aloSIM 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: aloSIM ranked higher on 0, Kolet on 16; average gap 17%.
aloSIM
Ranked higher on 0 of the 16 trips compared★ 4.7 · 419 reviewsOfficial website › aloSIM (new tab)Kolet
Ranked higher on 16 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 GBKolet€9.99 against €11.00 with aloSIM (10% more)
- One week7 days, 5 GBKolet€9.99 against €11.00 with aloSIM (10% more)
- Unlimited7 days, unlimitedKolet€23.24 against €28.00 with aloSIM (20% more)
- Family of 44 travellers, 7 days, 5 GB eachKolet€39.96 against €44.00 with aloSIM (10% 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 | aloSIM | Kolet |
|---|---|---|
| 3 days | ||
| 1 GB, 3 days | €4.50that's €1.50/day13% more expensive | €3.99that's €1.33/dayRanked higher |
| 5 GB, 3 days | €11.00that's €3.67/day10% more expensive | €9.99that's €3.33/dayRanked higher |
| 10 GB, 3 days | €19.00that's €6.33/day27% more expensive | €14.99that's €5.00/dayRanked higher |
| Unlimited, 3 days | €12.00that's €4.00/day9% more expensive | €10.98that's €3.66/dayRanked higher |
| 7 days | ||
| 1 GB, 7 days | €4.50that's €0.64/day13% more expensive | €3.99that's €0.57/dayRanked higher |
| 5 GB, 7 days | €11.00that's €1.57/day10% more expensive | €9.99that's €1.43/dayRanked higher |
| 10 GB, 7 days | €19.00that's €2.71/day27% more expensive | €14.99that's €2.14/dayRanked higher |
| Unlimited, 7 days | €28.00that's €4.00/day20% more expensive | €23.24that's €3.32/dayRanked higher |
| 15 days | ||
| 1 GB, 15 days | €6.502 GBthat's €0.43/day9% more expensive per GB | €3.991 GBthat's €0.27/dayRanked higher |
| 5 GB, 15 days | €11.00that's €0.73/day10% more expensive | €9.99that's €0.67/dayRanked higher |
| 10 GB, 15 days | €19.00that's €1.27/day27% more expensive | €14.99that's €1.00/dayRanked higher |
| Unlimited, 15 days | €46.00that's €3.07/day9% more expensive | €42.30that's €2.82/dayRanked higher |
| 30 days | ||
| 1 GB, 30 days | €7.503 GBthat's €0.25/day25% more expensive per GB | €3.991 GBthat's €0.13/dayRanked higher |
| 5 GB, 30 days | €11.00that's €0.37/day10% more expensive | €9.99that's €0.33/dayRanked higher |
| 10 GB, 30 days | €19.00that's €0.63/day27% more expensive | €14.99that's €0.50/dayRanked higher |
| Unlimited, 30 days | €75.00that's €2.50/day20% more expensive | €62.70that's €2.09/dayRanked higher |
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.
- aloSIM★ 4.7 · 419 reviews
- Kolet★ 4.9 · 1,034 reviews
Going further
- Every brand we compare for Vietnam: the full ranking ›
- aloSIM or Kolet, all destinations ›
- Other head-to-heads for Vietnam: Sirocco vs aloSIM · Sirocco vs Kolet · Airalo vs aloSIM · Airalo vs Kolet · Holafly vs aloSIM · Holafly vs Kolet · Orange Travel vs aloSIM · Orange Travel vs Kolet · Instabridge vs aloSIM · Instabridge vs Kolet · Roamless vs aloSIM · Roamless vs Kolet · aloSIM vs Sim Local · aloSIM vs Eskimo · aloSIM vs eSIM.me · aloSIM vs Jetpac · 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