In short
Our picks. Tap to see today's price at Vacay
- Light use, lowest priceBest Vietnam 5GB, ฿99 (≈ $3.27) for 5 daysBuy at Vacay →
- Lots of data for the least moneyWintel, 6GB a day at full speed and then 5 Mbps, ฿159 (≈ $5.25) for 5 daysBuy at Vacay →
- Mountains and the far north (Sapa, Ha Giang)Viettel, Vietnam's biggest network, 5GB a day, ฿179 (≈ $5.91) for 5 daysBuy at Vacay →
- Truly unlimited at full speedBest Vietnam Unlimited full speed, ฿379 (≈ $12.51) for 5 daysBuy at Vacay →
New Vacay customers: 10% off
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Prices are from Vacay, the eSIM store GoeSIM partners with, on 21 Oct 2026, in baht. Check the current price before you buy.
Three networks
| Network | Full speed | After that |
|---|---|---|
| Wintel (4G) | 6GB a day | 5 Mbps until the next day |
| Viettel (5G) | 5GB a day | Stops until the next day |
| Vinaphone | By plan | By plan (see below) |
Vinaphone is the network of the Best Vietnam plans: by the GB, unlimited and daily.
In Da Nang, Hoi An, Hanoi and Ho Chi Minh City every network works well. Viettel is known for reaching furthest into the countryside and mountains.
Heavy use: unlimited or several GB a day
| Plan | 3 days | 5 days | 7 days | 10 days |
|---|---|---|---|---|
| Wintel Unlimited | ฿139≈ $4.59 | ฿159≈ $5.25 | ฿179≈ $5.91 | ฿209≈ $6.90 |
| Viettel 5GB a day | — | ฿179≈ $5.91 | ฿199≈ $6.57 | ฿229≈ $7.56 |
| Best Vietnam Unlimited 10 Mbps | ฿179≈ $5.91 | ฿279≈ $9.21 | ฿379≈ $12.51 | ฿509≈ $16.80 |
| Best Vietnam Unlimited full speed | ฿239≈ $7.89 | ฿379≈ $12.51 | ฿519≈ $17.13 | ฿709≈ $23.40 |
Wintel is by far the cheapest. Five days gives up to 30GB at full speed (6GB a day), and past that it still runs at 5 Mbps, enough for maps and social media. It even costs less than Best Vietnam 10GB for 5 days (฿169 (≈ $5.58)).
Viettel gives 5GB a day, but stops when you reach it until the next day. It starts at 5 days. Its advantage is coverage.
Best Vietnam Unlimited full speed: until 31 Dec 2026 it runs at full speed for the whole plan at the same price. After that it gives 5GB a day at full speed, then 10 Mbps. It suits people working online or sharing a hotspot heavily.
By the GB
Best Vietnam (Vinaphone) runs at full speed until the data is used up, then drops to 128 kbps. You can't top it up, so if you're unsure, buy one size up.
| Data | 3 days | 5 days | 7 days | 10 days |
|---|---|---|---|---|
| 3GB | ฿59≈ $1.95 | ฿69≈ $2.28 | ฿79≈ $2.61 | ฿89≈ $2.94 |
| 5GB | ฿89≈ $2.94 | ฿99≈ $3.27 | ฿109≈ $3.60 | ฿119≈ $3.93 |
| 10GB | ฿159≈ $5.25 | ฿169≈ $5.58 | ฿179≈ $5.91 | ฿189≈ $6.24 |
| 20GB | ฿309≈ $10.20 | ฿339≈ $11.19 | ฿369≈ $12.18 | ฿389≈ $12.84 |
Up to 5GB, by the GB is cheapest. From 10GB up, Wintel costs about the same or less and gives far more data: 10GB for 5 days is ฿169 (≈ $5.58), Wintel for 5 days is ฿159 (≈ $5.25).
Daily plans
Best Vietnam Daily resets every day at 23:00 and drops to 128 kbps once the day's allowance is used.
| Per day | 3 days | 5 days | 7 days |
|---|---|---|---|
| 500MB | ฿39≈ $1.29 | ฿59≈ $1.95 | ฿89≈ $2.94 |
| 1GB | ฿59≈ $1.95 | ฿99≈ $3.27 | ฿139≈ $4.59 |
| 2GB | ฿109≈ $3.60 | ฿179≈ $5.91 | ฿249≈ $8.22 |
From 2GB a day up, daily costs more than Wintel's 6GB a day (2GB a day for 5 days is ฿179 (≈ $5.91), Wintel is ฿159 (≈ $5.25)). Daily only makes sense at 500MB a day for very short trips.
Which one for your route
Da Nang, Hoi An, Ba Na Hills, 3–5 days
For maps, chat and social media, Best Vietnam 5GB (฿99 (≈ $3.27) for 5 days) is enough. If you post stories and video all day, take Wintel (฿159 (≈ $5.25) for 5 days). Not sure? Try the data calculator.
Hanoi, Ha Long Bay or Ho Chi Minh City
Any network is fine in the cities; choose by how much data you use. On an overnight Ha Long Bay cruise, signal out in the bay can be weaker than on shore on every network.
Sapa, Ha Giang or a road trip
Viettel, the network that reaches the most remote areas. 5GB a day covers a full day of navigation.
Several countries in one trip
Going on to China, Hong Kong, Japan or elsewhere in Asia? Compare one eSIM for all of them on Asia eSIMs.
Before you buy
See every length and buy on the Vietnam eSIM comparison.