eSIM

7 Shanghai eSIM Tips for Digital Nomads (What Really Works)

In Shanghai the cafe Wi-Fi is a local network, so your eSIM carries more of the working day than anywhere else in Asia. What works on it, what may not, and how to size a daily plan.

Quick answer: For remote work in Shanghai, install a China eSIM at home before you fly, because Apple says eSIMs from carriers outside mainland China cannot be installed once you are there. On 25 October 2026 Fizen's China plans run on China Unicom 4G and 5G as a daily allowance of 1, 2 or 3 GB (384 kbps after), or unlimited with no speed cap stated. Chinese apps work on any connection; access to foreign services depends on how the plan routes traffic, with no promise for any one app.

Key takeaways

Install before you land. Apple says non-mainland eSIMs cannot be installed while you are in mainland China.
Hotel and cafe Wi-Fi are local networks. A July 2026 travel guide reports Google and WhatsApp do not load on them, so plan for your mobile data to carry the work tools.
Daily plans, sized per day. China Unicom, 1 to 3 GB of high speed each day, then 384 kbps until the next day. Unlimited exists with no speed cap stated.
Keep the home SIM on. Alipay may send sign-up or bank verification codes to your home number, and the travel eSIM is data-only.

Wukang Road, a Tuesday morning, a flat white, cafe Wi-Fi connected, and the shared drive with the client deck refusing to load. Shanghai is a superb city for a working month, but its network rules differ from Bangkok or Taipei, and the difference lands on your phone's data line.

The fix: buy and install the eSIM at home on Wi-Fi, keep your home SIM on for bank SMS, and turn the travel line on when you land at Pudong or Hongqiao.

What actually works on a foreign eSIM in Shanghai?

Split your apps into two groups. Chinese apps such as WeChat, Alipay and the metro run normally on any connection, hotel Wi-Fi included. A guide dated 20 October 2026 says many travellers can add a Visa, Mastercard or Amex card in Alipay and sign up with a foreign number.

Foreign services are the other group. A travel guide updated 3 July 2026 reports that Google and WhatsApp do not load on local Chinese networks, hotel Wi-Fi included. On a travel eSIM, Fizen's eSIM Terms of Use say mobile traffic may be routed through another country, which is why familiar apps often keep working on mobile data. The same terms say services may still be restricted depending on network, routing and local law.

On day one, test on the eSIM line with Wi-Fi off: mail, calendar, your video-call tool, your password manager.
Keep offline copies of anything you cannot lose access to: boarding passes, the client deck, hotel address in Chinese.
Agree a backup channel with clients before you fly, in case one tool does not open.

Which network does a Shanghai eSIM use, and what does 384 kbps allow?

On 25 October 2026 the Fizen China plans run on China Unicom, 4G and 5G. They are sold per day: a high-speed allowance of 1, 2 or 3 GB each day, for 3 to 30 days, after which speed drops to 384 kbps for the rest of that day. There is also an unlimited plan from 3 to 30 days with no speed cap stated in the catalogue. Zoom lists 60 to 80 kbps for audio, so a voice call usually survives the throttle; a 360p group video call needs about 600 kbps down, so video will not.

Hotspot support is set per plan; check Package details, because in China the laptop often leans on the phone.

How much data does a working day in Shanghai use?

The plans are daily, so size them by your heaviest normal day. Zoom puts a 720p group call at about 2.6 Mbps up and 1.8 Mbps down, roughly 2 GB an hour.

Your Shanghai working day	Rough mobile use per day	Daily plan that fits
Work tools load on cafe Wi-Fi; eSIM for maps, metro, menus, messages	About 0.5 GB	1 GB a day
Mail, chat and short calls on the eSIM, some hotspot	About 1 to 2 GB	2 or 3 GB a day
Laptop on hotspot most of the day, video calls on data	3 GB or more	Unlimited, no speed cap stated

Most Fizen eSIMs cannot be topped up: more data means a new eSIM, and on a China trip that new eSIM has to be installed before you enter the mainland. Pick the daily size and the full number of days at home.

How do I get around and pay once the data works?

Shanghai Metro took international contactless cards at the gates across all 21 lines and 517 stations from 28 June 2025, including Visa, Mastercard, Amex and JCB, with small-amount password-free payment switched on. The city government counted 10,336 coffee outlets in 2025, so a second desk is never far away. Airport Wi-Fi at Pudong and Hongqiao has a passport login for travellers without a Chinese number.

How do I install the eSIM before flying to Shanghai?

