AiraloMulti-Country Trip Planning
4.8 / 5Multi-Country Trip Planning · 200+ countries$4.50/GBAiralo leads for multi-country trips with regional bundles covering up to 130 de…
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Compare eSIM Plans for Vietnam (2026)
Quick answer
At $3.93/day, Nomad's 20GB covers 7 days in Vietnam for $27.49 on Vinaphone. Navigation, social media, and messaging fit comfortably within 20GB at that length. Unlimited data at $3.63/day suits month-long stays without tracking usage. 5G speeds on every tier.
Closest per-GB match
$1.37/GB
Across providers · Vinaphone
Covers heavy use
$4.43/day
Holafly
Fits privacy needs
Saily
NordVPN-backed
Covers light budgets
$0.80/GB
Nomad
Find your plan in minutes
Filter by how long you stay
The cheapest provider changes based on how long you stay. Work through these steps to land on the right plan without over-paying.
- 1 · Pick your trip lengthUse the 7 / 14 / 30 day tabs in the comparison table below. Each tab re-ranks providers by estimated cost for that duration, so the top row is the most affordable match for your travel window.
- 2 · Choose fixed or unlimitedShort stays (under 7 days) almost always favor a fixed-data plan. At 14+ days, unlimited daily rates can undercut fixed plans if you stream video. The table shows both side by side at your selected duration.
- 3 · Install before you flyPurchase on the provider's official site, scan the QR code at home on Wi-Fi, and add the eSIM as a second line. Your home SIM stays active throughout.
- 4 · Activate on arrival in VietnamSwitch your data line to the travel eSIM when you land. Most plans start counting data only from first connection, not from purchase, so you don't lose a day in transit.
Side-by-side pricing
Compare by trip length
Providers re-ranked by estimated trip cost each time you switch duration. Prices are starting rates verified June 2026.
Ranked by estimated cost for a 7-day trip to Vietnam. Fixed plans assume 1.5 GB/day usage.
| Provider | Type | Est. 7-day cost | Coverage | Network | Rating | Action |
|---|---|---|---|---|---|---|
| NomadLowest Per-GB for SE Asia Circuits | Fixed | $27.49 (20 GB) | 20 GB covers 7d at 1.5 GB/day | Vinaphone | 4.4/5 | See plan → |
| HolaflyFlat Daily Rate, No Data Tracking | Unlimited | $28.53 for 7d | Covers 7 days at $4.08/day | Viettel Mobile | 4.6/5 | See plan → |
| SailyBuilt-In VPN for Public WiFi | Fixed | from $2.99 | Global starting price | Vinaphone | 4.5/5 | See plan → |
| AiraloMulti-Country Trip Planning | Fixed | from $4.50 | Global starting price | Viettel Mobile | 4.8/5 | See plan → |
| HelloRoamBroad Coverage at Fair Pricing | Fixed | from $3.50 | Global starting price | Vinaphone | 4.4/5 | See plan → |
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All prices are per device in USD and were checked against official provider websites in June 2026.
The four providers
Providers matched to your stay
HolaflyFlat Daily Rate, No Data Tracking
4.6 / 5Flat Daily Rate, No Data Tracking · 160+ countries$3.90/dayHolafly charges a flat daily rate across 160+ destinations and suits long-haul t…
Full Holafly review→SailyBuilt-In VPN for Public WiFi
4.5 / 5Built-In VPN for Public WiFi · 200+ countries$2.99/GBSaily bundles a Nord Security VPN into every eSIM plan across 200+ destinations,…
Full Saily review→NomadLowest Per-GB for SE Asia Circuits
4.4 / 5Lowest Per-GB for SE Asia Circuits · 200+ countries$0.80/GBNomad drops to $0.80/GB on the Thailand 20 GB tier, with QR delivery under two m…
Full Nomad review→HelloRoamBroad Coverage at Fair Pricing
4.4 / 5Broad Coverage at Fair Pricing · 186+ countries$3.50/GBHelloRoam covers 186+ countries with local network routing, fixed and unlimited …
Full HelloRoam review→Vietnam eSIM overview
A weekend in Vietnam (3 days) needs about 5GB. A 5GB plan costs $11.09, which works out to $3.70/day. Extend to a 7-day trip and the 20GB plan at $27.49 ($3.93/day) becomes the better fit. Compare plans by your exact travel dates to avoid paying for unused data.
A 14-day stay calls for the 20GB plan at $27.49, or $1.96/day. Unlimited daily at $3.94/day on a 14-day commitment saves 11% off the single-day rate. The break-even between fixed and unlimited data hits at day 7.
