以前の比較表 [srad.jp]を引っ張っときますね。 LIFEBOOK U 171x133x32, 580g, 4h --------------------------------------------- KOJINSHA SA SA1F00A 218x163x33, 960g, 5h libretto U100 210x165x34, 999g, 5.3h libretto 50 210x115x34, 850g, 1.5h MURAMASA PC-CV50F 225x158x30, 880g, 3.5h CF-R4 229x184x42, 999g, 9h LOOX P70R 232x167x35, 990g, 4h VAIO VGN-U50 167x108x27, 550g, 5.5h InterLink