Life in Hainan is inconvenient without a local SIM card: app registrations, taxi bookings, QR payments and contacting your landlord are often tied to a Chinese phone number. Here is how to buy a card, what plans exist, how much they cost, and how to top up.
Which operators exist
The three main carriers are China Mobile, China Unicom and China Telecom. Coverage across the island is good, including resort areas and the east coast. The differences are mainly in plans and in what each specific store has in stock.
Where to buy
• Haikou and Sanya airports: carrier counters in the arrivals hall — convenient, but sometimes pricier.
• Official carrier stores in town: the widest choice of plans, plus help with setup.
• Electronics shops and small resellers: faster, but confirm the registration is official.
Do not buy an unregistered second-hand card: it can be suspended, and you will lose access to bank and app verification codes.
What you need to register
SIM cards in China are sold under real-name registration: foreigners register with a passport, and the document is photographed. Bring a passport with a valid visa or entry stamp. Large stores may have English-speaking staff; small ones rarely do, so have a translation app ready.
Typical plans
Tourists and people staying a few months usually choose:
• A tourist card for 7–30 days with 10–50 GB, around 50–150 CNY, with top-ups available.
• A monthly long-stay plan: 30–60 GB plus calls, usually 60–120 CNY per month.
• A minimal plan for a number just to receive SMS and register apps: 20–40 CNY per month.
Prices vary by promotion and city: airports cost more, town stores less. If you plan trips off the island, ask whether mainland data is included.
Activation
1. Compare two or three plans and confirm validity and data allowance.
2. Register with your passport and get the contract or receipt.
3. Insert the card and enable mobile data; if it does not work, ask staff to check the APN settings.
4. Install the carrier's official app to check balance and buy extra data.
5. Note the number down: you will need it for Alipay, WeChat and accommodation bookings.
Top-ups
You can top up in the carrier app, via Alipay or WeChat Pay, at a store counter, or at a shop with a payment terminal. Avoid automatic deductions unless you understand the plan: once the data allowance runs out, extra usage can be expensive.
Alternatives
• An international eSIM: handy for short trips, but usually data-only without a Chinese number, so some apps cannot be registered.
• Hotel and cafe Wi-Fi: fine for messaging, but taxis and street payments still need mobile data.
• Roaming on your own card: more expensive, but keeps your number and lets bank SMS through.
The practical combination is a dual-SIM phone or two devices: a local card for data and apps, your own card for bank SMS.
Frequent questions
Can I buy a SIM without a passport? Not through official channels; real-name registration is required.
How long does activation take? Usually immediate, occasionally a phone restart is needed.
Does it work outside Hainan? Yes, but check the plan: some tourist packages are province-only.
Can I top up from abroad? Through the carrier app or Alipay if a card is linked.
If you need help with renting a home, renting a car, arrival assistance, or property in Malaysia, feel free to contact us and we will recommend the right plan and connectivity option for your situation.