China Unicom Sim Card 5G Network 20GB Data, 300 Minutes Talk Plus 300 Texts

What you get with this China Unicom SIM

This SIM is built for Mainland China cellular use and includes a bundle of:

• Data: 20GB (5G available on supported devices and 4G on supported devices)
• Talk: 300 minutes
• Text: 300 domestic text messages
• Phone number: a Chinese phone number included with the SIM

It is a physical SIM (not eSIM). The plan is extendable and rechargeable, but you need to track the initial validity window and activation timing.

Network and compatibility: the details that matter

To use the cellular services properly, you will want to confirm three things: SIM type, phone unlocking, and supported bands.

Physical SIM slot and unlocked phone

• Your phone must have a physical SIM card slot.
• Your phone must be unlocked. If you bought a carrier-locked device on a contract, it may stay locked even after the contract ends.

Supported bands

• 5G: band 78
• 4G: band 3

If your device supports these bands and you have an unlocked phone, this SIM is designed to work broadly across many unlocked devices.

Potential calling compatibility caveat

There is a specific caution for Google Pixel series phones where software compatibility may prevent some calling features from working correctly. If you are using a Pixel, it is worth double-checking compatibility before relying on this SIM for calls.

Activation and timing: plan ahead to avoid delays

Activation is not a “swap and go” process. You should be prepared to submit required information to activate the SIM, including an included phone number from the shipment, your Amazon order number, and a passport photo page copy for real-name registration requirements. You can also choose a requested activation date.

There are also time constraints to keep in mind:

• You should not buy the SIM more than 45 days before your arrival in China.
• The plan comes with an initial validity of 30 days, and it can be extended.

Once activated, some buyers report being able to use services shortly after arrival by turning the phone on and letting it connect.

Do you need a VPN for China?

The SIM itself does not include a VPN, but VPN access may be useful in Mainland China because some foreign social websites and apps can be blocked. If your travel needs include access to those services, plan for a VPN setup before or during your trip.

Pros and practical use cases

Best for

• Travelers who want a Mainland China phone number along with data for everyday tasks
• Short-to-medium trips where 20GB is enough for maps, translation, email, messaging, and browsing
• People traveling with an unlocked phone that supports the required SIM type and bands

Who should avoid it

• Anyone whose phone does not have a physical SIM slot or cannot be unlocked
• Travelers expecting coverage outside Mainland China
• Pixel users who need reliable calling functionality and have not confirmed compatibility

Is this China Unicom SIM worth it?

This SIM tends to make the most sense if you value having a local Chinese phone number and you are comfortable with activation requirements. If you are ready to handle passport-based activation and you already have an unlocked, band-compatible phone, the bundled data, minutes, and texts can offer good value for a China-focused trip. If your biggest priority is the lowest setup friction, or you need service outside Mainland China, you may want to look for a different option designed for broader roaming coverage or simpler activation.

Price and availability

Check the latest price and ordering options for the SIM by using the link below.

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