Phones in China: eSIM, Dual SIM and What to Actually Buy

TL;DR (30-second version)

Bring your own phone. Most phones sold outside China work here on 4G and mostly on 5G, so the only thing you actually need is a SIM. Visitors: grab an international eSIM data plan before you land and skip the airport queue. Residents: walk into a China Mobile or Unicom store with your passport and you will have a working number in about twenty minutes. Buy inside China only if yours is dead or ancient — and then buy the global version, not the mainland one.

The short answer

The short answer: you almost never need a “China phone.” You need a SIM. A prepaid card with a few gigabytes costs a few dozen yuan a month, and pairing it with the phone you already own is the cheapest, least annoying setup we have found in years of doing this. Buy only when the phone itself is the problem.

Step zero: check your own phone’s bands

Chinese carriers run 4G on the usual bands — B1, B3, B5, B8 — so any recent phone from Europe, the US, or Asia finds signal. The catch is 5G: China Mobile also broadcasts on n79 (4.8 GHz), and many imported phones, especially US-market models, skip that band. Downtown on China Mobile you may sit on 4G while a colleague hits 5G — calls, payments, and WeChat still fly, so you barely notice.

eSIM in China: the honest status

Here is the thing nobody tells you: eSIM barely exists on mainland phones. The iPhones sold in Apple’s mainland stores — we have bought them through the 16 — ship without working eSIM; you get the physical tray or nothing. Chinese carriers offer eSIM for smartwatches and international roaming, not for ordinary domestic service on most handsets. Plan on a physical SIM.

Visitors get a better deal. An international eSIM that lists China coverage works fine because it roams onto Chinese networks — friends of ours have ridden two-week trips on Airalo and Nomad smoothly. Budget $8–20 for a week of data. Caveats: data-only (no number), and budget brands can throttle at rush hour — read reviews first.

Why everyone runs two SIM slots

Dual SIM is table stakes here, not a premium feature. Most Chinese Androids ship with two physical nano-SIM slots because almost everyone carries two numbers: work and personal, or mainland and home. Prepaid is the default — no contracts, no credit checks — and topping up is a few taps in WeChat or Alipay. That is the whole system.

If you do buy: mainland vs global version

The mainland version is cheaper and keeps its full warranty here, but it ships without Google services — no Gmail, no Maps, no Drive — and with the Chinese app store. You can install Google by hand, but updates get flaky. Fine if you live inside WeChat; a headache if you travel back West. The global or Hong Kong version costs a bit more and gives you Google out of the box. We buy global, every time.

Current shop prices (2025–26, what we have seen): a decent Redmi or Realme around ¥1,200–1,800, midrange phones ¥2,000–3,500, flagships from Xiaomi, OPPO, or vivo ¥4,000–6,500, and iPhones have opened at ¥5,999 for the base 128 GB since the 15.

The 20-minute SIM run

Bring your passport — the original, not a photo. Real-name registration has been mandatory for over a decade, so counter staff will record it. Airport counters at Pudong, Capital, and Baiyun sell tourist SIMs (a week of data roughly ¥100–200). City carrier stores handle foreigners daily: pick a plan, hand over the passport, and the SIM is active before you leave.

The traps we have hit, so you do not

• Market-stall “international unlocked” phones are sometimes mainland units with a swapped ROM and badly bolted-on Google — buy at a proper store or an official mall.
• Carrier-bundled contract phones are rare now but still surface in street shops — confirm prepaid and unlocked before paying.
• Some midrange Androids share the second SIM slot with the SD card. Need a memory card plus two numbers? Check the spec sheet first.
• Roaming a lot in dense downtowns? Ask about n79 support before buying a 5G phone on China Mobile.

Quick answers

Q: Can I just use my home eSIM plan in China?
A: Usually yes, if it lists China coverage and your phone is unlocked. Expect data-only — no number — and check the price before you land.

Q: Do I need to buy a phone in China?
A: No, unless yours is broken. Check the bands first; most imported phones work fine.

Q: What does a prepaid SIM cost?
A: A few gigabytes of data lands around ¥30–60 a month. Ask about the ¥8 keep-your-number plan — stores do not advertise it, but some carriers still sell it.

Q: Will a phone bought in China work back home?
A: The global version, yes. The mainland version: check the bands and the missing Google services before you commit.

Editorial review: EasternReset Team · Snapshot: 2026-09. Found an error? Email us.