The DX7440 has a much larger LCD screen (2.2") which will make menu navigation much easier than its counterpart. The megapixel count is still 4.0 and the optical zoom is the same at 4x, but the digital zoom has gone up from 3.8x to 4x. The DX7440 also offers 16 scene modes, 5 colour modes plus movie mode (all listed below) so this camera offers lots of creative possibilities.

Specifications

lens / zoom                33 mm - 132 mm (4x) (dig: 4x)
focus / macro            auto / 50 cm / 10cm
metering mode           multi-pattern, center-weighted, center-spot
aperture                    auto | manual / F2.8 - F5.6 (W) / F4.8 - F9.5 (T)
white balance           auto | manual - 3 presets
shutter                      auto | manual / 64s - 1/2000s
exposure                  +/- 2EV in 0.3EV steps
flash / mode              internal - 4 modes / 0.6m - 4m
viewfinder                optical
iso ratings                 80, 100, 200, 400, 800
image size                2304x1728 / 2304x1536 / 2048x1536 / 1656x1242 /1200x900
image format             jpeg (exif 2.2)
image compr.  
lag/cycle times  
remote control           self timer 10s
video options             mpeg4 640x480 (13fps) / 320x240 (24fps)
audio options             available
connectivity               usb 2.0 / video (NTSC / PAL) / Kodak EasyShare camera dock 6000 and Kodak
                                  EasyShare printer dock
storage                     32MB internal, MMC / SD slot
platform                     Windows 98/2000/ME/XP, Mac OS 8.6/9.x, OS X

Review

Novices will find the DX7440 easy to use - large LCD display, scene modes, etc. Experienced photographers will appreciate the manual modes and the very fast 0.2 seconds click-to-capture. Another big plus is the 4x optical zoom. This camera is fantastic!
Source: http://www.digital-cameras.info/