eSIMratNetwork coverage
by RonyNetwork coverage is the area where an operator actually provides service, and in which technology (4G, 5G). It comes as coverage maps published by operators: useful documents, but optimistic by construction, computed outdoors and by simulation. Lived coverage, indoors, in the countryside or in a basement, is always more modest than the map.
Why it matters when travelling
For a travel eSIM, the coverage that counts is that of the local host operator, not of the provider selling you the plan. Two eSIMs at the same price can connect to very different local networks: the country's leader, or a challenger with poor rural coverage. That is THE hidden criterion of cheap plans.
The right reflex before buying: identify the plan's host network (good providers display it), then check its local reputation through independent or crowdsourced maps rather than the operator's marketing map. Many countries have a regulator publishing its own maps.
The misconception
“99% coverage, so I will have signal everywhere.”
Operators' “99%” is almost always 99% of the POPULATION covered, not of the territory: inhabited areas have signal, the roads between them not necessarily. And the figure is measured outdoors: inside an old building, reality can be quite different.
Reading a coverage map: the real questions
| What the map says | What to understand |
|---|---|
| % of coverage | Population or territory? The first inflates the number |
| 4G/5G coloured zone | Simulated outdoor measurement, indoors gets less |
| “5G available” | Sometimes a few districts only, check the granularity |
| Operator's own map | A marketing document: cross-check with independent maps |
What it changes when you compare
esimrat compares prices per GB with the host network known: when two plans are close on price, the local network they connect to breaks the tie. A plan 10% pricier on the country's best network is often the real bargain, especially outside the capitals.
Compare eSIM plans by destination
The rat's tip: Is your route leaving the big cities? Search for “[country] coverage map” with the name of the local regulator, or a crowdsourced map, and look at YOUR exact stops. Ten minutes worth more than all the “99%” in the world.
See also
Frequently asked questions
How do I check coverage before a trip?
Identify the host network of your eSIM plan (the plan page or the provider's support), then check that network on an independent map of the country: the local regulator's map where one exists, or crowdsourced maps fed by real user measurements.
Why do I have no signal when the map says I should?
Because the map simulates outdoor reception: thick walls, basements, deep valleys and metal buildings degrade the signal badly. Try near a window, higher up, or switch on wifi calling if your line allows it.
Does 5G matter for a travel eSIM?
Rarely decisive: good 4G is enough for every travel use, GPS, streaming and video calls included. Solid 4G on the country's best network beats theoretical 5G available in three districts of the capital.