Data scraping from a website

I need all data that starts from https://www.gsmarena.com/makers.php3, walks through every brand, opens each handset page and captures the complete specification table exactly as shown. The end-product I expect is:

• A clean JSON file data where every phone is an object containing every available field (model name, release date, dimensions, display, chipset, camera, battery—everything published on the spec sheet).

Please make sure the scraper respects polite crawling rules, handles pagination and brand/model edge cases gracefully, and returns UTF-8 encoded text. If anything on the site requires minor waits or retries, can block your way.

I will test JSON data and if validates proper data, the job is done.