英国的手机、SIM 卡、Wi-Fi 与插头

您的选择

1. 保留本国SIM卡并使用漫游。最简单，但费用完全取决于您的本国套餐。
2. 购买英国SIM卡。英国运营商的实体SIM卡可提供英国号码和英国数据套餐。需要使用已解锁的手机。
3. 安装eSIM。一种数字SIM卡，扫描二维码即可添加，无需更换实体卡。需要支持eSIM且已解锁的手机。
4. 只依赖 Wi-Fi。在酒店和咖啡馆查地图、发消息没问题，但在路上帮助不大。

哪个最便宜，取决于您停留多久、用多少流量，以及您本国运营商的收费，而这些价格会变动。因此我们不做任何比较。更简短的说明见eSIM与插头和首次到访指南。

使用您本国的套餐漫游

出发前，请向您的本国运营商确认三件事：您的套餐是否包含在英国漫游，如不包含费用是多少，以及每日或每月的费用是否设有上限。如不想误用，请关闭数据漫游，并使用 Wi-Fi 以免账单超出预期。费用由您自己的运营商而非英国网络运营商制定，因此任何英国网站都无法给出具体金额。

英国 SIM 卡或 eSIM

• 请确认手机已解锁。锁定在本国网络的手机不会接受其他运营商的SIM卡或eSIM。您的运营商可以告知详情。
• 请核实手机是否支持eSIM：购买eSIM套餐前，请查看手机设置或说明书。
• 看清套餐包含什么：流量额度、有效期、是否提供英国手机号码，以及流量用完后会怎样。
• 请核实您所到之处的信号覆盖，而不只是伦敦（见下文）。面向游客销售的eSIM套餐可能使用英国的某一家网络，因此覆盖问题是一样的。
• 请妥善保管本国SIM卡（如果您更换SIM卡），因为其中可能存有您的银行验证码。

eSIM on the UK networks

What each of the four UK mobile networks’ own help pages said about eSIM when we read them on 1 November 2026. We list no prices, rank no one and earn nothing from these links. eSIM plans sold to visitors may use one of these networks, so the coverage check below still applies.

Terms change. Read the provider’s own terms before you buy, and check your phone supports eSIM and is unlocked.

Wi-Fi

许多酒店、咖啡馆、车站和博物馆提供Wi-Fi。请将公共Wi-Fi视为他人也可接入的网络：尽量不要在其上进行网银操作或输入密码，涉及敏感信息时请改用移动数据。如果运营商支持，手机的Wi-Fi通话也有助于解决室内移动信号较弱的问题。

覆盖范围与乡村地区

Ofcom’s free checker lets you enter a postcode and see predicted mobile coverage by provider.^[5] It predicts; it cannot tell you about maintenance or faults in an area.^[5] Try it for the places you plan to stay and walk.

In its spring 2026 update, Ofcom said that the share of the UK landmass predicted to have good 4G coverage from all of the networks reached 84%, and that predicted 4G coverage from at least one network remained at 96%.^[6] The gap between those two figures is why a visitor’s phone can work in one valley and not the next: the network that has a signal there may not be yours. Ofcom’s update noted gains in rural areas, but these are predictions for the whole landmass, not a promise for any one road or footpath, so check remote routes (for example in the Highlands, Wales or the Lake District) before you rely on a signal. Download offline maps and any tickets before you set out.

Trains are a weak spot too. Ofcom’s research on 24 railway segments in England, Scotland and Wales found that mobile performance was poor on between 58% and 83% of tests, depending on the network.^[7]

较旧的手机

Ofcom says 3G is already switched off in the UK, and the 2G networks will follow: every network operator has told the government it will switch 2G off by 2033 at the latest, and some may go sooner.^[8] A 4G or 5G phone is unlikely to be affected. A phone that only supports 2G or 3G may not work at all.^[8]

插头与电压

The UK uses the Type G plug (standard BS 1363), with a mains supply of 230 V at 50 Hz.^[9][10] Bring a Type G adapter, or buy one in an airport shop. Most phone and laptop chargers say “100–240 V” on the label and only need an adapter; a device that does not list 230 V needs a voltage converter, or should be left at home. Our packing checklist includes it.