Connectivity
In terms of connectivity, the E81 supports GSM and UMTS network bands, with 3G connectivity available at speeds up to 384 kbps. This made it suitable for essential web browsing and email functions via its WAP 2.0/xHTML browser. Bluetooth support facilitated the wireless exchange of data, a crucial feature for mid-2000s devices. However, the absence of Wi-Fi and GPS features indicates a focus on fundamental communication tasks over advanced data connectivity or location services.