What the sources say about Signal
| Source | What it says | Read on |
|---|---|---|
| Wikipedia’s list of blocked websites | Lists Signal as blocked since 16 March 2021. | 5 Nov 2026 |
The Wikipedia table is community-edited and flags itself as needing updates, so treat its dates as a guide and not as a live status. Rules change without notice, and a block can be lifted or added from one week to the next.
Which connection are you on?
An answer about one app depends on the path your traffic takes: local mobile data, a hotel’s Wi-Fi or a roaming eSIM are three different routes. Airalo’s help page says its China eSIM routes data through gateways outside mainland China and that this does not apply to hotel Wi-Fi. That is the provider’s statement about its own product, not an independent test.
Compare mobile data options
The table shows each provider’s cheapest plan, a 5 GB plan and the shortest unlimited plan, each with the date it was checked.
Yesim
CHINA- 1 GB, 30 days
- 5 GB, 30 days: $13.20
- Unlimited, 5 days: $21.60
- Speed may be reduced under the network’s fair-use policy.
Airalo
CHINA- 1 GB, 3 days
- 5 GB, 30 days: $14.50
- Unlimited, 5 days: $19.00
- Throttled to 1 Mbps after 3 GB per day.
Saily
CHINA- 1 GB, 7 days
- 5 GB, 30 days: $15.99
- Unlimited, 5 days: $22.99
- 5 GB per day at full speed, then up to 1 Mbps.
Check eSIM compatibility, carrier unlock, coverage and when validity starts. Buy and install while you have reliable Wi-Fi. Prices in US dollars, from each provider’s China page on the date shown. They change often.
Agree on another channel
Tell the people who expect your messages how else to reach you: an email address or the phone number on your roaming plan. Write down their numbers outside the app.
Verification codes
Signal links your account to a phone number. If you keep your home SIM active, it can still receive codes while an eSIM handles data. Check your own carrier’s roaming terms before you rely on that.
Do this before you fly
- Update Signal and check that you can sign in.
- Confirm that account recovery works without your home SIM if you plan to swap it.
- Save bookings, addresses and key contacts offline.
- Read the routing notes of the data plan you actually buy.
What NordVPN says about China
NordVPN publishes a support page about connecting from China. Read it before you rely on any VPN: availability there is uncertain and can change without notice. Install and sign in before you leave home.
See NordVPNNordVPN China support ↗ · Reviewed Nov 5, 2026. No VPN is guaranteed to work in China. Follow local law and the provider’s own guidance.
Questions before you go
Is Signal blocked in China?
Wikipedia’s list shows it blocked since 16 March 2021.
What can I use instead?
Pick a channel your contacts already have and test it before you fly.
Do I need to keep my home SIM?
It helps with verification codes, subject to your carrier’s roaming terms.
Sources & review notes
- Wikipedia: Websites blocked in mainland China ↗ · Reviewed
- Airalo China help ↗ · Reviewed
- NordVPN China support ↗ · Reviewed
Product prices use their own dates. Provider statements are not independent connection tests. Recheck time-sensitive details before booking.