Sirocco or Kolet 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 16 trips compared in Vietnam: Sirocco ranked higher on 11, Kolet on 5; average gap 4%.
Kolet
Ranked higher on 5 of the 16 trips compared★ 4.9 · 1,034 reviewsBadges for the 7 days, 5 GB trip, worked out among the 12 brands we compare, as on the destination page.
The verdict, by type of trip
- Short stay3 days, 5 GBSirocco Our eSIM€9.00 against €9.99 with Kolet (11% more)
- One week7 days, 5 GBSirocco Our eSIM€9.00 against €9.99 with Kolet (11% more)
- Unlimited7 days, unlimitedKolet€23.24 against €23.70 with Sirocco (2% more)
- Family of 44 travellers, 7 days, 5 GB eachSirocco Our eSIM€32.40 against €39.96 with Kolet (23% 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 | Sirocco Our eSIM | Kolet |
|---|---|---|
| 3 days | ||
| 1 GB, 3 days | €3.80that's €1.27/dayRanked higher | €3.99that's €1.33/day5% more expensive |
| 5 GB, 3 days | €9.00that's €3.00/dayRanked higher | €9.99that's €3.33/day11% more expensive |
| 10 GB, 3 days | €15.20that's €5.07/day1% more expensive | €14.99that's €5.00/dayRanked higher |
| Unlimited, 3 days | €10.40that's €3.47/dayRanked higher | €10.98that's €3.66/day6% more expensive |
| 7 days | ||
| 1 GB, 7 days | €3.80that's €0.54/dayRanked higher | €3.99that's €0.57/day5% more expensive |
| 5 GB, 7 days | €9.00that's €1.29/dayRanked higher | €9.99that's €1.43/day11% more expensive |
| 10 GB, 7 days | €15.20that's €2.17/day1% more expensive | €14.99that's €2.14/dayRanked higher |
| Unlimited, 7 days | €23.70that's €3.39/day2% more expensive | €23.24that's €3.32/dayRanked higher |
| 15 days | ||
| 1 GB, 15 days | €3.90that's €0.26/dayRanked higher | €3.99that's €0.27/day2% more expensive |
| 5 GB, 15 days | €9.50that's €0.63/dayRanked higher | €9.99that's €0.67/day5% more expensive |
| 10 GB, 15 days | €15.60that's €1.04/day4% more expensive | €14.99that's €1.00/dayRanked higher |
| Unlimited, 15 days | €42.20that's €2.81/dayRanked higher | €42.30that's €2.82/day< 1% more expensive |
| 30 days | ||
| 1 GB, 30 days | €3.90that's €0.13/dayRanked higher | €3.99that's €0.13/day2% more expensive |
| 5 GB, 30 days | €9.90that's €0.33/dayRanked higher | €9.99that's €0.33/day1% more expensive |
| 10 GB, 30 days | €16.10that's €0.54/day7% more expensive | €14.99that's €0.50/dayRanked higher |
| Unlimited, 30 days | €60.30that's €2.01/dayRanked higher | €62.70that's €2.09/day4% more expensive |
Sirocco is ranked lower on 5 trips: 3 days, 10 GB (€15.20 against €14.99); 7 days, 10 GB (€15.20 against €14.99); 7 days, unlimited (€23.70 against €23.24); 15 days, 10 GB (€15.60 against €14.99); 30 days, 10 GB (€16.10 against €14.99).
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.
- Sirocco Our eSIMno rating
- Kolet★ 4.9 · 1,034 reviews
Going further
- Every brand we compare for Vietnam: the full ranking ›
- Sirocco or Kolet, all destinations ›
- Other head-to-heads for Vietnam: Sirocco vs Airalo · Sirocco vs Holafly · Sirocco vs Orange Travel · Sirocco vs Instabridge · Sirocco vs Roamless · Sirocco vs aloSIM · Sirocco vs Sim Local · Sirocco vs Eskimo · Sirocco vs eSIM.me · Sirocco vs Jetpac · Airalo vs Kolet · Holafly vs Kolet · Orange Travel vs Kolet · Instabridge vs Kolet · Roamless vs Kolet · aloSIM vs Kolet · Kolet vs Sim Local · Kolet vs Eskimo · Kolet vs eSIM.me · Kolet 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