Motorola's Krave ZN4 is supported on the Verizon Wireless network and features two layers of touch—on the interactive clear flip outside and a full touch screen inside. Without opening the phone, the clear flip gives users one-touch access to various features and services. The flip design also helps cut down on touch-screen wear and comes with a side lock key so that the phone is not accidentally turned on.

Verizon Wireless services provide the bulk of the phone's bells and whistles, such as a dedicated voice recognition key, the Verizon Visual Voice Mail, a virtual landscape QWERTY keypad, haptic feedback and direct access to personal e-mail accounts with mobile e-mail from Verizon.

Fancier features include Verizon's GPS system, the VZ Navigator. Also included is Verizon's V Cast Mobile TV, which includes shows from CBS, Comedy Central, ESPN, Fox, MTV, NBC and Nickelodeon. Verizon's V Cast Video service displays clips in landscape mode on a 2.8-inch color display. V Cast Video also has "snack-sized" video clips, such as sports highlights, breaking news, entertainment and weather.

V Cast Music with Rhapsody lets users pick from more than 5 million songs. Users can buy full songs over the air; download master copies of songs to their PCs free of digital rights management software; and sync favorite tracks, albums and playlists from their PCs to their phones using a USB cable, which is sold separately.

The ZN4 supports Bluetooth stereo technology, a 3.5mm headset jack and up to 8 GB microSD optional removable memory for more music, photos and video storage. The phone also comes with a touch-controlled 2.0-megapixel camera.