And that’s all the details that was shared by @OnLeaks. But he also poses an important question. With the sales of the iPhone 12 mini being what it is, will Sony still go ahead with making an Xperia Compact device? That really depends on what the company plans to pack in the phone.
Sony Xperia Compact devices of old mostly shared the same hardware of their larger siblings. The downgrades to make up for the smaller size are usually negligible, like 1GB less RAM, or a slightly smaller battery. So long as it doesn’t exclude a major feature the way the iPhone 12 mini missed out on the sensor-shift tech in the Pro Max, the Xperia Compact would probably be fine.