To tell you responsibly, Vodafone is an operator (similar to China Mobile), but it is better than China Mobile. A company of Vodafone is in charge of telecommunication networks in 26 European countries. Then Vodafone cooperated with many large international enterprises to customize mobile terminals (such as the mobile phones we use) from them. In this way, when the company is completed, it will be sent to Vodafone as required. As for whose trademark is printed on the mobile phone, it is a matter for them to negotiate. Vodafone has customized the mobile phones of many enterprises, including Huawei at home and Ericsson Sharp Siemens, Nokia and Samsung abroad. Some trademarks are only printed by Vodafone.

So, your mobile phone is manufactured by Sharp for Vodafone, and you can say whatever brand you like.