Check the phone. It must support eSIM and be carrier-unlocked. Some region models ship without eSIM, so check the compatibility list before you pay.
Buy before you fly. Pick the daily size and number of days on the web store, paying by card, Apple Pay or Google Pay.
Install at home on Wi-Fi. Supported iPhones install with one tap; Android and older phones scan a QR code. Do this before departure, not on arrival.
Label it and keep your home SIM. Name the line "China data", keep your home SIM on for calls, bank SMS and Alipay codes, and set the eSIM as the data line.
Switch on after landing. Turn the eSIM line on and enable data roaming for that line only.

Prefer to pay in USDT on Solana or BNB Chain? Buy inside the Fizen app instead: new users get US$10 of eSIM credit in the Fizen app's eSIM tab.

What if the eSIM fails mid-stay?

If the eSIM fails because of a fault on Fizen's side, you get a free 1-for-1 replacement for the length of the trip, or a refund for the days you could not use, and a real person handles it in the in-app chat. Send the order ID, the ICCID from My eSIMs, your phone model and a screenshot. If your plans change, an unused eSIM that is not installed yet can usually be taken back; eligibility depends on the plan, so check Package details or ask chat. An installed eSIM cannot be returned for a change of mind.

When is a Chinese SIM the better choice?

The Shanghai government says 14 points at Pudong and Hongqiao sell SIM cards and data packages right after customs, taking foreign currency and bank cards. A Chinese SIM needs your passport and in-person real-name checks, and it gives you a Chinese number, which some local services ask for. Its data runs on the local network, so expect the same access as hotel Wi-Fi. For a first month, installing the eSIM at home is the shorter path.

Sorted, the month is small and good: the deck opened before the meeting, the metro gate tapped with your own card, the next cafe found on Wukang Road without asking for a Wi-Fi password.

Frequently asked questions

What is the best eSIM for a digital nomad in Shanghai?

One installed before you arrive, on a strong network, sized by your heaviest day. Fizen's China plans run on China Unicom 4G and 5G (25 October 2026), from 1 GB a day up to unlimited.

Do Google and WhatsApp work on a travel eSIM in China?

They often do, because travel eSIM traffic may be routed through another country, but Fizen's terms promise no particular service. On hotel and cafe Wi-Fi they generally do not load.

Can I install a travel eSIM after landing in Shanghai?

No. Apple says eSIMs from carriers outside mainland China cannot be installed while you are located in mainland China. Install it at home.

Can I use my bank card on the Shanghai Metro?

Yes. Since 28 June 2025 Visa, Mastercard, Amex and JCB contactless cards work at gates across the network, with small-amount password-free payment on.

Can I top up a China eSIM?

Usually not. Most Fizen eSIMs cannot be topped up, and a new one must be installed before you enter China, so buy all the days you need.

Get your China eSIM before you fly to Shanghai

Pick a daily size and the days for your stay and install at home on Wi-Fi before departure. Pay on the web by card via Stripe (international Visa or Mastercard, Apple Pay or Google Pay), or with USDT on Solana or BNB Chain in the Fizen app.

See China eSIM plans

Terms and conditions

Information only. This article is information only, not an offer or sale, and not financial, legal, tax or travel advice. Plan details were read from the Fizen catalogue on 25 October 2026 and can change; check Package details before you buy.
For readers in the United States. This is information only, not an offer or sale, and not advice. Fizen products and services are not offered to US Persons.
Data-only. Travel eSIM plans are data-only and do not include a Chinese phone number. Keep your home SIM active for calls and SMS. Your phone must support eSIM and must not be locked to a carrier.
Faults and returns. A verified Fizen-side fault gets a free 1-for-1 replacement for the length of the trip, or a refund for the days you could not use. If the trip is cancelled or plans change, an unused eSIM that is not installed yet can usually be taken back; eligibility depends on the plan, check Package details or ask chat. An installed eSIM cannot be returned for a change of mind.
Follow local law. Fizen's eSIM Terms of Use state that mobile traffic may be routed through another country and that certain websites, applications or services may be restricted depending on the network, routing location, service provider or local law. This article makes no promise about any specific service and does not advise on getting around any country's rules. Check the Package details of the plan you buy and follow the laws of the country you are in.
Not affiliated. Fizen is not affiliated with, endorsed by or a partner of China Unicom, Shanghai Metro, Alipay, WeChat, Apple, Zoom or any other third party named here.

Sources

Fizen catalogue facts (carrier, networks, throttle, plan sizes) read on 25 October 2026. Local facts checked on 25 October 2026.