Roamless or Sim Local 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 12 trips compared in the United Kingdom: Roamless ranked higher on 12, Sim Local on 0; average gap 143%.
Roamless
Ranked higher on 12 of the 12 trips compared★ 4.8 · 3,295 reviewsOfficial website › Roamless (new tab)Sim Local
Ranked higher on 0 of the 12 trips compared★ 4.8 · 420 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 for 5 GB against €25.50 for 20 GB with Sim Local (47% more per GB)
- One week7 days, 5 GBRoamless€11.57 for 5 GB against €25.50 for 20 GB with Sim Local (47% more per GB)
- Unlimited7 days, unlimitedRoamlessThe only one offering this trip (€22.90); Sim Local: no unlimited plan long enough
- Family of 44 travellers, 7 days, 5 GB eachRoamless€46.28 for 5 GB each against €102.00 for 20 GB each with Sim Local (47% more per GB)
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 | €3.531 GBthat's €1.18/dayRanked higher | €25.5020 GBthat's €8.50/day382% more expensive per GB |
| 5 GB, 3 days | €11.575 GBthat's €3.86/dayRanked higher | €25.5020 GBthat's €8.50/day47% more expensive per GB |
| 10 GB, 3 days | €16.9410 GBthat's €5.65/dayRanked higher | €25.5020 GBthat's €8.50/day< 1% more expensive per GB |
| Unlimited, 3 days | €10.22that's €3.41/day | no unlimited plan long enough |
| 7 days | ||
| 1 GB, 7 days | €3.531 GBthat's €0.50/dayRanked higher | €25.5020 GBthat's €3.64/day382% more expensive per GB |
| 5 GB, 7 days | €11.575 GBthat's €1.65/dayRanked higher | €25.5020 GBthat's €3.64/day47% more expensive per GB |
| 10 GB, 7 days | €16.9410 GBthat's €2.42/dayRanked higher | €25.5020 GBthat's €3.64/day< 1% more expensive per GB |
| Unlimited, 7 days | €22.90that's €3.27/day | no unlimited plan long enough |
| 15 days | ||
| 1 GB, 15 days | €3.531 GBthat's €0.24/dayRanked higher | €25.5020 GBthat's €1.70/day382% more expensive per GB |
| 5 GB, 15 days | €11.575 GBthat's €0.77/dayRanked higher | €25.5020 GBthat's €1.70/day47% more expensive per GB |
| 10 GB, 15 days | €16.9410 GBthat's €1.13/dayRanked higher | €25.5020 GBthat's €1.70/day< 1% more expensive per GB |
| Unlimited, 15 days | €39.42that's €2.63/day | no unlimited plan long enough |
| 30 days | ||
| 1 GB, 30 days | €3.531 GBthat's €0.12/dayRanked higher | €25.5020 GBthat's €0.85/day382% more expensive per GB |
| 5 GB, 30 days | €11.575 GBthat's €0.39/dayRanked higher | €25.5020 GBthat's €0.85/day47% more expensive per GB |
| 10 GB, 30 days | €16.9410 GBthat's €0.56/dayRanked higher | €25.5020 GBthat's €0.85/day< 1% more expensive per GB |
| 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 the United Kingdom: the full ranking ›
- Roamless or Sim Local, all destinations ›
- Other head-to-heads for the United Kingdom: 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