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Aisha
09 March 2026
Planning a trip from Singapore to China and wondering what your Singtel number can do for you while you're there? You're not alone. China is one of the most searched roaming destinations among Singaporean travellers, partly because connectivity there works differently from anywhere else. Singtel does cover China through its ReadyRoam and DataRoam plans, with local partners including China Mobile, China Unicom, and China Telecom. But before you land in Shanghai or Beijing, there's one thing most guides don't explain clearly enough: having a data connection in China is not the same as having access to the apps you use every day. This guide breaks down exactly what Singtel China roaming covers, what it doesn't, and when switching to a travel eSIM makes more practical sense.
When you roam in China on Singtel, your phone connects to one of three local network operators: China Mobile, China Unicom, or China Telecom. These are the country's dominant carriers, and their infrastructure covers all major cities as well as most intercity routes. For postpaid users, connection is automatic once roaming is enabled in your device settings and a plan has been activated via the My Singtel app.
The critical detail that every Singtel subscriber should know before travelling to China: the country's Great Firewall applies to all internet connections within Chinese territory, including roaming data. This means that WhatsApp, Google services, Gmail, Instagram, Facebook, and YouTube are blocked for anyone connecting through a Chinese network — regardless of whether you're on Singtel roaming or a local SIM. The only reliable workaround is a reputable VPN configured and tested before you leave Singapore, since VPN apps themselves are also blocked inside China. Set up your VPN at home, not at the airport gate.
Postpaid users can choose from several add-on plans purchased via the My Singtel app, the Singtel chatbot on singtel.com, or by calling 1688. All plans must be activated within 30 days of purchase. If you exhaust your ReadyRoam data before the validity period ends, another bundle at the same rate is added automatically.
Prepaid (hi! SIM) users have one main option for China: the 7-day Asia Prepaid DataRoam (Plan B), available via the hi!App. It provides 6 GB of data valid for 7 consecutive days and connects to China Mobile and China Unicom networks. Check the hi!App for current pricing before your trip.
Without any plan active, Singtel charges data on a pay-per-use basis in China at approximately SGD $25 per MB. Always activate a plan before you land.
Enable data roaming before departure. Open the My Singtel app, navigate to Roaming, select your China dates, and choose your plan. All ReadyRoam plans come with Network Lock enabled by default, which prevents accidental charges on non-preferred operators.
Set up your VPN in Singapore. This is not optional if you rely on Google Maps, WhatsApp, or Gmail. China's Great Firewall blocks these at the network level. Install and test your VPN on your home WiFi before you travel — downloading a VPN app inside China is not possible since VPN provider websites are also blocked.
Watch the 15 GB fair use cap on unlimited plans. The UnlimitedRoam plans throttle speeds after 15 GB of high-speed usage. For a week-long trip with heavy navigation and video calls, this cap can be reached. The ReadyRoam Asia 4 GB plan with auto top-up may actually work out cheaper for lighter users.
Prepaid users: activate only after landing. Since October 2024, Singtel hi!DataRoam packs activate immediately upon purchase. Buy your pack after clearing immigration at the destination, not at Changi Airport, to make full use of the 7-day window.
Keep Network Lock on. In cities like Beijing and Shanghai, coverage is excellent across all three preferred partner networks. In rural areas or on high-speed trains, your phone may attempt to connect to a non-preferred network. Network Lock prevents billing surprises in these scenarios.
Consider a dual-SIM setup. If you use a phone with eSIM support, you can keep your Singtel number active for receiving calls and OTPs while using a separate China travel eSIM for data. This is particularly useful for travellers who need banking OTPs on their Singapore number during the trip.
Singtel’s China roaming plans are a practical choice for short trips or travellers who primarily need connectivity for maps and messaging. But there are specific scenarios where a dedicated China travel eSIM becomes the better option.
If you’re travelling for more than ten days, the 30 day ReadyRoam bundles offer fixed data at a fixed cost, but a travel eSIM may provide significantly more data for the same or lower price, depending on your usage. For heavy data users, people who work remotely, use video calling regularly, or plan to stream content, the 15 GB throttle on UnlimitedRoam plans can become a genuine limitation.
