If an iOS user I highly recommend using iOS shortcuts for this. See https://www.reddit.com/r/shortcuts/comments/9i71ek/new_camelcamelcamel_amazon_price_history_shortcut/?utm_source=share&utm_medium=ios_app&utm_name=iossmf Displays a nice little graph of price history and can be run directly from the Amazon app or from a copied URL.
It's a seamless experience if you start off at camelcamelcamel. You can search for the product, just like you do at Amazon, using key words, find out the prices, and shop directly to the Amazon app. You don't need to transfer any URLs. My way is:- 1) Go to camelcamelcamel.com 2) Search for a product at camelcamelcamel and instantly see price history 3) Decide to buy 4) Linked directly to Amazon site / app 5) Buy Yours is:- 1) Go to Amazon.co.uk or app 2) Search for a product 3) Decide to buy 4) Share link to Trycamel 5) Check price history 6) Decide to buy 7) link back to Web browser / Amazon app 8 ) Buy The steps of increase in both cases if you decide not to buy course. I'm happy to call it semantics over which is actually smoother, even though mine takes less steps.
The app makes it a seamless experience rather than manually transferring the URL to the browser.
The site is called - https://uk.camelcamelcamel.com/ Don't bother installing rubbish apps, that only open up websites anyways.