The X series of laptops and convertible tablets are part of Lenovo's ThinkPad product line. The ThinkPad X series is traditionally the range best designed for mobile use, with ultraportable sizes and less power compared to the flagship ThinkPad T series. Formerly an IBM brand, Lenovo acquired the ThinkPad brand following its purchase of IBM's Personal Computing Division (PCD) in 2005.
IBM announced the ThinkPad X series (initially the X20) in September 2000 with the intention of providing "workers on the move with a better experience in extra-thin and extra-light mobile computing." The ThinkPad X series replaced both the 240 and 570 series during IBM's transition from numbered to letter series during the early 2000s. The first X Series laptops were "slimmer than a deck of cards" and "lighter than a half-gallon of milk", despite the presence of a 12.1-inch Thin-film transistor (TFT LCD) display. These design values—thin and light—continued to be integral to the ThinkPad X-series laptops' design and marketing, even after the purchase of IBM's Personal Computing Division by Lenovo. The last X-series ThinkPad released by IBM was the X41 tablet in 2004. Also, the first X-series ThinkPad released by Lenovo were the X60, X60s laptops and X60 tablet in 2005.
The ThinkPad X-series laptops from Lenovo were described by Trusted Reviews as "combining an ultraportable's weight and form factor with a durable design." The X-series laptop styles include traditional ultraportables, as well as convertible tablet designs. According to Lenovo, the ThinkPad X-series laptops include low power processors, offer long battery life, and several durability features such as a Roll Cage (Magnesium Frame around the Display), magnesium alloy covers, and a spill-resistant keyboard but currently lacks a replaceable battery and upgradable RAM slots.
IBM-branded models Source: IBM-branded ThinkPad X 2000–2004;Lenovo-branded ThinkPad X 2005-2008ScreensizeType43 screensX2*/X3*/X4*X6*(2006–2008)2000200120022003-2004200512.1" (4:3)StandardX20X21X22X23X24X30X31X32X60X61RotationconvertibleX41TabletX60TabletX61TabletSlimX20X21X40X41X60sX61sDocking stations compatibilityStandard Dock (2631)Port ReplicatorAllX31UltraBase X2 media sliceAllX24Dock II (2877)Port Replicator IIMini-Dock (2878)X31UltraBase media sliceX30, X31, X32X4 UltraBaseX40, X41X4 DockX40, X41, X41 TabletX6 UltraBaseX60, X60s, X61, X61sX6 Tablet UltraBaseX60 Tablet, X61 Tablet
2000
X20
The X20 was the first in IBM/Lenovo's long-standing X-series ultraportable line; the Celeron-based configurations had a thinner case. Processor: Intel Coppermine Mobile, Celeron (500MHz), or Pentium III (600MHz) Memory: 64128MiB, maximum of 320MiB (1 slot, 64MiB soldered) SDR Storage: IDE, 10 or 20GB1 GB = 10003 bytes Display: SVGA () or XGA () CCFL-backlit TN LCD Dimensions: 279 × 227 × 2530mm (or 2428mm with Celeron CPU) Mass/Weight: , or (with standard battery, and Pentium III or Celeron CPU)
2001
X21 Same specifications as the X20, except an optional 600 or 700MHz processor and more onboard RAM could be ordered.
X22 All new internal design, slim-version dropped, SVGA screen option dropped, Tualatin CPUs, faster (Mobility Radeon 7000 8MiB) GPU, Communications Daughter Card/CDC slot, optional FireWire and/or WiFi on some models, 133MHz FSB, maximum RAM increased to 640MiB. Processor: Intel Pentium III Mobile (733 or 800MHz) Memory: 128, 256, up to 640MiB (1 slot, 128MiB soldered) SDR; 8-chip 512MiB or 4-chip 128MiB modules only. Storage: IDE, 10 or 20GB Display: XGA () CCFL-backlit TN LCD Dimensions: 279 × 227 × 2530mm Mass/Weight: (with standard battery)
2002
X23 Same as the X22 but with faster processors (800 or 866MHz), bigger hard drives up to 30GB, Bluetooth, and the IBM Security Sub System on selected models.
X24 Same as the X23 with even faster processors: 1.06 to 1.13GHz.
X30 Full-powered successor to the X2x line with a completely redesigned case. However, they shared much of the technology. 830MG chipset with Intel Extreme Graphics GPU. Maximum of 1GiB RAM, thanks to two RAM slots. FireWire was now standard on all models. Up to 60GB hard drives were available, and additional secondary "Extended Life Battery" could be purchased.
