China eSIM: What Works, What It Costs, and What Breaks
Buy a roaming eSIM whose data routes outside the mainland gateway — in practice a Hong Kong-routed plan — and Google, WhatsApp, Instagram and Maps load the moment you land. A mainland-only plan will not, however much data it carries. That one property, not the brand on the checkout page, is what you are actually buying; every price below is the number the seller displayed on its own China page on 29 October 2026, in USD, with no coupon and no conversion.
The short answer. On that date metered China plans ran from $0.74 to $5.00 per GB and unlimited plans from $2.55 to $4.10 per day. A 30-day, 5 GB Nomad plan cost $14; 10 days of unlimited data on Holafly cost $37.50. Metered wins if you stay under about 2 GB a day. Unlimited wins if you tether, stream, or would rather not count.
Does a China eSIM actually work once you land?
Yes, with one condition that the plan tables never print: the data has to leave China through a route outside the mainland gateway, or Google, WhatsApp and Gmail will not load no matter how good the signal is. That is a routing property of the plan, not of your phone, and it is the single thing worth checking before you pay.
So ask the seller one question before you pay: does my data leave through a gateway outside mainland China? A Hong Kong-routed roaming plan answers yes; a mainland local plan answers no, and no amount of data fixes that. If the listing will not answer it, the listing is the answer.
What the sellers actually publish, read on 29 October 2026:
- Nomad names the networks its China plan attaches to — China Unicom on 5G and China Telecom on 4G — and tells you to switch between them manually when one is weak. It does not promise that Google works without a VPN; the customer reviews Nomad displays on that same page say Google and Yahoo loaded without one.
- Holafly does not name a carrier on its China page. It states that the plan includes a VPN at no extra cost, and that data is unlimited on 5G and 4G where available.
Treat both as seller claims rather than guarantees about your handset. What you can do before flying is install the plan and confirm the profile is present — an installed profile is the part you control.
Which network does each plan attach to?
| Seller | Network named on its own China page | Page read on |
|---|---|---|
| Nomad | China Unicom (5G), China Telecom (4G); the page tells you to switch manually | 29 Oct 2026 |
| aloSIM | China Unicom, listed as LTE/5G | 29 Oct 2026 |
| Holafly | No carrier named on the China page | 29 Oct 2026 |
Sources: nomadesim.com/en/china-esim, alosim.com/en/china-esim, esim.holafly.com/esim-china/ — all read 29 October 2026.
What a China eSIM costs, plan by plan
Seventeen plans from two sellers, priced on the same afternoon. Unit cost is my arithmetic on the two numbers in the row, not a figure the seller publishes: price divided by gigabytes for metered plans, price divided by days for unlimited ones.
| Seller | Plan | Data | Days | Price (USD) | Unit cost |
|---|---|---|---|---|---|
| Nomad | Local China | 1 GB | 7 | $5.00 | $5.00/GB |
| Nomad | Local China | 3 GB | 30 | $10.00 | $3.33/GB |
| Nomad | Local China | 5 GB | 30 | $14.00 | $2.80/GB |
| Nomad | Local China | 10 GB | 30 | $19.00 | $1.90/GB |
| Nomad | Local China | 20 GB | 30 | $22.00 | $1.10/GB |
| Nomad | Local China | 50 GB | 45 | $37.00 | $0.74/GB |
| Nomad | Local China | Unlimited | 3 | $12.00 | $4.00/day |
| Nomad | Local China | Unlimited | 5 | $18.00 | $3.60/day |
| Nomad | Local China | Unlimited | 7 | $25.00 | $3.57/day |
| Nomad | Local China | Unlimited | 10 | $33.00 | $3.30/day |
| Nomad | Local China | Unlimited | 15 | $39.00 | $2.60/day |
| Holafly | China unlimited | Unlimited | 3 | $11.90 | $3.97/day |
| Holafly | China unlimited | Unlimited | 5 | $20.50 | $4.10/day |
| Holafly | China unlimited | Unlimited | 7 | $27.50 | $3.93/day |
| Holafly | China unlimited | Unlimited | 10 | $37.50 | $3.75/day |
| Holafly | China unlimited | Unlimited | 15 | $51.50 | $3.43/day |
| Holafly | China unlimited | Unlimited | 30 | $76.50 | $2.55/day |
Two Nomad rows were already discounted when I read the page: the 10 GB plan showed $19 against a listed $22, and the 20 GB plan showed $22 against a listed $30. The table uses the price shown, because that is what a buyer sees at checkout. Holafly's page also prices in other currencies; the figures here are the USD column of its own plan table.
