30 Days Unlimited 4G/5G Data Vietnam eSIM and Physical Card
30 days of unlimited 4G/5G data in Vietnam via eSIM or physical SIM, with QR activation and hotspot support. Compare live prices and coupons.
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What it is
This 30-day Vietnam data SIM gives you unlimited internet access on the 4G LTE and 5G networks of Vietnam's leading mobile operators. The eSIM option lets you download and activate your connection via QR code before departure — no physical card, no airport queue. If your phone doesn't support eSIM, the same plan is often available as a standard nano/micro physical SIM card delivered or picked up on arrival. Data is marketed as unlimited, but most plans apply a Fair Usage Policy (FUP): you receive a set amount of high-speed data each day (commonly 3 GB to 15 GB depending on the plan tier), after which speeds are throttled — typically to 128–256 kbps — until the next daily reset. Tethering and mobile hotspot are generally supported, though some providers cap hotspot usage separately. Coverage is strongest in Hanoi, Ho Chi Minh City, Da Nang, Hue, Hoi An, Nha Trang, and Phu Quoc; rural and mountainous areas rely on 4G and may see reduced speeds.
Highlights
- Dual-format flexibility: choose eSIM (QR code, zero physical card needed) or physical SIM card — same 30-day unlimited plan, pick what fits your device
- 4G/5G network coverage: runs on major Vietnamese carriers (Viettel, Vinaphone, or Mobifone) with near-nationwide 4G and expanding 5G in Hanoi, Ho Chi Minh City, and Da Nang
- High-speed daily data allowance: typically 3–15 GB of full-speed 4G/5G per day before Fair Usage Policy throttling kicks in — enough for maps, streaming, and video calls
- Mobile hotspot / tethering supported: share your connection with a laptop or tablet, ideal for remote workers and travel groups (hotspot may have a separate daily cap on some providers)
- Instant eSIM activation via QR code: scan the QR, install the profile in Settings, and your connection is live before you even board — no waiting at the airport SIM counter
- 30-day validity: covers extended trips, multi-city itineraries from north to south, or a month-long stay with no need to top up or renew
Good to know
- eSIM compatibility required for eSIM option: your phone must support eSIM (iPhone XS and later, Samsung Galaxy S20+, Google Pixel 3a+, and most flagship Android phones from 2020 onward); if unsure, check Settings > General > About on iPhone or Settings > Connections > SIM Manager on Android
- Install before you land: activate the eSIM at home on Wi-Fi — the profile installs in minutes via QR code scan, so you have data the moment you land in Vietnam
Frequently asked
- Do I need an eSIM-compatible phone to use this plan?
- Yes — to use the eSIM option you need a phone that supports eSIM, such as iPhone XS or later, Samsung Galaxy S20 or later, or Google Pixel 3a and newer. If your phone only takes a physical SIM, select the physical SIM card option when purchasing; the same 30-day unlimited plan is typically available in both formats.
- Is the data truly unlimited, or is there a speed cap?
- Most 30-day 'unlimited' Vietnam SIM plans apply a Fair Usage Policy (FUP). You receive a set amount of high-speed 4G/5G data each day — commonly between 3 GB and 15 GB depending on the provider and plan tier — after which speeds are usually throttled to around 128–256 kbps until the daily reset at midnight (Vietnam time, UTC+7). Basic browsing, messaging, and navigation still work at throttled speeds.
- Can I use the SIM as a mobile hotspot to share data with other devices?
- Yes, tethering and mobile hotspot are generally supported on Vietnam travel SIM plans. Some providers include hotspot within the main daily data allowance, while others apply a separate hotspot cap. Check the specific plan details before purchasing if hotspot usage is a priority — this is especially useful for sharing with a laptop or other devices in your travel group.