Samsung smartphones, particularly older models like the Galaxy S6, S7, and A series, can have issues with the HTML5 input type="number" field, where the period (decimal point) is missing. This issue is often linked to the browser version or locale settings. It’s more common in locales using commas for decimals. To fix this, update the browser or change the locale to one that uses a period (e.g., US English) or switch to a different browser.