Processor in Acer TravelMate 4202WLMI is Core Duo T2300 1.6GHz, and in laptop Sony Vaio VGN-FE31Z is Core 2 Duo T5600 1.83GHz.
Both models have the same 15.4" screen size.
Both laptops have maximum declared screen resolution 1280x800.
For users who likes more memory Sony Vaio VGN-FE31Z with 2GB is better than Acer TravelMate 4202WLMI with 0.5GB of memory.
On both laptops in use is DDR2 memory.
Both laptop models are allowing 3 running without power supply (on internall accumulator).
Sony Vaio VGN-FE31Z could be described as a bit less heavier with its 2.82kg, comparing to 3kg other laptop has.
Video card inside TravelMate 4202WLMI is Intel 950 and other laptop has Nvidia Go 7600 inside.
Sony Vaio VGN-FE31Z had more hard drive space (200 GB) - definetly something which users who think to hold movies on it will certainly like.
Bluetooth exists only on Sony Vaio VGN-FE31Z model and you might need it for pictures on your camera or mobile phone.
Infrared isn't available on both models and therefore they cannot communicate with some small devices.
Only Sony Vaio VGN-FE31Z have firewire needed for some camcorders.
Modem is built in both laptops.
If you need fast internet connection of 1Gbit/s note that only Acer TravelMate 4202WLMI can support it. Sony Vaio VGN-FE31Z will run 100Mbit/s on faster connection.
Both laptops have cardreader. At Acer TravelMate 4202WLMI it reads 5 different card types and cardreader in Sony Vaio VGN-FE31Z supports 1 different card types.
It is bad that these notebooks cannot be connected to some new TFT monitors since they don't have DVI.
Advantage of Acer TravelMate 4202WLMI is existance of TV output.
Both laptops have 3 USB ports each.
Only Sony Vaio VGN-FE31Z has web camera useful for video conferencing.
Operating system on TravelMate 4202WLMI is XP Pro and on Vaio VGN-FE31Z is XP Media Center.
Only Sony Vaio VGN-FE31Z has some additional software : Adobe Acrobat Elements 7.0, Works, Photshop Elements, DV Gate Plus, WinDVD, Roxio Digital Media SE7, Norton Internet Security 2006, Skype 2,0.
More
Laptops comparisons:
Gateway MX6912 vs Panasonic Toughbook CF-74.
Acer TravelMate 4202WLMI vs Sony Vaio VGN-FE31Z.
Gateway MP8708 vs BenQ S53W.G01.
Gateway MX3414 vs Acer Travelmate 2312LM.
Asus Z 9274 VM vs BenQ R55.G24.
Gateway MX6912 vs Panasonic Toughbook CG-18.
Microstar 262B vs Sony Vaio VGN-FE31Z.
Gateway MP8708 vs Samsung X11-T5500 CeSeba.
BenQ R23.G13 vs Panasonic Toughbook CF-74.
Acer TravelMate 8204WLMI vs Asus Z 9266 VA.
Gateway MX6455 vs Fujitsu-Siemens Amilo Xi 1546.
Acer TravelMate 8204WLMI vs Microstar 262B.
HP dv8301nr vs Samsung M700-1860.
Gateway MX6448 vs Toshiba Qosmio G35-AV660.
Asus Z 9274 VM vs Samsung X11-T5500 CeSeba.
HP Pavilion dv6108nr vs Panasonic Toughbook CG-18.