Wanting to call China from Singapore is one of the first things a mainland newcomer sorts out, whether it is a nightly video chat with parents in Chengdu or a quick work call to a supplier in Shenzhen. The good news is that you have several routes, and most cost far less than the international rates people remember from years ago. This guide walks through the main methods, what suits regular callers versus occasional ones, how to keep the sound clear, and the time-zone maths that saves you from waking anyone at 3am. Prices and plan names change often and Singapore telecoms are regulated by IMDA, so treat the figures here as general guidance and confirm current rates on each provider’s own site.
The Four Main Ways to Call China
There is no single best option, only the one that fits how often you call and who you are calling.
Messaging and VoIP apps. For most personal calls, an app is the cheapest and simplest choice. WeChat is the default across the mainland, and voice or video calls between two WeChat accounts travel over the internet, so they use your data or Wi-Fi rather than any call minutes. Other internet-calling apps work the same way. The catch is that both sides usually need the same app installed and signed in, which is fine for family but not for calling a landline, a hospital desk or a government hotline back home.
IDD and international add-ons. International Direct Dialling (IDD) lets you dial any Chinese number, mobile or landline, straight from your Singapore phone. You typically dial the international access code, then China’s country code 86, then the number. Local telcos offer IDD either as pay-per-minute rates or as an add-on bolt-on that bundles a block of international minutes for a monthly fee. This is the route when you need to reach a number that is not on an app.
eSIM and roaming. If you travel back to China regularly, a travel eSIM or a roaming pass can matter. Roaming keeps your Singapore number reachable while you are in China, though rates are higher. A separate travel eSIM gives you local data in China at lower cost, which in turn makes app calls cheap while you are there. For calling China from Singapore, eSIM is less relevant, but it is worth knowing for the return trips.
Calling cards. Prepaid international calling cards still exist and can be economical for reaching landlines. You buy credit, dial an access number, then the destination. They suit people who do not want an app or a plan change, though the per-call steps are fiddlier and the market is smaller than it once was.
Comparing the Methods
The table below sizes up the common options on the things that actually decide your choice. Read it as a general picture rather than a price list.
| Method | Typical cost | Call quality | Ease of use | Best for |
|---|---|---|---|---|
| WeChat / VoIP app | Uses data or Wi-Fi, no per-minute charge | Very good on strong Wi-Fi, variable on weak data | Very easy once both sides are set up | Daily family video and voice calls |
| IDD pay-per-minute | Charged by the minute, no commitment | Consistent, uses the mobile network | Easy, just dial | Occasional calls to any number |
| IDD add-on / bundle | Fixed monthly fee for a block of minutes | Consistent, uses the mobile network | Easy after a one-time setup | Regular callers to landlines or non-app numbers |
| Travel eSIM | Low local-data cost inside China | Depends on local coverage | Some setup, mainly useful in China | Frequent travellers heading back |
| Calling card | Prepaid credit, competitive to landlines | Fair, depends on the route | Fiddlier, extra dialling steps | Reaching landlines without a plan change |
Which Suits You: Regular Versus Occasional Callers
If you speak to family in China almost every day, lead with a VoIP app and treat everything else as backup. A WeChat video call over home Wi-Fi costs you nothing beyond your broadband, and the quality on a decent connection rivals a local call. Where a monthly IDD add-on earns its keep is when you regularly ring numbers that are not on any app, for example an elderly relative who only uses a landline, a clinic, a bank or an estate agent back home. A bundle of international minutes gives you predictable spending and no per-call worry.
If you call China only now and then, avoid committing to a monthly add-on. Pay-per-minute IDD, or simply a free app call when the other person has WeChat, keeps costs at zero or near it. The one habit to build is checking whether your default dialler is quietly applying a high casual IDD rate; some plans charge a premium for ad-hoc international dialling, so a cheap add-on or an app is usually better even for modest use.
Getting Clear Call Quality
Most complaints about calling China are really about the connection, not the method.
- Favour Wi-Fi for app calls. A stable home or office Wi-Fi network gives the smoothest video. If you must use mobile data, a 4G or 5G signal handles voice easily and video well.
- Close bandwidth-hungry apps. Large downloads or streaming on the same network can make a video call stutter. Pause them during the call.
- Switch video off if the line is weak. Dropping to voice-only frees up bandwidth and often rescues a choppy call instantly.
- For IDD, signal is king. A call placed indoors near a window or outdoors will hold up better than one from a lift lobby or a basement carpark.
- Test with a short call first when you try a new method, so you are not troubleshooting during an important conversation.
A practical point on numbers: when you save Chinese contacts, store them in full international format starting with +86. That way the same entry works whether you dial by IDD, tap it in an app, or travel back and use it locally, and you never have to guess about a leading zero.
The Time-Zone Practicalities
China runs on a single national time that is the same as Singapore time, with no seasonal clock changes on either side. That is a genuine gift: when it is 8pm for you, it is 8pm for your family across the mainland, from Harbin to Kunming. You can call after dinner without doing any arithmetic, and a workday morning here lines up with a workday morning there.
The only wrinkle is that China’s one time zone spans a wide country, so daily life runs later in the far west. Sunrise and working hours in places like Xinjiang shift accordingly even though the clock reads the same. For family in the eastern and central provinces, where most newcomers have roots, the everyday rhythm matches Singapore closely, so an evening call here is an evening call there.
Putting It Together
For most mainland newcomers the sensible setup is simple: use a VoIP app such as WeChat as your everyday line to family, add a low-cost IDD bundle only if you regularly ring non-app numbers back home, and keep a travel eSIM in mind for trips back rather than for calling from Singapore. Save every Chinese contact in +86 format, lean on Wi-Fi for the clearest video, and enjoy the fact that there is no time difference to manage. Because plans, add-ons and rates are refreshed often and are regulated by IMDA, always confirm the latest details with your chosen provider before you commit.
Explore more: Best Mobile Plans in Singapore · Keeping a China Phone Number in Singapore · Using WeChat in Singapore