Is the G-Tab T9 PRO good for gaming?

Only for casual games. The octa-core chip and 4 GB of RAM handle simple titles, but demanding 3D games will stutter and the 1280x800 screen shows little detail.

Is 4 GB of RAM enough on Android 15?

For browsing, video and a few apps at once, yes. Switch between many apps or use split-screen heavily and you will see reloads and slowdowns.

How sharp is the 10.1-inch screen?

The 1280x800 IPS panel works out to roughly 149 pixels per inch, which is soft for small text. It is fine for video and reading at a distance.

How much storage do I actually get?

The tablet lists 128 GB, but Android and preinstalled apps take a share of it. Expect somewhat less free space for your own files and apps.

Does it come with a keyboard or stylus?

Nothing in the listed contents mentions a keyboard, stylus or case, so plan on buying accessories separately if you need them.

Is it a good tablet for kids?

It is a reasonable choice for light use, with a large screen and plenty of storage for videos and games. The modest RAM and low-resolution screen are the main limits.