Wondering whether you need 1GB, 2GB, or more mobile data per day in China?
Before looking at recommendations online, check how much mobile data you already use at home.
You probably won't become a different phone user just because you're traveling in China. Your normal usage is a better starting point than someone else's estimate.
Start with your own data use
Check your phone or carrier account to see how much mobile data you've used over the past month or billing cycle.
If you normally use 12GB in 30 days, that's roughly 400MB per day.
It's not an exact prediction. It's simply a starting point based on your own habits.
On iPhone, check the dates carefully. The Current Period figure under Cellular or Mobile Data may cover the time since you last reset the statistics, not your latest billing cycle. If you're unsure, check your carrier's records.
A better test: spend one day without Wi-Fi
Want a more realistic estimate? Try this before your trip:
Turn off Wi-Fi for one normal day and use your phone as usual.
At the end of the day, check how much mobile data you used.
This can tell you more than your monthly average. At home, you may spend hours connected to Wi-Fi without using any mobile data.
When traveling, you'll probably rely on your mobile connection much more often.
One day without Wi-Fi gives you a useful reference based on how you actually use your phone.
Will you use more data in China?
Probably a little.
You'll likely use maps and navigation more often. Translation, DiDi, payments, and looking up unfamiliar places will add some usage too.
But using your phone frequently doesn't necessarily mean consuming large amounts of data.
For many travelers, maps will be the most noticeable extra use. How much data you need still depends mainly on your usual habits.
The big exception: video
If you spend hours watching TikTok, YouTube, or other videos, plan differently.
Ordinary hotel Wi-Fi in mainland China may not provide access to some of the overseas services you normally use. Don't assume you'll be able to watch everything over hotel Wi-Fi.
If you watch a lot of video, consider a larger mobile data package. Another option is using a paid VPN with hotel Wi-Fi, but VPN use in China is subject to local regulations, so check the current rules before relying on one.
Video can use far more data than maps, messaging, or translation. This one habit can make a big difference.
Leave some room
Once you have an estimate, don't buy exactly that amount.
Leave some room for extra maps, heavier days, or simply using more data than expected.
Also check what happens when your data runs out. Some plans stop working, some slow down, and some roaming plans may charge extra.
Start with your normal usage, adjust for your travel habits, then add a buffer.
That's a better answer than any generic "GB per day" recommendation.
A note on CONNECT
ChinaGo CONNECT includes 20GB for 30 days.
20GB isn't a prediction of how much you'll use. It's room not to worry about it.
If your existing roaming already gives you enough data, keep using it.