Popular eSIM in Hoa Kỳ

Most mainstream smartphones released in recent years support eSIM functionality, such as iPhone XR and later models, Samsung Galaxy S20 series and later models, Google Pixel 3 and later models, among others. The most direct way to check if your phone supports eSIM is to look in your phone's settings. You can find options like 'Cellular' or 'Network & internet' and look for 'Add a cellular plan' or 'eSIM' related options. Additionally, you can consult your phone manufacturer's official website or product specifications for the most accurate information.

The process of installing a US eSIM is usually quite simple. First, ensure your phone is connected to a stable Wi-Fi network. You will receive an eSIM QR Code; scan this QR Code with your phone's camera or manually enter the activation code. After scanning, the system will guide you through adding a cellular plan, so please follow the prompts to complete the setup. Once installed, go to your phone's 'Cellular' or 'Network Settings' and set your US eSIM as your primary or secondary network, and turn on 'Data Roaming'. You can typically use it immediately without needing to restart your phone.

Both eSIM and physical SIM cards have their advantages, and the choice depends on your needs. eSIM's benefits lie in its convenience and speed; you don't need to physically insert or remove it, and it can be activated instantly by scanning a QR code, making it ideal for short trips or frequent travelers. You can keep your existing physical SIM card in your phone and simultaneously use an eSIM for your US local network needs, which simplifies management. Physical SIM cards are more suitable for older phones that don't support eSIM or for travelers who prefer the traditional method. Overall, eSIM generally offers a better travel experience in terms of convenience, flexibility, and avoiding the risk of losing a physical card.

When traveling in the US, there are various types of eSIM data plans available to meet different data usage needs. Common plans include pure data plans, offering a fixed amount of data for internet access; and data with voice and text plans, which include calls and texts within the US in addition to internet access. There are also flexible plans based on duration, such as 7-day, 15-day, or 30-day plans, allowing you to choose the most suitable option based on your trip length. Data allowances range from limited amounts (e.g., 5GB, 10GB) to high-capacity or so-called unlimited data plans. It's recommended to select based on your typical internet usage habits.

US eSIM plans offer a wide variety of data limit options, ranging from a few GB for light users to high-capacity plans. Many providers also offer so-called 'unlimited' plans, but these typically come with a 'Fair Usage Policy'. This means that after reaching a certain threshold of high-speed data usage (e.g., 20GB or 30GB), your internet speed may be throttled or reduced, rather than being truly unlimited high-speed data. When choosing an 'unlimited' plan, it's advisable to read the plan details carefully to understand the high-speed data cap and the speed after throttling to ensure it meets your expected usage.

When traveling in a major city like New York, the network reception with a US eSIM is generally very good and stable. New York's urban areas boast robust mobile communication infrastructure. Whether you're in Manhattan, Brooklyn, or other boroughs, you'll likely enjoy smooth internet service in most popular attractions, business districts, and residential areas. However, signal quality may still vary slightly when deep inside buildings, on subway cars, or in certain secluded spots. Overall, using an eSIM in New York for navigation, social media sharing, or video calls typically provides a satisfactory experience.

During US peak travel seasons, such as summer or major holidays, the demand for eSIM plans might increase. This usually doesn't lead to significant, drastic fluctuations in base plan prices, but it could affect plan availability or prompt providers to offer different types of limited-time promotional plans. It's recommended that travelers planning to visit the US during peak seasons should plan ahead and purchase their eSIM plans early to ensure they can select the most suitable option. Early purchase also gives you more time to understand the details and benefits of different plans.

In remote areas like California's national parks (e.g., Yosemite, Grand Canyon, or Death Valley), network reception quality, whether using an eSIM or a physical SIM card, may be less reliable than in urban areas. These regions have complex topography and sparse populations, resulting in limited cell tower coverage, which can lead to unstable signals or no signal at all. Travelers heading to these areas are advised to download offline maps, relevant information, and emergency contact details in advance. Signal may be slightly better around some national park visitor centers or specific facilities. If you plan to spend extended time in deep wilderness or sparsely populated areas, consider carrying a satellite communication device as a backup.

The major US carriers offering eSIM services include Verizon, AT&T, and T-Mobile. These three carriers have the most extensive network coverage and user base in the US. Verizon is known for its broad coverage and stability in rural areas; AT&T offers a good balance of coverage nationwide, performing particularly well in urban and major tourist areas; T-Mobile is actively developing its network in urban areas and 5G. Signal strength may vary by carrier in specific regions. Typically, mainstream eSIM products use one or more of these carriers as their underlying network provider to ensure wide coverage.

If you need to stay in the US for an extended business trip, the flexibility of eSIM plans will be a significant advantage. It's recommended to choose plans with longer validity periods (e.g., 30 days or more) that allow for easy top-ups or automatic renewal. Many providers offer high-data or 'unlimited' plans for users with high data consumption needs, which are often more suitable for long-term business purposes. Considering business needs, you might also opt for eSIM plans that include domestic calls and texts within the US. The nature of eSIM allows you to conveniently manage network plans for different countries or purposes, especially enhancing convenience for frequent business travelers.