Download this table as CSV — 17 plans, prices read 29 October 2026
Metered or unlimited: the arithmetic, not the marketing
Take the two plans a first trip usually lands between. Nomad sells 20 GB over 30 days for $22, which is $1.10 per GB (22 / 20). Holafly sells 10 days unlimited for $37.50, which is $3.75 per day (37.50 / 10).
Spread 20 GB across the 10 days you are actually in the country and you have 2 GB a day (20 / 10). If your real use sits under that, the metered plan costs $22 against $37.50 and you keep the rest of the 30 days for a second trip. If you tether a laptop, upload video, or use your phone as the hotel Wi-Fi, unlimited stops being the expensive option — with one catch: Holafly caps sharing at 1 GB per day, and the total you can share is the plan length in days, so a 7-day plan shares 7 GB.
How the install works, in two paths
Either the plan installs from the seller's app or checkout, or you scan a QR code the seller emails you. The second path is where people go offline on day one, because that code is single-use and time-limited: if the first scan throws an error, scanning the same image again fails the same way. The fix is a profile reset from the seller, not another scan. The full walk-through, including the APN check, is on how to install a China travel eSIM.
Can you install it after you land?
Yes, both paths work on arrival — the constraint is the QR code, not the airport. Two timing facts worth knowing before you decide to leave it until you are standing in arrivals:
- You need a second screen to scan a QR code with the phone that is being set up, and airport Wi-Fi is the worst place to discover you do not have one.
- Nomad's own plan data states that a plan starts automatically when it first connects to a network, or after 60 days. An unused plan can therefore start its clock without you, so buying months early is not free.
What to do when it does not work
- Check which line is carrying data. The travel eSIM has to be the active data line and data roaming has to be on for it, while your home line stays on for calls and texts.
- Switch the network by hand. Nomad's China page documents two networks — China Unicom and China Telecom — and says to switch when one is weak. Auto-selection does not always pick the better one indoors.
- Do not rescan a code that already errored. Ask for a profile reset; the emailed code is single-use and will keep failing.
- Check the APN. If the profile installed but nothing loads, the access point name is the next thing to look at, and it is set by the seller, not by your carrier at home.
What this page did not verify
Being explicit, because most pages in this niche are not:
- I did not test any of these plans inside China. There are no speed or latency figures on this page because I have not measured any.
- I did not confirm which carrier Holafly's China plan uses. Its page does not name one, so I did not guess.
- I did not buy a plan, so I have not seen a QR email or a refund handled from the inside. The refund terms quoted elsewhere are the sellers' wording, not my experience.
- Every price is a snapshot from 29 October 2026 and two of them were already promotional that day. Re-check at checkout.
- This page carries no affiliate links and nothing on it is paid placement. The plan-by-plan comparison, which does carry commercial links, is Best eSIM for China.
Sources, with the date I read each one
- nomadesim.com/en/china-esim — plan names, durations, data allowances, USD prices, network list, activation rule — read 29 October 2026.
- esim.holafly.com/esim-china/ — day-by-day USD price table, unlimited data statement, hotspot cap, VPN statement — read 29 October 2026.
- alosim.com/en/china-esim — network (China Unicom) only; its price display was in a currency I could not confirm, so no price from it appears above — read 29 October 2026.