Welcome to Gigago Blog

How to check the eSIM coverage map for my travel destination

Layla

|

Published: December 2024

Before traveling internationally, checking the eSIM coverage map for your travel destination is a crucial [...]

How to troubleshoot invalid or expired eSIM installation issues

Layla

|

Published: December 2024

As eSIM adoption grows, users frequently encounter ‘invalid’ or ‘expired’ errors during installation. Understanding how [...]

Will a travel eSIM change my WhatsApp phone number?

Layla

|

Published: December 2024

Many travelers wonder if a travel eSIM will change their WhatsApp phone number when used [...]

Can I use eSIM to stay connected during long-haul flights and layovers?

Rachel Tran

|

Published: December 2024

For frequent travelers, long-haul flights and layovers can make staying connected a challenge. Whether it’s [...]

China Unicom SIM cards & eSIMs: Detailed Guide for Tourists

Mia Moore

|

Latest update: September 2025

This guide is here to make your trip easier! You’ll learn all about China Unicom [...]

Best Pocket Wifi in China Rental & Alternatives: Travelers Guide

Mia Moore

|

Latest update: May 2025

In this article, you’ll discover everything about pocket wifi in China - from why it’s [...]

How to Get Mobile Internet in China for Travelers: What Option to Choose?

Mia Moore

|

Latest update: January 2025

Whether you're a tourist exploring China's iconic landmarks or a business traveler staying connected with [...]

Buying a SIM Card in Seoul for Travelers: Guide from Locals

Daisy Rodriguez

|

Latest update: January 2025

From comparing carriers to finding the best deals and exploring eSIM alternatives, we’ve got everything [...]

Data Roaming in China: A-Z Guide for Tourists

Mia Moore

|

Latest update: August 2025

This article is crafted for tourists who want smooth internet access but face challenges like [...]

How to switch back to home SIM after the trip

Layla

|

Published: December 2024

Whether you use a physical SIM or eSIM during your trip, this guide will walk [...]

Can I use one eSIM in multiple countries?

Layla

|

Published: December 2024

Using one eSIM in multiple countries simplifies international travel and connectivity. Modern eSIM technology lets [...]

Buying LG U+ South Korea SIM cards & eSIMs: Detailed Guide

Daisy Rodriguez

|

Latest update: August 2025

In this guide, you'll learn everything about LG U+, from its network coverage and speed [...]