Interesting results shown in the comparison in the linked article. In quite a few cases a single import, with duty and shipping to SA, is cheaper than Takealot in South Africa. I’m wondering how this will improve when Amazon opens its own warehouse in South Africa later in 2023, because then it won’t be individual shipping imports any more.
But the big takeaway is that you do need to check, and weigh it up also with whether you may ever need warranty support. There are also many items you just cannot find at all inside South Africa.
See https://mybroadband.co.za/news/gadgets/497469-takealot-versus-amazon-tech-price-showdown.html