For 30-day stays (digital nomads, study abroad), unlimited at $3.63/day on a monthly plan drops to $108.98/month. Fixed 20GB at $27.49 covers 13 days of moderate use.
Network coverage in Vietnam
Carrier choice does not change for short or long trips. All 5 providers route through Vinaphone and Viettel Mobile in Vietnam. A 3-day visitor and a 30-day resident connect to the same 5G towers.
Your provider picks the carrier automatically based on signal strength at your location. Download speeds stay consistent whether you are in the city center or near major tourist areas.
- Vinaphone: 5G coverage
- Viettel Mobile: 5G coverage
Which Vietnam plan should you pick?
3-day trip: $3.70/day. 7-day trip: $3.93/day. 14-day trip: $3.94/day. 30-day trip: $3.63/day. Per-day cost drops 2% from a 3-day to a 30-day commitment. Buying one plan that covers your full stay costs less per day than stacking shorter plans back to back.
Trip-planning context for Vietnam:
• Most visitors spend 8 days in Vietnam. Plan your data accordingly. • Peak season runs Oct-Apr. Vietnam's north is at its best from October through April, covering Hanoi and Sapa autumn colour and Ha Long Bay winter trips. • Time zone: ICT (UTC+7). • Main gateway: Tan Son Nhat (SGN) / Noi Bai (HAN). Airport SIM counters charge $5-15 for 6-20GB / 15-30 days, so an eSIM activated before departure skips the queue.
How to activate your Vietnam eSIM
Activation takes about five minutes and is best done at home before you fly. The four steps above apply to every provider in this comparison.
Planning your Vietnam trip data
Planning data for a Vietnam trip starts with your trip length. A 8-day average stay uses about 12GB at moderate pace. Viettel provides 5G coverage across tourist areas and city centers.
A 7-day trip fits the 20GB plan at $27.49.
Unlimited daily data at $4.43/day covers heavy users without tracking gigabytes. Compare fixed and unlimited options by trip length using the duration tabs above.
WiFi and cellular in Vietnam
Vietnam runs 5G cellular through Vinaphone and Viettel Mobile. Average download speeds reach 52 Mbps in urban areas. All five eSIM providers route through Viettel for consistent coverage across tourist corridors.
WiFi in Vietnam is available at most hotels and many cafes. Strong WiFi reduces daily eSIM use to about 1.0GB. Use WiFi for downloads and streaming, eSIM for navigation and messaging.
VPN access in Vietnam is restricted. Most standard VPN apps are blocked, but Facebook, Google Maps, and WhatsApp work without a VPN, covering the tools most travelers need day to day. Install any required VPN before departure.
Provider recommendations by trip type
Five providers cover Vietnam with different strengths. Budget travelers benefit from the lowest per-GB pricing starting at $3.49 for 1GB. Business travelers prioritize speed and unlimited plans at $4.43/day.
Digital nomads on 30-day stays need tethering support and large data allowances. Solo travelers should pick the provider with the widest destination coverage for flexible itinerary changes. Check provider scores on the comparison table above for Vietnam-specific ratings.
Seasonal travel and data planning
Peak travel season in Vietnam runs Oct-Apr. Vietnam's north is at its best from October through April, covering Hanoi and Sapa autumn colour and Ha Long Bay winter trips. The south around Ho Chi Minh City and the Mekong Delta is driest from November through April. A typical 8-day itinerary spans one northern and one central or southern destination. Network congestion during peak months may slow speeds in popular tourist areas. Buy a tier up from your calculated need during peak season.
During peak season consider unlimited data at $4.43/day to avoid running out during congested periods. Off-peak, the 20GB at $27.49 covers a standard 7-day trip.
Best eSIM for a Vietnam trip
Nomad's 1GB at $3.49 is the top pick for a Vietnam trip. Coverage runs on Viettel at 5G speeds. Unlimited daily data runs $4.43/day for heavy users. Unlike airport SIM counters, an eSIM requires no ID registration and activates instantly. That means connectivity the moment you clear customs.
eSIM or local SIM for Vietnam?
An eSIM is better than a local SIM for most Vietnam travelers. Vietnam requires passport registration for local SIM cards, which adds 15-30 minutes at the airport counter. Expect 10-15 min wait at airport SIM counters. Nomad's eSIM activates in under three minutes through the app, with no ID required. Local SIMs cost about $3-8 for 4-10GB / 30 days; eSIM plans start at $3.49. The eSIM connects to Viettel with 5G speeds, the same network a local SIM would use.
