Foreign engineers and technical teams visiting Chinese factories need mobile data for more than messaging. Typical work includes opening drawings, checking specifications, sharing test results, joining technical calls, uploading defect photos and connecting a laptop through a mobile hotspot.
Why factory Wi-Fi is not enough
Guest Wi-Fi may not cover production lines, warehouses or outdoor testing areas. Access credentials can also take time to arrange. Each key team member should have an independent data connection so the group can continue working if members separate or the factory network becomes unavailable.
Recommended team configuration
Assign each QR code to one named device before departure. Record the employee name, phone model, data allowance and installation status. Do not assume that one QR code can be installed on multiple phones. Keep hotspot use as a backup for laptops or devices that do not support eSIM.
How much data is practical?
5GB works for short visits focused on messages, documents and compressed photos. 10GB is better for repeated file sharing and technical calls. 20GB is recommended for video demonstrations, remote testing, hotspot work and longer multi-factory schedules.
Pre-departure checks
Confirm that every phone is eSIM-compatible and unlocked. Install plans over stable Wi-Fi, label each line clearly and give the team a simple troubleshooting sequence: select the correct data line, enable roaming if required, check APN, restart the phone and try automatic network selection.
Related guides: Independent eSIM or shared hotspot for a China sourcing team and Check eSIM compatibility before purchase.
Purchase links
Official website: ChinaCheckPick
Taobao store: Visit our Taobao store
China eSIM product: View the China eSIM plan