Processor: Intel Pentium III-M (1.06 or 1.2GHz) Memory: 128, 256, or 512MiB DDR (up to 1024MiB, 2 slots) Storage: IDE, 15, 20, 30, 40, 48 or 60GB Display: XGA () CCFL-backlit TN LCD Dimensions: 273 × 223 × 2530mm Mass/Weight: (with standard battery)
2003
X31 X30 updated to the Intel Centrino platform, Pentium M CPUs, faster RAM (DDR PC2100), better GPU (ATI Radeon 7000) and more VRAM (16MiB), USB2.0, 2nd USB port on the left side, Gigabit LAN introduced on some models, IBM Security Sub System on some models. Processor: Intel Pentium M (Banias), L2-Cache: 1MiB, TDP: 2224.5W, 400MT/s FSB 1.3GHz, 1.4GHz, 1.5GHz, 1.6GHz, or 1.7GHz Memory: 256512MiB DDR (up to 2048MiB, 2 slots) Storage: IDE 2.5"; Models with 4200RPM drives and capacities of 20, 30, 40, or 60GB Models with 5400RPM drives and capacities of 40, 60, or 80GB Display: XGA () CCFL-backlit TN LCD Dimensions: 273 × 223 × 30.2mm Mass/Weight: (with standard battery)
2004
X40 The X40 was announced by IBM in 2004.IBM.com - IBM ThinkPad X40 This is the first model in a new "Thin and Light" sub-line. Specifications: Processor: Intel Pentium M 1.0, 1.2, or 1.3GHz (Banias) or 1.1, 1.2, 1.4, 1.5, or 1.6GHz (Dothan) Memory: 2561,536MiB DDR (256 or 512MiB soldered, 1 slot) Storage: IDE 1.8", 20 or 40GB Display: XGA () CCFL-backlit TN LCD Dimensions: 268mm × 211mm × 2127mm Mass/Weight: CNET rated the X40 as "very good" with an 8.5 out of 10.
X41, X41 Tablet The X41 ultraportable notebook was announced by IBM in 2004, and the X41 tablet was announced by the company itself in 2004. The X41 tablet was convertible, with the capacity to function as a tablet PC and an ultraportable laptop.
X32
The X32 was introduced in 2004. The numbering system was irregular, as it was actually introduced after the X40, but using the older X3x chassis design. It was also more powerful than the X40 and X41 units, due to the use of faster full-voltage Dothan processors and standard 2.5-inch 5400/7200RPM hard drives. It was a very short-lived model, discontinued within months of introduction. On this model, IBM included Gigabit LAN and the Security Sub System on all models. The X32 and X41 are two of the last IBM-designed ThinkPads before Lenovo took over. The X41 tablet was released by IBM (shortly after Lenovo acquiring the ThinkPad product line).
Lenovo-branded models +Lenovo ThinkPad X (2005–2023) including X1 and parts of YogaScreens aspect ratio:4316101691610211610ScreenTypeX61*X*0*X*2* (2011)X*3* (2012)X*4* (2013)2014X*5* (2015)X*6* (2016)X*7* (2017)X*8* (2018)X*9* (2019)202020212022202320242008201011.6"NetbookX100eX120eX130eX140ereplaced by 11eX121eX131e12.5"SlimX61sX200sX201sX230sX240sStandardX61X200X201X220X230X240X250X260X270X280replaced by X390Standard (AMD)A275A285replaced by X395Low-costX201iX220iX230iRotationconvertibleX61tX200tX201tX220tX230treplaced by HelixX201tiX220tiX230tiFlipbook «2-in-1»predecessor: ThinkPad Yoga260 Yogareplaced by 370 Yoga13.3"370 YogaX380 YogaX390 YogaX13 Yoga Gen1X13 Yoga Gen2X13 Yoga Gen3X13 Yoga Gen4X13 2-in-1 Gen5StandardX390X13 Gen1X13 Gen2X13 Gen3X13 Gen4X13 Gen5Standard (AMD)X395PremiumX300X301X1replaced by X1 Carbon X1 series12.5"TabletX1 Tablet Gen1X1 Tablet Gen2replaced by 13" line13.3"X1 Tablet Gen3X1 FoldUltralightX1 Nano Gen1X1 Nano Gen2X1 Nano Gen313.5"Flipbook «2-in-1»X1 Titanium Yoga Gen114.1"X1 Yoga Gen1X1 Yoga Gen2X1 Yoga Gen3X1 Yoga Gen4X1 Yoga Gen5X1 Yoga Gen6X1 Yoga Gen7X1 Yoga Gen8X1 2-in- Gen9PremiumultrabookX1 Carbon Gen1X1 Carbon Gen2X1 Carbon Gen3X1 Carbon Gen4X1 Carbon Gen5X1 Carbon Gen6X1 Carbon Gen7X1 Carbon Gen8X1 Carbon