One eSIM for China, Hong Kong and Macau

The Greater Bay area spanning mainland China, Hong Kong and Macau is a route many travellers and workers cover as one trip, but each of the three has its own network operators and its own border control. This page explains how a single eSIM behaves when you cross, and what to check before you buy. It has no prices or data figures, because the plan list below comes from the live catalogue.

Why check that all three areas are covered

Some plans say China but leave out Hong Kong or Macau, and others focus on Hong Kong and Macau without the mainland. If you buy without reading the list, you may cross a border and find you have no data. The safe approach is to open the plan page and see China, Hong Kong and Macau each written out clearly.

What the phone does when you cross

When you walk across, the phone drops the network of the first area and searches for one in the new area, which usually takes a few minutes. Near a crossing the phone may sometimes still cling to a signal from the other side, so the network name or alerts change. This is normal in border areas.

1. 1Clear the border firstDo not fiddle with settings in the queue. Wait until you are through.
2. 2Look at the signal barIf you have signal and can open a page, nothing more is needed.
3. 3機内モードを切り替えるIf no signal appears after a few minutes, turn airplane mode on and off once.
4. 4Check data roamingConfirm data roaming is on for the eSIM profile. Menu names differ by phone and OS version.

The network in China differs from Hong Kong and Macau

How a plan connects in mainland China may differ from Hong Kong and Macau. For instance, the route your data takes through the supplier's network can change, and a service that opens in Hong Kong may not open in China. Read the plan notes and our guide to the internet in China.

One pack or separate eSIMs per area

If you cross several times in one trip, a three-area pack saves you switching profiles at every border. If you spend nearly the whole trip in Hong Kong with just a half-day in Macau, comparing against a Hong Kong-only plan is also useful. Compare total price and data from the live plan pages.

中国の場合：eSIMプランを見る

香港の場合：eSIMプランを見る

マカオの場合：eSIMプランを見る