Both get you online in China. The right choice depends on your phone, how long you stay, and whether you need a local number. Here’s the honest comparison.
TL;DR
- eSIM — best for most short-term travellers: instant, keep your home SIM/number, no swapping. Needs an unlocked eSIM-capable phone.
- Physical SIM — best if your phone isn’t eSIM-ready, you want a local number/data-heavy plan, or you’ll register locally anyway.
- Roaming — simplest but usually the priciest and slowest.
Side-by-side
| Factor | eSIM | Physical SIM |
|---|---|---|
| Setup speed | 2 min, before you fly | On arrival, needs passport registration |
| Keep your number | Yes (dual-SIM) | Often means removing your SIM |
| Phone support | iPhone XS+/Pixel 3+/recent Galaxy | Any unlocked phone |
| Local number | Usually data-only | Yes, with a voice plan |
| Top-up | In-app / buy another eSIM | Local stores/apps |
When each wins
Pick eSIM for a 3–30 day trip on a modern phone — it’s the least friction. Pick a physical SIM if you need a Chinese number for work, stay months, or your phone lacks eSIM. Some travellers use both: eSIM for data, a local SIM for a number.
FAQ
Do I need to register a passport?
Physical SIMs in China require real-name registration; eSIM data plans are usually simpler.
Can I use eSIM and my home SIM together?
Yes — that’s the main advantage. Keep your number, add China data.
Will my apps work?
Data yes; some Western apps need a VPN regardless of SIM type.