Samsung always kept an eye on their entry level segment. Their Galaxy A10 was the best seller Android smartphone of 2019, followed by Galaxy A50. They released a successor to the Galaxy A10 - Galaxy A10s 7 months later.
Galaxy A10, the best Android seller of 2019
Galaxy A10s with missing features and unusual price
The Galaxy A10s didn't pick up as much hype as the Galaxy A10, as the price is higher, no significant upgrades but only a fingerprint sensor and slightly larger battery. You get a lot of downgrades here and there, like the slower charging and the slower chipset. You also get a stripped down One UI Core with missing features like Secure Folder and Samsung Knox instead of the regular One UI.
Samsung has failed to justify the market with the Galaxy A10s, and so the Galaxy A11 and the Galaxy A12. The Galaxy A10 sold very well but they misjustified what users wanted, so the successors didn't sell well, and the Galaxy A10s' stocks are still not sold out after 1 year of release.
