Processor in Sony Vaio VGN-SZ220 is Core Duo T2400 1.83GHz and in Acer TravelMate 4202WLMI is Core Duo T2300 1.6GHz.
We like more Acer TravelMate 4202WLMI 15.4" inch screen than Sony Vaio VGN-SZ220's 13.3" size.
Both laptops have maximum declared screen resolution 1280x800.
If you want to run many programs at once 1GB of RAM on this Sony Vaio VGN-SZ220 is better than Acer TravelMate 4202WLMI with 0.5GB.
Both Sony Vaio VGN-SZ220 and Acer TravelMate 4202WLMI on our test had same amount of maximum RAM memory they can support - 2GB.
Sony Vaio VGN-SZ220 weights 1.86kg, but Acer TravelMate 4202WLMI isn't really suitable for travellers with 3kg.
Video card inside Vaio VGN-SZ220 is Nvidia Go 7400 and other laptop has Intel 950 inside.
Sony Vaio VGN-SZ220 seems to be better for gamers with 128MB of dedicated video memory.
More storage for multimedia were available at Sony Vaio VGN-SZ220 (more conforable space on hard drive).
For some devices like mobile phones and cameras, you might need bluetooth which is internaly built only in Acer TravelMate 4202WLMI.
If you have infrared enabled devices if you buy Sony Vaio VGN-SZ220 you won't be able to communicate with them.
No firewire on Acer TravelMate 4202WLMI unable them to connect to some camcorders.
If you sometimes travel to destination without broadband internet connection, you don't have to worry since laptops have internal modems.
Note that Sony Vaio VGN-SZ220 cannot perform 1Gbit/s connection on fast networks, it will work on those, but with speed of 100Mbit/s.
Both notebooks have cardreader.
None has DVI output so you cannot connect them to some new monitors.
Advantage of Acer TravelMate 4202WLMI is existance of TV output.
Internet telephony is better with web camera but any of these notebooks hasn't one inside.
Operating system on Sony Vaio VGN-SZ220 is XP Media Center and on Acer TravelMate 4202WLMI is XP Pro.
Only Sony Vaio VGN-SZ220 has special software pack : Works 8.5.
More
Laptops comparisons:
Acer TravelMate 2414NWLMi vs Acer TravelMate 4652LMi.
Sony Vaio VGN-AR190G vs Sony Vaio VGN-SZ220.
Acer TravelMate 2414NWLMi vs BenQ S53W.G01.
Acer Aspire 9512WSMi Gamer vs Acer TravelMate 2414NWLMi.
Sony Vaio VGN-FE770G vs Sony Vaio VGN-FS980.
Acer TravelMate 8204WLMI vs Asus Z 9266 VA.
Sony Vaio VGN-AR190G vs HP Pavilion dv9056ea.
Acer TravelMate 4652LMi vs Fujitsu-Siemens Amilo A1655G.
Fujitsu-Siemens Amilo M3438G vs Toshiba Qosmio G35-AV660.
Acer TravelMate 4202WLMI vs Samsung M700-1860.
Acer TravelMate 8204WLMI vs BenQ R23.G13.
Gateway MP8708 vs Asus Z 9266 VA.
Acer Travelmate 2312LM vs Toshiba Satellite A105-S4384.
Acer TravelMate 2414NWLMi vs Toshiba Satellite L100-1200.