The internal display is nothing to write home about. It measures only 1.5 inches diagonally and supports 65,536 colors, resulting in a lackluster display. We were glad that Verizon didn't impose its custom menu style in the phone however, as we definitely prefer LG's more user-friendly menu navigation. There are two menu styles to choose from, icon or list view, and you can adjust the backlight timer of the main display as well as the keypad. You can also adjust the phone's contrast, as well as the font sizes for the calling digits, the text editor, and the menu font.
We're fans of the VX3400's keypad, as the keys were well spaced and raised enough above the surface to allow for easy dialing and navigation. When pressed, the keys had a nice rubberized give, yielding easily to pressure. The navigation array consists of the regular two soft keys, a four-way toggle with middle OK key, a Send key, a Clear key, and an End/Power key. The four-way toggle also doubles as shortcuts to the speakerphone, the calendar, messages, and the sound settings.
The VX3400 has a 300-entry address book, and each entry can accommodate up to five numbers You can assign callers to a group and pair them with one of 40 polyphonic ring tones or one of 43 message alert tones. There's photo caller ID as well, but you'll have to use one of the included clip-art icons, and the image shows only on the internal display. The rest of the phone's features are pretty bare-bones. There's a vibrate mode, text and picture messaging, a schedule, an alarm clock, voice memo recording, a notepad, a tip calculator, a calculator, a world clock, a unit converter, and a melody composer that you can use to create your own ring tone. The lack of Web browser was a little frustrating since it's a feature that many other basic phones have.
Personalization options are rather limited with the VX3400; there doesn't seem to be a way for you to download more wallpaper and themes. You can choose to have different wallpapers for when the phone powers on or off, analog or digital clock formats on the main display, and one of four different color themes.
We tested the dual-band tri-mode (CDMA 850/1900, AMPS 850) LG VX3400 in San Francisco using Verizon's network. The call quality was crisp and clear, and callers reported the same thing. It was still obvious that the calls were from a cell phone due to a slight static sound, but it wasn't that big a deal.
The VX3400 has a rated talk time of 4 hours, while our tests showed a talk time of 3 hours and 43 minutes. It has a promised standby time of 7 days. According to FCC radiation tests, the LG VX3400 has a digital SAR rating of 0.963 watts per kilogram.