Here I got some models of FMV-Biblo LOOX series comparing side-by-side, I made this because I was confused about their differences (of which I marked by bold characters).

Model Name / Spec	Fujitsu FMV-Biblo LOOX S5/53W, LOOX S5/53	Fujitsu FMV-Biblo LOOX T5/53W, LOOX T5/53	Fujitsu FMV-Biblo LOOX S7/60W, LOOX S7/60	Fujitsu FMV-Biblo LOOX T7/63W, LOOX T7/63
Part Number	FMVLS553	FMVLT5533	FMVLS760W3/FMVLS7603	FMVLT763W3/FMVLT7633
CPU	Transmeta Crusoe TM5400 533MHz	Transmeta Crusoe TM5600 533MHz	Transmeta Crusoe TM5400 600MHz	Transmeta Crusoe TM5600 633MHz
Cache memory	L1 128KB, L2 256KB	L1 128KB, L2 512KB	L1 128KB, L2 256KB	L1 128KB, L2 512KB
BIOS ROM	2MB (flash ROM)	2MB (flash ROM)	2MB (flash ROM)	2MB (flash ROM)
Chipset	Unknown	Unknown	Unknown	Unknown
Memory* (Std) 1 memory slot avai.	128MB SDRAMs (muDIMM/PC133)	128MB SDRAMs (muDIMM/PC133)	128MB SDRAMs (muDIMM)	128MB SDRAMs (muDIMM)
Internal display	8.8" TFT color LCD with FL back light 1024x512 dots 16,770,000 colors Dot pitch 0.195mm	10" TFT color LCD with FL back light 1280x600 dots 16,770,000 colors Dot pitch 0.180mm	8.8" TFT color LCD with FL back light 1024x512 dots 16,770,000 colors Dot pitch 0.195mm	10" TFT color LCD with FL back light 1280x600 dots 16,770,000 colors Dot pitch 0.180mm
External display	No Data	No Data	A maximum of 1280x1024 dots, 16,770,000 colors	A maximum of 1280x1024 dots, 16,770,000 colors
Graphics Accelerator, Video RAM	ATI RAGETM Mobility-M (3D accelerator built-in), 4MB	ATI RAGETM Mobility-M (3D accelerator built-in), 4MB	ATI RAGETM Mobility-M (3D accelerator built-in), 4MB	ATI RAGETM Mobility-M (3D accelerator built-in), 4MB
Keyboard (Japanese keyboard)	OADG conformity 86 key (with a Windows-key application key) [16mm of key pitch abbreviation, and keystroke 2mm]	OADG conformity 87 key (with a Windows-key application key) [key pitch 17mm / keystroke 2mm]	OADG conformity 86 key (with a Windows-key application key) [16mm of key pitch abbreviation, and keystroke 2mm]	OADG conformity 87 key (with a Windows-key application key) [Key pitch 17mm / keystroke 2mm]
Pointing device, One-touch button	Standard built-in (quick point), 1 programmable button	Standard built-in (quick point), 4 programmable buttons (operates also as a music CD/DVD operation buttons)	Standard built-in (quick point), 1 programmable button	Standard built-in (quick point), 4 programmable buttons (operates also as a music CD/DVD operation buttons)
Hard disk, Default S/W occupancy	10GB (Ultra DMA/33), 4.8 GB	10GB (Ultra DMA/33), 3.1 GB	15GB(Ultra DMA/33)	15GB(Ultra DMA/33)
CD-ROM Drive, External Floppy Drive	External CD-ROM drive * option, 3.5 inch FDD unit (USB) [2 Mode] * option (*5)	DVD-ROM (DVD-ROM : a maximum of 8X, CD-ROM: a maximum of 24X), 3.5 inch FDD unit (USB) [2 Mode] * option (*5)	External CD-ROM drive * option, 3.5 inch FDD unit (USB) [2 Mode] * option (*5)	DVD-ROM (DVD-ROM : a maximum of 8X, CD-ROM: a maximum of 24X), 3.5 inch FDD unit (USB) [2 Mode] * option (*5)
