Roamless or Kolet for the United Kingdom?
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 the United Kingdom: Roamless ranked higher on 16, Kolet on 0; average gap 6%.
Roamless
Ranked higher on 16 of the 16 trips compared★ 4.8 · 3,295 reviewsOfficial website › Roamless (new tab)Kolet
Ranked higher on 0 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 GBRoamless€11.57 against €11.99 with Kolet (4% more)
- One week7 days, 5 GBRoamless€11.57 against €11.99 with Kolet (4% more)
- Unlimited7 days, unlimitedRoamless€22.90 against €23.24 with Kolet (1% more)
- Family of 44 travellers, 7 days, 5 GB eachRoamless€46.28 against €47.96 with Kolet (4% 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 | Kolet |
|---|---|---|
| 3 days | ||
| 1 GB, 3 days | €3.53that's €1.18/dayRanked higher | €3.99that's €1.33/day13% more expensive |
| 5 GB, 3 days | €11.57that's €3.86/dayRanked higher | €11.99that's €4.00/day4% more expensive |
| 10 GB, 3 days | €16.94that's €5.65/dayRanked higher | €16.99that's €5.66/day< 1% more expensive |
| Unlimited, 3 days | €10.22that's €3.41/dayRanked higher | €10.98that's €3.66/day7% more expensive |
| 7 days | ||
| 1 GB, 7 days | €3.53that's €0.50/dayRanked higher | €3.99that's €0.57/day13% more expensive |
| 5 GB, 7 days | €11.57that's €1.65/dayRanked higher | €11.99that's €1.71/day4% more expensive |
| 10 GB, 7 days | €16.94that's €2.42/dayRanked higher | €16.99that's €2.43/day< 1% more expensive |
| Unlimited, 7 days | €22.90that's €3.27/dayRanked higher | €23.24that's €3.32/day1% more expensive |
| 15 days | ||
| 1 GB, 15 days | €3.53that's €0.24/dayRanked higher | €3.99that's €0.27/day13% more expensive |
| 5 GB, 15 days | €11.57that's €0.77/dayRanked higher | €11.99that's €0.80/day4% more expensive |
| 10 GB, 15 days | €16.94that's €1.13/dayRanked higher | €16.99that's €1.13/day< 1% more expensive |
| Unlimited, 15 days | €39.42that's €2.63/dayRanked higher | €42.30that's €2.82/day7% more expensive |
| 30 days | ||
| 1 GB, 30 days | €3.53that's €0.12/dayRanked higher | €3.99that's €0.13/day13% more expensive |
| 5 GB, 30 days | €11.57that's €0.39/dayRanked higher | €11.99that's €0.40/day4% more expensive |
| 10 GB, 30 days | €16.94that's €0.56/dayRanked higher | €16.99that's €0.57/day< 1% more expensive |
| Unlimited, 30 days | €55.69that's €1.86/dayRanked higher | €62.70that's €2.09/day13% more expensive |
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
- Kolet★ 4.9 · 1,034 reviews
Going further
- Every brand we compare for the United Kingdom: the full ranking ›
- Roamless or Kolet, all destinations ›
- Other head-to-heads for the United Kingdom: Sirocco vs Roamless · Sirocco vs Kolet · Airalo vs Roamless · Airalo vs Kolet · Holafly vs Roamless · Holafly vs Kolet · Orange Travel vs Roamless · Orange Travel vs Kolet · Instabridge vs Roamless · Instabridge vs Kolet · Roamless vs aloSIM · Roamless vs Sim Local · Roamless vs Eskimo · Roamless vs eSIM.me · Roamless vs Jetpac · 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