Frequently asked questions
Everything you need to know about our Vietnam local eSIM. Contact our 24/7 support team.
Local eSIM vs Roaming
A local eSIM connects directly to Vietnamese carriers (Viettel, Vinaphone, Mobifone) just like a local prepaid SIM — giving you full local network speeds of 60-120 Mbps. A roaming eSIM routes your data through an international gateway, which typically results in slower speeds (5-15 Mbps) and higher latency. Our eSIMs are 100% local, not roaming.
Because our eSIMs register directly on Vietnamese mobile networks with a local IP address, there is no international data relay. Your connection is identical to what Vietnamese residents use daily — no throttling, no gateway bottleneck, no extra hops.
Our eSIMs connect to Mobifone, one of Vietnam's top 3 carriers, with nationwide 4G LTE and 5G coverage across all 63 provinces.
Most modern smartphones support eSIM: iPhone XS and later, Samsung Galaxy S20 and later, Google Pixel 3 and later, Huawei P40 and later, and many more.
Device Compatibility
After purchase, you receive a QR code by email within seconds. On your phone, go to Settings, Mobile Data, Add eSIM, Scan QR Code. The entire process takes under 2 minutes.
Delivery is instant — the QR code arrives in your email within 30 seconds of completing payment. No physical shipping, no waiting at airport counters.
Yes. Your physical SIM card stays active for calls and SMS on your home number, while the eSIM handles mobile data in Vietnam.
Setup & Activation
Our local eSIM provides coverage across all 63 provinces of Vietnam — from downtown Hanoi and Ho Chi Minh City to beaches in Phu Quoc, mountains in Sapa, and rural areas in the Mekong Delta.
Yes. You can enable hotspot on your phone and share your eSIM data connection with laptops, tablets, or travel companions. There are no restrictions on tethering.
If you use all your data before the plan expires, you can simply purchase another eSIM plan from our website and install a new QR code — it takes just 2 minutes.
Speed, Coverage & Data
No. Our local eSIM plans deliver full-speed 4G/5G data for the entire allocated amount. Once your data is consumed, the plan simply stops — no surprise slow-speed charges.
Our local eSIM plans start from just $3.99 for 7 days — compared to $10-15 per day for international roaming. A 2-week trip could cost you $5-8 with us versus $140-210 with roaming.
No. eSIM and physical SIM work simultaneously using your phone's dual-SIM capability. Keep your physical SIM for home calls/SMS and set the eSIM as the data line.
Absolutely. With local network speeds of 60-120 Mbps, our eSIM handles HD video calls, streaming, social media, maps, and any data-heavy app without buffering.
Our 24/7 customer support team is available via live chat, email (support@esimdatatravel.com), and WhatsApp (+84 838 648 001). Most issues are resolved within 5 minutes.