Is the Catiga CS-229 good for a first graphing calculator?

Yes. It covers graphing, scientific and statistics functions in a simple layout, which suits students learning to use a graphing calculator. It is a reasonable first buy if exam rules do not require a specific brand.

Can I use it on the SAT or ACT?

Check the current rules before test day. Those exams approve specific models from TI, Casio, HP and a few others, and the Catiga CS-229 is not on the usual approved lists.

How does it compare with a TI-84?

The TI-84 has a higher-resolution screen, far more apps and tutorials, and broad exam approval. The Catiga covers the core graphing and scientific functions at a much lower cost, with a coarser display and less support.

What functions does it support?

It handles graphing, scientific calculations, statistics and more, with over 280 functions across 10 modes. That covers most high school and introductory college math.

Does it come with a cable or batteries?

Check the box contents with the seller before buying. Bundles vary, so confirm whether batteries and a link cable are included.

Is the screen big enough to read graphs?

The 70x70 LCD can show a graph and its function together, but the resolution is low, so fine curves look blocky. It is readable for classwork but not as sharp as premium models.