Roamless or Sim Local for Vietnam?
2 brands checked on 27/10/2026 · published by Mocom SAS (Sirocco)
Brands compared: Sirocco, Airalo, Holafly, Orange Travel, Instabridge, Roamless, aloSIM, Kolet, Sim Local, Eskimo, eSIM.me and Jetpac
As of 27/10/2026, out of 15 trips compared in Vietnam: Roamless ranked higher on 7, Sim Local on 8; average gap 28%.
Roamless
Ranked higher on 7 of the 15 trips compared★ 4.8 · 3,295 reviewsOfficial website › Roamless (new tab)Sim Local
Ranked higher on 8 of the 15 trips compared★ 4.8 · 420 reviewsOfficial website › Sim Local (new tab)The verdict, by type of trip
- Short stay3 days, 5 GBSim Local€9.75 against €9.79 with Roamless (< 1% more)
- One week7 days, 5 GBSim Local€9.75 against €9.79 with Roamless (< 1% more)
- Unlimited7 days, unlimitedRoamless€22.90 against €27.50 with Sim Local (20% more)
- Family of 44 travellers, 7 days, 5 GB eachSim Local€39.00 against €39.16 with Roamless (< 1% more)
A written rule, the same for every pair: for each type of trip, the better ranked of the two on price per GB (for unlimited, on price), at the prices we checked. Nothing is picked by hand; customer ratings don't count.
Prices, trip by trip
For each trip, each brand's cheapest plan that covers the duration and the data. In green, the better ranked of the two: price per GB, not counting GB beyond one and a half times the data requested (for unlimited, price). "+x%", how much more the other one costs, per GB when the data differs.
| Trip | Roamless | Sim Local |
|---|---|---|
| 3 days | ||
| 1 GB, 3 days | €3.53that's €1.18/dayRanked higher | €3.75that's €1.25/day6% more expensive |
| 5 GB, 3 days | €9.79that's €3.26/day< 1% more expensive | €9.75that's €3.25/dayRanked higher |
| 10 GB, 3 days | €16.04that's €5.35/day2% more expensive | €15.75that's €5.25/dayRanked higher |
| Unlimited, 3 days | €10.22that's €3.41/dayRanked higher | €27.50that's €9.17/day169% more expensive |
| 7 days | ||
| 1 GB, 7 days | €3.531 GBthat's €0.50/dayRanked higher | €7.003 GBthat's €1.00/day32% more expensive per GB |
| 5 GB, 7 days | €9.79that's €1.40/day< 1% more expensive | €9.75that's €1.39/dayRanked higher |
| 10 GB, 7 days | €16.04that's €2.29/day2% more expensive | €15.75that's €2.25/dayRanked higher |
| Unlimited, 7 days | €22.90that's €3.27/dayRanked higher | €27.50that's €3.93/day20% more expensive |
| 15 days | ||
| 1 GB, 15 days | €3.531 GBthat's €0.24/dayRanked higher | €9.755 GBthat's €0.65/day84% more expensive per GB |
| 5 GB, 15 days | €9.79that's €0.65/day< 1% more expensive | €9.75that's €0.65/dayRanked higher |
| 10 GB, 15 days | €16.04that's €1.07/day2% more expensive | €15.75that's €1.05/dayRanked higher |
| Unlimited, 15 days | €39.42that's €2.63/dayRanked higher | €42.75that's €2.85/day8% more expensive |
| 30 days | ||
| 1 GB, 30 days | €3.531 GBthat's €0.12/dayRanked higher | €9.755 GBthat's €0.33/day84% more expensive per GB |
| 5 GB, 30 days | €9.79that's €0.33/day< 1% more expensive | €9.75that's €0.33/dayRanked higher |
| 10 GB, 30 days | €16.04that's €0.53/day2% more expensive | €15.75that's €0.53/dayRanked higher |
| Unlimited, 30 days | €55.69that's €1.86/day | no unlimited plan long enough |
12 brands compared, not an exhaustive listWhy this ranking?
Compared on price per GB: for each trip, each brand's cheapest plan that covers the duration and the data, at the public price we checked, divided by its GB (at most one and a half times the data requested); for unlimited, the price. Average gap: the mean, over the trips compared, of the difference between the two brands relative to the better ranked one.
Not an exhaustive comparison: 12 brands out of the dozens that sell eSIMs. The list of brands compared is in our Methodology.
eSIMeter is published by Mocom SAS, which sells Sirocco: the site is funded by those sales. No other brand pays us.
Customer ratings
App Store United Kingdom, checked on 27/10/2026. Ratings don't count in the verdict.
- Roamless★ 4.8 · 3,295 reviews
- Sim Local★ 4.8 · 420 reviews
Going further
- Every brand we compare for Vietnam: the full ranking ›
- Roamless or Sim Local, all destinations ›
- Other head-to-heads for Vietnam: Sirocco vs Roamless · Sirocco vs Sim Local · Airalo vs Roamless · Airalo vs Sim Local · Holafly vs Roamless · Orange Travel vs Roamless · Orange Travel vs Sim Local · Instabridge vs Roamless · Instabridge vs Sim Local · Roamless vs aloSIM · Roamless vs Kolet · Roamless vs Eskimo · Roamless vs eSIM.me · Roamless vs Jetpac · aloSIM vs Sim Local · Kolet vs Sim Local · Sim Local vs Eskimo · Sim Local vs eSIM.me · Sim Local vs Jetpac
A page per destination is only published if both brands have a price for at least 4 of the 16 trips, and if the better ranked one changes with the trip or the average gap reaches 5%. Otherwise they are still compared in the destination's ranking. Methodology