Short verdict
Choose Shopify if selling products online is the main job and you want fewer technical responsibilities. Choose WordPress if content, SEO flexibility and ownership are more important, especially when ecommerce is only part of the website.
Pricing considerations
Shopify has clearer packaged pricing, but app spend, payment fees and premium themes can raise the real cost quickly. WordPress can look cheaper at first because the software is free, yet hosting, development, maintenance and plugin costs often make the true operating cost less predictable.
Ease of use comparison
Shopify is easier for day-to-day ecommerce management because the hosting and store infrastructure are already packaged. WordPress is easier to shape editorially, but it asks more from the business in plugin discipline, maintenance and stack management.
Implementation and migration comparison
Shopify is usually faster to launch for product-led stores. WordPress implementations can still be efficient, but they become more complex when ecommerce, custom design and plugin dependencies all need to work together. Migration risk is meaningful in both directions because products, content, redirects and analytics all need careful handling.
UK small business suitability
Shopify is especially strong for UK small businesses that want a dependable store platform with fewer technical choices. WordPress is stronger for UK businesses that need a content-first website and want ecommerce to sit inside a broader publishing stack.