@ronaldallanp there is no difference how you name it shop.site.com or buy.site.com or site.com/shop
the main thing here what content and what distribution you will make... you are mostly writing about androids right ? so attach links with images to amazon phones and keep pushing great content & video reviews specially.
here is a crazy stupid idea to you.
1 buy best phone (or take from your friend) you like on amazon or whereever.
2 record best possible video review about it.
3 attach buy button to your page, so a reader can buy it.
4 repeat process.
I am actually leading creation of affiliate network to do that better, check it out https://sellby.me mostly for digital product, but you can do that with amazon now.