Wireless Communication*	It is H"IN module built-in (64kbps best effort system data-communications correspondence)	A cellular phone / PHS standard appending about the USB cable for cellular-phone connection	It is H"IN module built-in (64kbps best effort system data-communications correspondence)	-
Modem*	V.90 56Kbps, FAX 14.4Kbps	V.90 56Kbps, FAX 14.4Kbps	V.90 56Kbps, FAX 14.4Kbps	V.90 56Kbps, FAX 14.4Kbps
Sound	An AC-Link connection sound tip (16-bit stereo PCM), software Wavetable function built-in, a built-in speaker (monophonic recording).	An AC-Link connection sound tip (16-bit stereo PCM), software Wavetable function built-in, a built-in speaker (stereo)	An AC-Link connection sound tip (16-bit stereo PCM), Software Wave Table function built-in, a built-in speaker (stereo)	An AC-Link connection sound tip (16-bit stereo PCM), Software Wave Table function built-in, a built-in speaker (stereo)
PC card slot (PCMCIA)	Type I/IIx1 slot CardBus correspondence	Type I/IIx1 slot CardBus correspondence	Type I/IIx1 slot CardBus correspondence	Type I/IIx1 slot CardBus correspondence
Interface	USBx2, Microphone input, Headphone output	NTSCx1,IEEE1394(S400 4 pins) x1, Line Out, USBx2, Microphone input, Headphone output	An external display (The terminal only for CRT conversion cable, USBx2, Microphone input, Line Out, Headphone output, modem (RJ11)	An external display (The terminal only for CRT conversion cable, IEEE1394(S400 4 pins), Line Out, video output (S terminal), USBx2, Microphone input, Headphone output, modem (RJ11)
Li-Ion Battery 10.8V (Std. 1800mAh, Ext, 3600mAh)	Usage time: Std. 3.7(W), 4.0 hours, Ext. 7.5(W), 8.0 hours (with power-saving Charge time: Std. About 2 hours / Ext. about 3.5 hours	Usage time: Std. 3.4(W), 3.6 hours, Ext. 7.0(W), 7.3 hours (with power-saving Charge time: Std. About 2 hours / Ext. about 3.5 hours	Usage time: Std. 3.7(W), 4.0 hours, Ext. 7.5(W), 8.0 hours (with power-saving Charge time: Std. About 2 hours / Ext. about 3.5 hours	Usage time: Std. 3.4(W), 3.6 hours, Ext. 7.0(W), 7.3 hours (with power-saving Charge time: Std. About 2 hours / Ext. about 3.5 hours
AC Adaptor	AC 100V-240V, 50/60Hz	AC 100V-240V, 50/60Hz	AC 100V-240V, 50/60Hz	AC 100V-240V, 50/60Hz
Power Consumption (Max)	About 35W, S classification 0.0010	About 35W, S classification 0.0010	About 35W, S classification 0.0010	About 35W, S classification 0.0010
Environmental conditions	Temperature of 5-35 degrees C, 20 - 80% of humidity	Temperature of 5-35 degrees C, 20 - 80% of humidity	Temperature of 5-35 degrees C, 20 - 80% of humidity	Temperature of 5-35 degrees C, 20 - 80% of humidity
Approx.	243mm(width)x151mm(depth)x30mm(height)	264mm(width) x183mm(depth)x31.5mm(height)	243mm(width)x151mm(depth)x30mm(height)	264mm(width) x183mm(depth)x31.5mm(height)
Weight	About 990g(W) 980g (with Std. battery)	About 1.5kg (with Std. battery)	About 990g(W) 980g (with Std. battery)	About 1.5kg (with Std. battery)
Default OS	Microsoft Windows Millennium Edition	Microsoft Windows Millennium Edition	Microsoft Windows Millennium Edition	Microsoft Windows Millennium Edition
Annoucement Date	January, 2001	January, 2001	26 May, 2001	26 May, 2001

Fujitsu Biblo LOOX S8/70(W), T8/80(W), S9/70(W), T9/80(M,W)
Toshiba Libretto L series