The Google Pixel Watch 3 allows you to answer incoming calls and initiate calls by connecting to your phone via Bluetooth. Here are some important details:

- Call management: the Pixel Watch 3 supports answering and starting calls via Bluetooth as long as the phone is nearby and connected.
- Speaker: The watch has an inbuilt speaker that can be used for calls. However, there is no specific information on how loud the speaker is. However, it is generally the case that smartwatch speakers are suitable for short conversations, but may not be as loud as a normal phone.

It is important to note that speaker volume can be subjective and may vary depending on the environment. However, if you need clear and reliable call management, the Pixel Watch 3 should meet your needs.