Sound and Communication
The S40's audio capabilities were limited by modern standards, with neither a loudspeaker nor a 3.5mm headphone jack. It supported monophonic ringtones and had a built-in composer for creating custom tones, adding a personal touch to the user’s experience. Communication technology remained basic, as the phone lacked Bluetooth, WLAN, and GPS positioning. However, it did feature an infrared port, which allowed users to share data with compatible devices, albeit slowly.