5 Best Thai Sim Card 2025 in the United States

The Asia SIM Card 30Days 5GB is a great option for travelers needing reliable data while visiting multiple countries in Asia. It offers good coverage across 14 countries including Japan, Korea, and Thailand, making it versatile for those on the go. With a prepaid plan of 5GB high-speed 4G LTE data, users can stay connected for a month without worrying about additional charges.

The activation process is straightforward, requiring setup on the Mewfi website a couple of days before your trip, and enabling roaming once you arrive at your destination. This makes it convenient for travelers who want hassle-free connectivity. However, it’s important to note that the SIM card does not support phone calls or SMS, which might be a limitation for some users. Also, the SIM is not compatible with the Google Pixel 8 series, so users with these devices will need to find another option.

On the plus side, the SIM card supports access to popular apps like Google, Instagram, and Twitter, even in regions with internet restrictions, which can be a significant advantage. The 24/7 WhatsApp customer support is a helpful feature, ensuring users can get assistance whenever needed. Travelers with unlocked smartphones looking for a simple, effective way to stay online in Asia will find this product ideal.

The AIS Thailand Prepaid SIM Card offers a convenient solution for travelers needing reliable data and communication in Thailand. With 15GB of high-speed 4G LTE data usable over 7 days and unlimited data at a reduced speed of 1Mbps afterward, it ensures you stay connected without worrying about data limits. The inclusion of 30 minutes of local call time and unlimited in-network calls and SMS makes this SIM card a comprehensive package for both internet and voice communication needs.

Users can easily access popular apps like Google, Instagram, Twitter, and WhatsApp, maintaining their social media and communication channels without hassle. The SIM card is versatile with its 3-in-1 design, fitting Standard, Micro, and Nano slots, and offers a simple plug-and-play setup without any activation process, making it extremely user-friendly. Additionally, the 24/7 WhatsApp support ensures that customer service is always available if needed.

However, there are some points to consider. The validity period is limited to 7 days, which may not be suitable for longer stays. Also, while data plans are generous, heavy users may find the reduced speed after the initial 15GB limiting. Roaming charges are not explicitly mentioned, so it's unclear how the SIM card performs outside Thailand. This SIM card is a strong choice for short-term visitors to Thailand looking for easy and immediate connectivity, provided the short validity and data speed reduction are acceptable.

The AIS Thailand Traveller SIM card offers 30 GB of high-speed 5G internet for a duration of 15 days, making it an excellent choice for travelers who need reliable internet access during their stay in Thailand. Once the initial 30 GB is used up, the internet speed drops to 384 kbps, which is considerably slower but allows for continued connectivity.

This SIM card is specifically designed for use in Thailand, as it does not provide roaming services outside the country. Therefore, it is best suited for visitors staying within Thailand for the validity period of 15 days. The activation process is straightforward: simply insert the SIM, call a designated number, and start using the service within 30 seconds. Additionally, the SIM card comes preloaded with 15 THB credit, which can be used for local calls, international calls, or purchasing additional data.

The SIM card also offers unlimited calls to AIS mobile numbers, which is a valuable feature for users who frequently need to stay in touch with local contacts. Another highlight is the unlimited data usage on seven popular social apps for 8 days, catering to social media enthusiasts. It's important to note that this SIM card requires an unlocked phone and is not compatible with eSIM-only devices. The AIS Thailand Traveller SIM card is a convenient and cost-effective option for tourists looking for extensive data coverage and easy activation in Thailand, particularly if they are heavy social media users.