WiFi vs eSIM in Vietnam
An eSIM is more reliable and secure than WiFi for Vietnam travel. WiFi in Vietnam is available in most hotels and cafes, though speeds vary. Public WiFi networks carry security risks including data interception and fake hotspots. Nomad's eSIM on Viettel provides 5G private data that works everywhere you have cell coverage. eSIM plans start at $3.49 for 1GB. Use hotel WiFi for large downloads and streaming. Use eSIM data for navigation, messaging, and anything sensitive.
Vietnam eSIM FAQ
Frequently asked questions
Which eSIM plan fits a weekend trip to Vietnam?+
A 3-day trip to Vietnam on Vinaphone's 5G network needs 1.5GB for a light user (maps and messages only), so the 3GB at $7.49 is enough. A moderate user using social media and navigation needs 4 to 5GB, so go with the 5GB at $11.09. Heavy users streaming or video-calling need 10GB or more; buy the largest fixed plan available. For a typical weekend traveler, the 5GB at $11.09 fits most weekend travelers without overpaying for unused data.
How does eSIM cost change for 7 vs 14 vs 30 days in Vietnam?+
Per-day data cost in Vietnam drops as trip length increases. 7 days: 20GB plan at $27.49 total ($3.93/day). 14 days: 20GB plan at $27.49 total ($1.96/day). 30 days: unlimited at $3.63/day (18% off base rate). The 14-day bracket balances daily rate and flexibility for most travelers visiting Vietnam.
Can I top up or extend my eSIM mid-trip in Vietnam?+
Running low on data in Vietnam? All five providers offer in-app top-ups that activate in seconds. Airalo lets you buy additional data through the app in real time, and the top-up activates within 60 seconds. Holafly extends your unlimited plan by adding days from the app. Adding one day costs $4.43. Saily and Nomad both support fixed-data top-ups with no reinstallation. A top-up of 1GB costs $3.49, the same as buying a new plan. Buying a larger plan upfront is cheaper per GB than topping up, but the option is always available if you underestimate your usage.
Does eSIM work in Vietnam?+
Yes, eSIM coverage in Vietnam runs on Vinaphone and Viettel Mobile at 5G. Samsung Galaxy S22 and later, iPhone XS and later, and Google Pixel 4a and later are all compatible. Make sure your device is unlocked from its original carrier, then scan the QR code before you leave home.
Does unused Vietnam eSIM data roll over to the next trip?+
No. Travel eSIM data in Vietnam expires at the end of the plan validity window, and unused gigabytes do not carry over to future trips or additional purchases. Buy a plan that matches your actual trip length, not a larger buffer. A 7-day Vietnam plan like the 20GB tier at $27.49 expires after 7 days whether you use all 20GB or not. If your trip ends early, most providers (Airalo and Holafly) offer refund policies on unused plans within their support window.
How many days of data does a typical Vietnam trip use?+
A typical traveler in Vietnam burns through 1 to 2GB per day on maps, messaging, and social media. A 7-day trip needs 7 to 14GB; a 14-day trip needs 14 to 21GB. The 20GB plan at $27.49 fits a week-long trip.
Is Vietnam a good destination for eSIM coverage in Asia?+
Vietnam has 2 mobile networks (Vinaphone, Viettel Mobile) operating at 5G. Travel eSIM coverage is reliable in major cities and tourist areas. Rural coverage depends on the carrier your provider routes through. Check the network tab before choosing a plan for off-the-beaten-path itineraries.
Is a 7-day or 14-day Vietnam eSIM plan better value?+
Longer plans in Vietnam cost less per day than shorter ones. A 7-day stay fits the 20GB plan at $27.49 ($3.93/day). A 14-day stay fits the 20GB plan at $27.49 ($1.96/day). Buying one correctly-sized plan costs less than buying two smaller plans back-to-back.
What 5G coverage can I expect on a full Vietnam itinerary?+
Vietnam eSIMs run on Vinaphone and Viettel Mobile at 5G. Coverage holds reliably in tourist areas and city centers. For a full-country itinerary, check the detailed network map before finalizing your carrier preference.
Should I get a fixed data plan or unlimited for a Vietnam trip?+
Fixed data plans fit trips under 7 days in Vietnam. At 1.5GB/day the 20GB plan at $27.49 covers a 7-day trip with data to spare. Unlimited for 7 days costs $28.53, which is $1.04 more than the fixed alternative. Switch to unlimited if you stream video daily, work remotely, or use navigation continuously. A 14-day unlimited plan costs $55.20 ($3.94/day).