Siri birthday reminder can specify someone.

Of course. According to official website query of Apple's mobile phone, users only need to add birthday events and set birthday reminders to say the name and date of their birthdays. As an intelligent voice assistant of Apple's mobile phone, Siri can complete the task of making birthday names and greetings. Siri can support natural language input, and can call the weather forecast, schedule, search data and other applications that come with the system. It can also learn new sounds and intonations continuously and provide conversational response.