Uncle Moore's Law is Dead broke the news that both Sony PS6 and PS6 handheld console (codenamed Canis) have backward compatibility. Players can play PS4 and PS5 games on the PS6 console, so there will be thousands of games when PS6 is launched.

The news comes from an early PPT within AMD, which clearly mentions backward compatibility and several other key development processes:
Backwards compatibility based on RDNA5 architecture (PS4/PS5): Sony is carrying out an active and structured engineering project for the PS6 platform to ensure that it can run PS4 and PS5 games perfectly on the RDNA5 architecture
AI workflow (SR and VF): Using AI super-resolution (Super Resolution) technology as a system-level capability
Ray tracing (compatible with PS5): supports ray tracing and is compatible with PS5 ray tracing games
Low-power media playback: A low-power path specifically designed for video and media playback, which is crucial to improving the battery life of the PS6 handheld console.
Low-power SKU for EU: Sony is specifically addressing EU energy efficiency regulatory requirements
PS6 handheld console: not an independent product, but a part of the ecosystem
The source emphasized that the PS6 handheld console should not be regarded as an independent product category. It is essentially the mobile version of PS6, sharing the same ecosystem with the console.
It is estimated that the production cost of the PS6 handheld APU (accelerated processor) is about US$46.8, while the PS5 APU still costs US$81.5 even after process reduction. Despite the lower cost, the APU performance of the PS6 handheld console is expected to exceed that of the PS5. Therefore, there are also suggestions that Sony may launch a cheap version of the console based on the same APU (similar to the "PS6 S"), priced at around US$399, which should be very popular in the current economic environment.