Multi destination trips within Asia also favour a travel eSIM approach. If your itinerary includes China plus other stops in Southeast Asia or Northeast Asia, buying one travel eSIM that covers multiple countries can be simpler and cheaper than managing separate Singtel add ons for each destination.
It is also worth noting that a TurkSIM eSIM for China connects to China Mobile and China Unicom, the same tier one networks that Singtel uses for its preferred partner roaming. The difference is pricing flexibility and the ability to pre load data before you leave Singapore without worrying about activation timing.
China is a destination where connectivity planning matters more than anywhere else in Asia. The combination of a data heavy travel style and the Great Firewall means most Singaporean travellers end up managing two problems at once: getting enough data, and making sure their apps actually work.
A TurkSIM eSIM for China connects to China Mobile and China Unicom, the same networks that power Singtel’s preferred roaming partners in the country. The practical advantage for travellers is that you install the eSIM profile before you leave Singapore, activate it the moment you land at PVG or PEK, and do not have to think about it again. There is no risk of the plan auto expiring at midnight Singapore time while you are on a connecting flight.
Before travelling, it is worth confirming that your phone appears on the list of eSIM Compatible Phones and reviewing How to install an eSIM on iPhone so the setup process is clear before departure.
For travellers using Dual SIM phones, which covers most modern iPhones, Samsung Galaxy devices, and Pixel phones, the setup works cleanly. Keep your Singtel physical SIM active for receiving calls and banking OTPs, while your TurkSIM eSIM handles all data. This is especially relevant for business travellers who cannot afford to miss a Singapore bank OTP or a work call on their registered number.
Shanghai and Beijing are easy for connectivity. You will find 4G LTE coverage throughout both cities and on inter city high speed rail. The more interesting use case is for travellers venturing to Chengdu, Xi’an, Guilin, or along the Yangtze corridor, where having a robust data connection matters for navigation and translation apps. TurkSIM’s local network partnerships ensure you are drawing from the strongest available signal in each region, not just in tier one cities.
Yes. Singtel's postpaid ReadyRoam and UnlimitedRoam plans cover China, connecting through preferred partners China Mobile, China Unicom, and China Telecom. Prepaid users can access China via the 7-day Asia DataRoam Pack (Plan B) through the hi!App. Without any plan active, standard pay-per-use rates apply and can reach approximately SGD $25 per MB.
This depends on which source you consult — and the reality has changed in recent years. WhatsApp's status in China fluctuates and has been subject to periodic blocking. Even if it functions intermittently, many other apps you rely on (Google Maps, Gmail, Instagram, YouTube) remain consistently blocked. The safest approach is to install and test a VPN before you travel, regardless of what you plan to use.
Without an active roaming plan, Singtel charges approximately SGD $25 per MB of data used in China. At that rate, a single Google Maps route check could cost several dollars. Activating even the most basic ReadyRoam plan before travel eliminates this risk entirely.
For a 7-day trip, the ReadyRoam Asia 4 GB (30-day validity) covers most moderate users — maps, messaging, and occasional browsing. Heavier users who work remotely or use video calls daily may prefer the UnlimitedRoam Asia (14-day), keeping in mind the 15 GB high-speed cap before throttling kicks in. Prepaid users have one option: the 7-day Asia DataRoam Pack (Plan B).
Coverage on the G-train corridor between Shanghai and Beijing is generally good, with China Mobile providing the most consistent signal. You may notice brief drops in tunnels. For reliable navigation during the journey, downloading offline maps before boarding is recommended regardless of which SIM or roaming plan you use.
Data plans (ReadyRoam, UnlimitedRoam, DataRoam) do not include voice calls or SMS. If you need to make or receive calls on your Singtel number while in China, you'll need to add the SMSVoiceRoam Asia plan separately. Receiving calls on your Singtel number while abroad will incur standard incoming roaming call charges unless your plan includes them.
TurkSIM's China eSIM connects to China Mobile and China Unicom — the two largest mobile networks in the country, with combined coverage across all major cities, most provincial capitals, and major tourist routes. China Mobile has the widest rural coverage if you're planning travel off the main tourist trail.
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