Is Ubigi Japan eSIM Your Best Option? Price & Plan Reviewed

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Written by Maria Gomez
Oct 18, 2024 6-min read

Planning a trip to Japan and looking into Ubigi for your travel eSIM needs? 

With so many plans to choose from, it's easy to feel overwhelmed. Fear not—we’re here to help you make sense of it all.

In this guide, we’ll help you make up your mind by breaking down Ubigi’s data plans, prices, and features, with a focus on the best bang-for-your-yen. In short, we’ll get you on the best plan for you for a well-connected and stress-free visit to Japan!

Ubigi Esim Japan Cover

About Ubigi

Ubigi is one of the biggest names in eSIM services, , offering prepaid data plans similar to iRoamly.

Ubigi delivers global mobile connectivity for smartphones, tablets, laptops, and even connected cars. Its partnerships with major brands like Apple and Microsoft ensure travelers maintain internet access on their iOS or Windows 10 devices. Their service is also built into certain vehicle models from Alfa Romeo, Jeep, Jaguar, and other automakers to power navigation and connected services via a dedicated Ubigi SIM card.

With modern, connected cars rapidly becoming the norm, Ubigi is a one-stop solution for personal tech and automotive connectivity.

Ubigi Japan eSIM Plan

Ubigi Japan eSIM Packages & Data Plan Characteristics

Ubigi’s Japan eSIM options are segmented into one-off, monthly, and annual data plans, each serving different travel needs:

  • One-Off Plans: Good for shorter trips; top-up whenever you've used all your data.

  • Monthly Plans: An allowance of GB per month suitable for longer stays; cancel after three months.

  • Annual Plans: Pay once, get a monthly data allotment for no more money.

Here's a slightly deeper look:

Data Plan

Features

Validity Periods Range

One-Off

Fixed data amounts: 500MB, 1GB, 3GB, 10GB, 25GB, unlimited

7/15/30 days

Monthly

5GB per month, automatically renews

30 days

Annual

24GB or 60GB total for the year, divided into monthly allowances of 2GB or 5GB

12 months

Ubigi also offers regional packages such as 10GB of data in Asia and various World plans with 500MB to 20GB of data.

Ubigi Japan eSIM Price Comparison with iRoamly, Airalo & Holafly

Here's how Ubigi's pricing stacks up against other eSIM providers in Japan:

Providers

Daily 

500MB

Unlimited - 1 day

Unlimited - 7 Days

Unlimited 30 days 

1 GB/30 Days

3GB - 30 Days

10 GB/30 Days

Monthly 5 GB

Annual 24 GB, 2GB/month

Annual 60 GB, 5GB/month

Ubigi

$2.5  

N/A

$28 

N/A

$4   

$8   

$17   

$9 

$36 

$96 

iRoamly

$2

$4

$22

$62

N/A

$7.5 

$14.5 

$8 

N/A

N/A

Airalo

N/A

N/A

N/A

N/A

$4.5 (7 days) 

$8.5  

$18 

$11.5 

N/A

N/A

Holofly 

N/A

$5.9

$28.9 

$74.9 

N/A

N/A

N/A

N/A

N/A

N/A

So, Ubigi's got some plans that really pack a punch for the price, but others might make you think twice because they’re a bit pricier.

How to Picking the Right Ubigi Japan eSIM Plan?

Consider how much data you really need.

If You Use Little Data (1 to 3GB): 

Need to stay connected for a long haul but don't use much data? Check out Ubigi’s 1GB or 3GB/30 days plans.  

Just need data for a few days? The daily one-off plans are present, but heads up—brands like iRoamly Japan eSIM might offer more plans that can save you some cash. Using a data usage calculator can help you choose the right plan by estimating how much data you’ll actually need.

Japan eSIM 3GB 30 Days Ubigi vs iRoamly

For the Regular Data Users (3 to 10 GB):

If you're anticipating needing a lot of data across the month, the 3GB/30 days for $8 and 10GB plans could be a safe bet. They're not the cheapest around, but they're still very competitive.

For the Data Hungry (10 GB+ to Unlimited):

Need tons of data for your travels? Ubigi’s unlimited plans are there for you. 

However, the Unlimited 7 Days for $28 data plan is more expensive than iRoamly's 1GB for $22. If you're using massive amounts of data for a week, that $6 saving could be worth looking into.

Or planning to use loads of data in one day? iRoamly’s 500MB, 1GB, or their $4 unlimited daily plans are worth a peek.

Long-Term Visitors:

If you're a frequent traveler to Japan, or staying in the country for a while, Ubigi's longer term plans, including the 24GB for $36 annual plan, could offer a steady flow of data at a consistent cost, rather than worrying about re-upping frequently or changing plans. 

Ubigi eSIM Annual Plan

So the bottom line when it comes to Ubigi’s eSIM plans is to consider how long you'll be in Japan, how much data you'll actually require, and how the plans compare to competitors. 

Additional Information on Ubigi Japan eSIMs

Feature

Description

Operators

KDDI, NTT DoCoMo, etc

Offered Networks

5G, 4G, 3G, LTE (varies by operator)

Phone Call & SMS

Offers data-only plans; no voice calls or SMS.

Device Compatibility

Compatible with various smartphones and tablets

Operating Systems

iOS, Android, and others

Activation

Quick setup via QR code

Data Management

Tools to track and manage usage

Customer Support

Available primarily in English via email

Hotspot Capability

Supported for sharing your connection

FAQs

How do I activate and use my Ubigi eSIM in Japan? 

You’ll receive a QR code from Ubigi to activate your eSIM. It’s pretty much plain sailing from there, but be sure your device is compatible, and unlocked for good measure.

Can I use an eSIM on my phone?

Yes, many modern phones are equipped with eSIM support. To confirm if your phone is capable of using an eSIM, you should check your device's specifications or refer to the eSIM compatibility list provided by your carrier.

Is it possible to obtain a Ubigi eSIM for free? 

Sometimes Ubigi runs promotions for free eSIMs – keep an eye on their site, or subscribe to find out more.

Can I make voice calls with my Ubigi eSIM? 

Ubigi’s eSIMs are data-only, so no voice call or SMS functionality. You can use a chat App, like WhatsApp, as an alternative. 

Ubigi Data Only

Summary

So there you have it.

When it comes to staying online while traveling in Japan, Ubigi's eSIM plans should have something suitable for everyone, from those who barely need any data at all to those who consume it like water. 

Just calculate how long you are staying, work out how much data you really need, and see how the plans compare to the competition. Happy travels, and may your data flow as freely as your travels!