First safe move
Start here: Make mobile data work before the first airport-to-hotel transfer.
Back to readiness and recovery answers
Phone and apps
Can travelers rely on WhatsApp in China?
In short
Do not rely on WhatsApp alone. Prepare hotel contact details, a local-friendly messaging path when possible, and an eSIM or roaming setup that keeps essential communication available.
Behind this answer
Operator source: Airalo
Operator source: Apple — Use eSIM while traveling internationally with your iPhone (read July 24, 2026)
Editorial check
Reviewed as a concise travel answer
Phone, eSIM, maps, and app answers were reviewed with the current connectivity comparison and setup guidance.
- Information checked
Current network access, eSIM or roaming routing, hotel contact options, and the traveler's own phone/app setup. Provider plans, device compatibility, app availability, roaming behavior, and network routing can change before departure.
Recovery template
Use the answer as a recovery path, not just a reading page
Start with the immediate move, keep a human or offline fallback, and only rely on live rules after checking the official operator, provider, or source.
Use app setup checklistFallback path
Use saved offline hotel details, home-SIM SMS or roaming, hotel Wi-Fi, provider support, and screenshots until mobile data is stable again.
Do not assume
Do not treat this answer as final live proof. Do not use as proof of current network access, app availability, provider routing, or device compatibility without checking the live provider and device state.
Source boundary
Current network access, eSIM or roaming routing, hotel contact options, and the traveler's own phone/app setup.
Action path
What to do next
A practical answer should leave the traveler with a few moves they can actually make before the trip or at the point of friction.
1
Make mobile data work before the first airport-to-hotel transfer.
2
Save hotel, route, and support details offline.
3
Treat map, message, and translation apps as dependencies, not decorations.
Official source
What an official source actually states
These facts are read straight from the operator's own page, so you can check each one at the source rather than take it on our word.
No official source names any messaging service, so nobody can cite one to you
The regulation that administers international networking runs to twenty-five articles and names no service at all. That is the sourced reason this site will not tell you a particular messenger will or will not work: the claim has no official page behind it, wherever you read it.
Where in the source: The regulation contains no service list; 第七条 addresses protection of users' communication freedom and privacy, not reachability of named platforms.
What is stated is that communication freedom and privacy are legally protected
Article 7 places users’ freedom and privacy of communication under legal protection and bars anyone from using international networking to infringe them in violation of law. It is a framework statement rather than an operational promise, but it is the one thing in this area that is actually written down.
Where in the source: 第七条: “用户的通信自由和通信秘密受法律保护。任何单位和个人不得违反法律规定，利用国际联网侵犯用户的通信自由和通信秘密。”
Arrange a contact route that does not depend on the answer
Because reachability cannot be sourced, the durable preparation is agreeing with people at home on a channel you have actually tested after landing, and carrying your accommodation’s own phone number. Both work regardless of which messenger loads.
Where in the source: Derived from the absence: no official page publishes service reachability, so preparation that assumes a specific app is unsourced.
Source: Ministry of Public Security (公安部令第33号), 计算机信息网络国际联网安全保护管理办法, full text in the State Council Gazette on www.gov.cn — 计算机信息网络国际联网安全保护管理办法 (Measures for Security Protection Administration of the International Networking of Computer Information Networks) (source 公安部令第33号, State Council Gazette reprint; read August 22, 2026)
What this source does not settle: ⚠️ The most important thing this layer establishes is what **cannot** be sourced. The regulation opened here administers security protection for international networking; it lists no service, site or app and says nothing about whether any of them is reachable. No official page publishes such a list, which is why every confident answer you read about a specific app is somebody's field report rather than a rule — including the operational notes on this site's connectivity pages, which are marked as exactly that. This layer deliberately records no workaround of any kind, and nothing here should be read as guidance about circumventing anything.
Answer hub
This answer belongs to a topic cluster
Cluster pages help travelers move through related questions without losing the thread.
Related guides
Continue from the answer
Use these pages when the traveler needs the longer context, product path, or supporting decision.
Related questions
More questions in this cluster
These questions share the same travel problem and help you move sideways without restarting.