data in most regions
• Cons:
  • No true unlimited plans (fair use policy applies)
  • Not the cheapest option

How to Buy and Activate an eSIM for Unlimited Data

Setting up an eSIM is quick and easy compared to traditional SIM cards. Here’s how you can get started:

1. Choose an eSIM provider – Based on your travel needs, select the best eSIM provider from the list above.
2. Purchase a plan – Go to the provider’s website and choose the unlimited data plan that best fits your budget and requirements.
3. Receive the QR code – After purchasing, the provider will send you a QR code via email or in their app.
4. Activate the eSIM – On your smartphone:
   • Go to Settings > Cellular > Add Cellular Plan
   • Scan the QR code
   • Follow the setup instructions
5. Set the eSIM as your primary data source – Under Settings, ensure that your eSIM is selected as your primary mobile data connection.
6. Manage data usage – To optimize data usage and avoid throttling, enable Low Data Mode on iOS:
   • Go to Settings > Cellular > Select your eSIM line > Data Mode > Enable Low Data Mode

Final Thoughts: Which eSIM Should You Choose?

If you need unlimited data, you should choose based on your specific needs:

• For travelers to Japan: Sakura Mobile is the best option with a 3GB/day limit.
• For long-term visitors: Mobal provides great plans with strong coverage.
• For business travelers with high data needs: Ninja WiFi is an option (but very expensive).
• For global travelers: Airalo and Ubigi offer excellent international coverage.

Ultimately, no eSIM provider offers truly unlimited high-speed data without throttling. However, choosing a provider with a high daily cap (e.g., Sakura Mobile’s 3GB/day) ensures a great experience.

Before choosing a plan, assess your actual data needs, and opt for a provider that offers the best balance between cost, coverage, and data speed.

Do you have experience using an eSIM for unlimited data? Let us know in the comments below!

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