NEXAESIM / TRAVEL KNOW-HOW

The NexaEsim journal

Understand your eSIM. Choose your connection. Make more of your trip.

Vietnam travel montage with Ha Long Bay, Hoi An, rice terraces, Golden Bridge and a NexaEsim phone

eSIM guides

Passport and Photo Requirements for Buying SIM Cards at Vietnam Airports

Planning to buy a local SIM card upon arrival in Vietnam? Travelers should be aware that presenting a physical passport is a mandatory government requirement for SIM card registration at all major Vietnamese airports, including Noi Bai and Tan Son Nhat. While a separate photo is typically not needed, the passport photo is used for verification. This guide explores the process, safety considerations, and convenient alternatives like eSIMs, which offer instant connectivity without the need for in-person document checks.

Jack Nguyen · 7 min readRead guide →

eSIM guides

Vietnam eSIM Guide: Everything You Need to Know Before Your Trip

Planning a trip to Vietnam? This comprehensive guide covers everything you need to know about using an eSIM for seamless connectivity, from understanding compatibility and choosing the right data plan to installation and activation tips. Discover how eSIMs offer a convenient and cost-effective alternative to traditional roaming or physical SIM cards, ensuring you stay connected for navigation, communication, and sharing your travel experiences across Vietnam's cities and scenic landscapes.

Jack Nguyen · 17 min readRead guide →

eSIM guides

Late Night Arrival Vietnam eSIM – First Hour Guide at Airport

Arriving in Vietnam after midnight can present connectivity challenges, with airport SIM counters often closed and public Wi-Fi proving unreliable. This guide explores how a pre-purchased eSIM offers an immediate, stress-free solution for travelers landing late at night in Hanoi, Da Nang, or Ho Chi Minh City. Learn about the practical benefits of eSIMs over physical SIMs, including instant network connection, predictable pricing, and avoiding queues, ensuring you can access essential services like ride-hailing and maps from the moment you land.

Jack Nguyen · 8 min readRead guide →

eSIM guides

How to Use Your Home SIM and Vietnam eSIM at the Same Time (Dual SIM Guide)

Discover how to effectively use Dual SIM technology with your home physical SIM and a Vietnam eSIM to stay connected while traveling. This guide covers the benefits of avoiding roaming fees and keeping your primary number active, essential phone compatibility and unlock requirements, and a step-by-step setup process for seamless data access in Vietnam. Learn how to configure your device, manage communications, and troubleshoot common issues for a smooth travel experience.

Jack Nguyen · 12 min readRead guide →

eSIM guides

Pocket WiFi Deposit in Vietnam: Rules, Hidden Fees, and Better Alternatives

Renting a Pocket WiFi device for connectivity in Vietnam often involves security deposits, hidden fees, and strict return policies that can significantly increase the actual cost. This guide explores the typical deposit requirements, potential charges for late returns or damaged accessories, and compares these factors with the transparent, deposit-free benefits of using an eSIM. Discover how eSIMs offer a flexible and cost-effective alternative for staying connected throughout your trip to Vietnam, avoiding unexpected expenses and logistical complexities.

Jack Nguyen · 10 min readRead guide →

eSIM guides

Sharing Mobile Hotspot in Vietnam: A Practical Guide for Travelers

Traveling in Vietnam with multiple devices or companions often leads to the question of sharing a single internet connection. This guide explores the practicalities of using mobile hotspots in Vietnam, detailing how local networks handle tethering, providing setup instructions for various devices, and offering real-world insights into performance. We compare the cost efficiency of shared versus individual data plans and provide essential tips for different traveler types, including business professionals, families, and digital nomads, to ensure reliable connectivity throughout your trip.

Jack Nguyen · 12 min readRead guide →

eSIM guides

The Ha Giang Loop Connectivity Guide For Travelers

Embarking on the Ha Giang Loop offers breathtaking views but also presents unique challenges for staying connected. This guide explores the digital landscape of Vietnam's northern frontier, detailing mobile network performance, comparing eSIMs with physical SIMs, and offering practical tips to ensure reliable internet access throughout your journey. Learn how to navigate signal dead zones, choose the best network, and leverage eSIM technology for a safer and more connected adventure.

Jack Nguyen · 9 min readRead guide →

eSIM guides

How to Keep WhatsApp Active While Traveling in Vietnam with an eSIM

Traveling to Vietnam and concerned about staying connected on WhatsApp? This guide explains why WhatsApp might behave differently with a new SIM and how a travel eSIM offers a seamless solution. Learn practical steps to maintain your original WhatsApp number, avoid unexpected re-verification, and choose the ideal eSIM plan for uninterrupted communication with family and friends throughout your trip, without incurring high roaming charges.

Jack Nguyen · 9 min readRead guide →

eSIM guides

Why eSIM Is Essential for Business in Vietnam

Vietnam is emerging as a dynamic business hub, making reliable connectivity crucial for professionals. This guide explores why eSIM technology is an indispensable tool for business travelers, offering instant internet access, cost-effective data plans, and seamless management. Discover how eSIMs enhance productivity, simplify travel logistics, and ensure you stay connected from the moment you arrive in bustling cities like Ho Chi Minh City and Hanoi, without the hassle of physical SIM cards or expensive roaming charges.

Jack Nguyen · 7 min readRead guide →

eSIM guides

Exploring eSIM Options for Vietnam: Insights from Reddit Travelers on Local Network Access and Convenience

A recent Reddit discussion highlighted the benefits of using eSIMs for travel in Vietnam, particularly those offering direct access to local networks like Vinaphone and Viettel. Travelers value stable 4G/5G connections, simple online setup, and cost savings compared to traditional roaming. This article explores these advantages, including the importance of choosing the right network for your itinerary, the convenience of a local phone number for apps like Grab, and how various eSIM providers cater to different travel needs. Discover how a dedicated Vietnam eSIM can enhance your connectivity…

Jack Nguyen · 3 min readRead guide →

eSIM guides

Vietnam's 5G Evolution: A Comprehensive Guide for Travelers

Vietnam has rapidly advanced its telecommunications infrastructure, achieving widespread 5G coverage and pioneering 5G-Advanced (5G-A) technology by 2026. This guide explores the timeline of Vietnam's 5G rollout, detailing network quality, coverage areas, and the major carriers like Viettel, Vinaphone, and MobiFone. Travelers can expect significantly faster speeds, enhanced stability, and the practical benefits of 5G for navigation, remote work, and sharing experiences. Learn how to leverage an eSIM to seamlessly connect to Vietnam's high-speed networks from the moment you arrive.

Jack Nguyen · 7 min readRead guide →

eSIM guides

Staying Connected: A Traveler's Guide to Vietnam Airport WiFi and eSIMs

Upon arrival in Vietnam, securing an internet connection is often a top priority. This guide explores the availability and security of free WiFi at major Vietnamese airports, including Noi Bai, Tan Son Nhat, and Da Nang. We detail how to connect, what to expect regarding speed and coverage, and crucial safety precautions for public networks. Additionally, we present eSIMs as a secure and reliable alternative for instant, stable connectivity throughout your trip, offering practical plan comparisons and essential tips for a smooth arrival.

Jack Nguyen · 9 min readRead guide →