There's almost no reason to get a Pavilion x360 15 when the Envy x360 15 is now available for around the same price. Unlike on most convertible laptops, the RAM here is not soldered and can be upgraded by the end user.
https://www.notebookcheck.net/HP-Envy-x360-15-2-in-1-with-Core-i5-1135G7-CPU-upgradeable-8-GB-RAM-and-1080p-IPS-touchscreen-now-on-sale-for-609-USD.606799.0.html