Scotland, United Kingdom

Scotland is two very different places when it comes to mobile data. The cities are as well connected as anywhere in the UK, while the Highlands and islands still have some of the largest areas without signal in Britain. Your idealesim UK eSIM covers all of Scotland on the same plan as the rest of the UK, so the question is less which plan to buy and more how to plan around the gaps.

Mobile coverage in Scotland

Edinburgh, Glasgow, Aberdeen, Dundee and Inverness all have reliable 4G, with 5G across their centres. Scotland uses the same four networks as the rest of the UK, EE, O2, Vodafone and Three, and since Vodafone and Three merged, customers of either can use the stronger of the two.

Beyond the Central Belt, coverage becomes patchy fast. Government-funded masts have been going up across the Highlands for several years, yet many glens, single-track roads and mountain areas still have no signal from any operator. On the islands, signal is usually decent around the main villages and harbours, such as Portree on the Isle of Skye, and fades quickly as you head into the hills or along remote coast. The Outer Hebrides, Orkney and Shetland are similar: fine in the towns, unreliable in between. A useful rule of thumb is that signal is better on high ground and near settlements, and worst in the bottom of a valley.

Getting around Scotland

ScotRail runs the trains, and the famous scenic lines, such as the West Highland Line to Mallaig and the line to Kyle of Lochalsh, cross long stretches with little or no signal, so load your tickets and anything you want to read before you board. The Caledonian Sleeper runs overnight from London to Edinburgh, Glasgow, Inverness, Aberdeen and Fort William. In Edinburgh, trams and buses accept contactless, and Glasgow has its own Subway loop under the city centre.

Most island trips involve a CalMac ferry, and sailings can be changed or cancelled at short notice in bad weather, so keep an eye on the service status on your phone. Out at sea your signal will come and go; on some crossings phones can also connect to a ship's own maritime network, which is charged separately and at much higher rates, so it is worth switching data off for the crossing. If you are driving a route such as the North Coast 500, expect long sections without signal, and plan fuel stops and accommodation while you are still in range.

Where you'll use data most in Scotland

Navigation and ferry updates will take up much of your data outside the cities, together with the weather: conditions in the mountains change quickly, and a mountain forecast is worth checking before any hill walk. In the Highlands, accommodation and restaurants can be sparse and fill up early in summer, so you will often be booking tonight's bed or a table on the go. In August, the Edinburgh festivals fill the Old Town with visitors buying tickets on their phones, and the crowds can slow data down around the Royal Mile. Distillery tours, castle tickets and popular walks such as the Old Man of Storr increasingly need booking or paid parking through an app.

Tips for staying connected in Scotland

• Download offline maps of the whole area before you leave a town, not when you notice the signal has gone.
• Tell someone your route before walking in the hills, and do not count on having signal on the summit or in the glens.
• In an emergency dial 999 or 112; in the mountains, ask for the police and then mountain rescue.
• Cold weather and constant searching for signal both drain batteries, so carry a power bank.
• Switch data off on long ferry crossings to avoid connecting to a ship's maritime network.
• The same plan works in England, Wales and Northern Ireland. Compare all United Kingdom eSIM plans, or see our Europe eSIMs if Scotland is one stop on a longer trip.