Performance
Under the hood, the Philips S309 is powered by a dual-core 1.0 GHz processor, which aligns with its entry-level positioning. The device includes 1GB of RAM, which, while adequate for basic operations such as messaging, web browsing, and light app usage, may struggle with more demanding applications or multitasking. The phone originally runs on Android 5.1 Lollipop, an operating system that was current for the time, providing essential security features and app support but now lacks compatibility with newer apps and updates.