Audio and Connectivity
Audio features include the ability to use a loudspeaker and support for vibration alerts, alongside downloadable polyphonic and MP3 ringtones—common features during its era. Notably, the phone lacks a 3.5mm headphone jack, aligning with its minimalist design philosophy. In terms of connectivity, the E900 offers Bluetooth 1.2 with A2DP support, facilitating wireless file sharing and connectivity to audio accessories. However, it does not support advanced networking options like WLAN or GPS. The reliance on a proprietary USB connection reflects the early design constraints before the adoption of universal standards.