For about us page I put through some grammar checks

" SpartanGadget Store is the industry leader in stylish and thoughtful mobile accessories and smart gadgets. We use premium materials and functional designs to transform your phone into an accessory to boast about.

SpartanGadget Store ensures that every design is built to protect and complement your style. Whether equipped with military-grade shock-absorbing layers or co-molded 10-foot drop protection, our products are engineered to withstand drops from various heights on a range of surfaces, preserving your phone’s integrity. We offer a variety of case designs for the newest smartphones, including iPhone 13 Pro Max, iPhone 13 Pro, iPhone 13, and iPhone 13 Mini.

In addition to our attention to detail and design expertise, SpartanGadget Smartphone cases and screen protectors are all backed by reliable warranties. This guarantee reflects our confidence in our products. If you ever require a replacement, our dedicated customer service team is available to assist you!"

On the homepage you have screenshots of texts + product which is bad because your website has no SEO because you are missing H1 H2 H3 headers which help site crawlers find and categories your website. Is this a local store? I would add a address about the store again helps with SEO.

I don’t know the pricing of $14.90 seems off people tend to trust the 14.99 for example really minor detail though

I don’t know about the market to be honest its easier to buy these products on amazon or other sites. How are the sales?

Hi! Copywriter here :) Your website is easy to navigate, which is great! I’d change the headline & body text on your home page (the part beginning with “Why we are the best place…”). Right now, it’s focused on you, the brand, rather than the value you bring to your audience. It also sounds a bit sales-y/tacky and lacks authentic personality. The same goes for your About page.

I absolutely love how you have testimonials, and you have a great collection of products.