The Samsung Z400 comes with the smoothest slide opening mechanism in a choice of silver or black colour which gives the phone an extra refined look. The handset has two cameras (0.3 megapixels) for video calling and a high quality (2 megapixel) CMOS camera for still shots. In good light the camera delivers excellent results. The display is very high quality with 262k colours and 320 x 240 pixels and the music player supports a wide range of formats including MP3, WMA and AAC and is stereo. Memory capacity is 30 Mbytes with support for a memory card. More features of Samsung Z400 include a document viewer with support for common document formats including Word and Excel. The document viewer allows you to read files in Excel, PPT & Word format as well as HTML, PDF & text files. Weighing just 107 grams & measuring 96.7 x 47.8 x 18.8 mm provides the user with a solid weight handset but in a slim size. The handset is extremely useable & has easy to access functions and a clear cut keypad. The WAP internet browser allows you to access the internet from your mobile phone.

The Samsung Z400 mobile phone comes with good messaging service & makes sure that you don't loose contact with your friends & family. You can use SMS, multimedia messaging (MMS) & email to stay in touch with others. The Samsung Z400 video feature lets you enjoy video recording, video calling & video messaging. You can record your video & either sends it to others via email or multimedia messaging save it on the phones memory or simply play it back on the Z400. The phone book can be updated easily & you can add, edit & remove contacts details. The photo caller ID feature allows assigning a photo & text to a contact in your phone book. In all, the Z400 is one of Samsung's best 3G mobile phones.