TYWE1S-IPEX has an external antenna interface, and TYWE1S has reserved pads and no interface. They can actually be transformed into each other and need to adjust the position of a serial resistor. TYWE1S data manual: https://docs.tuya.com/en/iot/device-development/module/wifi-module/wifie1smodule?id=K9605thnvg3e7, there are ways to switch between them. If it is mass production, it is recommended to select the appropriate module to avoid increasing the process flow.