Gen9X1 Carbon Gen10X1 Carbon Gen11X1 Carbon Gen1215.6"X1 ExtremeGen1X1 ExtremeGen2X1 ExtremeGen3replaced by 16" line16"X1 ExtremeGen4X1 ExtremeGen5replaced by P1Docking stations and port replicators compatibility (12" and X series laptops only)X6 UltrabaseX61/X61sX6 Tablet UltraBaseX61tabletX200 UltrabaseAll 12"Port Replicator Series 3All 12"UltraBaseSeries 3All 12"Mini Dockseries 3Mini Dock Plusseries 3X220/X220i;X230/X230i (with some issues);X220t (after modification)Basic DockPro DockX250, X260Ultra DockX240, X250, X260USB-C DockX270, X280X1 Carbon, X1 ExtremeBasic Dock (USB-C)Pro Dock (USB-C)Ultra Dock (USB-C)X280X1 CarbonX1 ExtremeX1 port replicatorsOneLink DockX1 Carbon
2005-2006 The X-series laptops released in 2005 by Lenovo were the X60, X60s, and X60 Tablet.
X60 and X60s
The X60 and X60s slimline differed primarily by their processors: the X60s had a soldered low voltage processor, while the X60 did not. This gave the X60s a lower active temperature and longer battery life in exchange for reduced performance. The X60s also had a smaller heatsink and a slightly thinner case with a different battery form factor, although it could use standard X60 batteries with a plastic adapter.
In its review of the ThinkPad X60/X60s, Notebook Review called the laptop, "Hands down the best performing ultraportable on the market", while raising issues about the design and the lack of an optical drive.
The two laptops were available in a variety of configurations. Later X60 models used 64-bit Core 2 Duo CPUs, and some X60s were available with a lightweight LCD panel. Typical specifications of the laptops are provided below: Processor: Intel Core Solo T1300 (1.6GHz), Core Duo T2300E, T2400, T2500 (1.662.0GHz) or Core 2 Duo T5500, T5600, T7200 (1.662.0GHz) X60 Intel Core Duo L2300, L2400, L2500 (1.501.83GHz), or Core 2 Duo L7400 (1.50GHz) X60s Chipset: Intel 945GM Memory: up to 3.2GiB DDR2 (2 slots, fits 4GiB, but chipset limit is 3.2GiB) Graphics: Intel GMA 950 Storage: 1 × 2.5" SATA 1.5Gbit/s (80GB 5400RPM) Display: CCFL-backlit TN LCD Mass/Weight: starting at (X60), or (X60s) Operating System: Microsoft Windows XP Professional
X60 Tablet The ThinkPad X60 Tablet was praised by reviewers. LAPTOP Magazine said the ThinkPad X60 Tablet "raises the bar for business-class convertibles". The most significant issue raised was the low capacity 4-cell battery, which provided a battery life of two hours.
2007
The X Series laptops released by Lenovo in 2007 were the X61, the X61s, and the X61 tablet.
X61 and X61s
The X61 received mixed user reviews on CNET, with some users reporting display problems and delivery delays, while others praised the laptop for performance and portability.
Reviewers, however, praised the ultraportable. Notebook Review called it an "extremely fast ultraportable". However, they criticized the display colors and viewing angles. They also pointed out that the palm rest was prone to heating up because of the wireless networking card underneath it.
The X61s was lauded for its excellent build quality, performance, and long battery life. The battery was an improvement over the X41. The model is one of the last to feature a 43 aspect ratio display.
The specifications of the X61 are given below:The specifications of the most common models the X61s are given below: Processor: Intel Core 2 Duo T7100 (1.8GHz) to T9300 to (2.5GHz) Chipset: Intel 965GM Memory: from 512MiB to 4096MiB DDR2 667MT/s (2 slots, 8192MiB is unofficially supported) Graphics: Intel X3100 Display: (43) CCFL-backlit TN LCD Storage: 1 × SATA 1.5Gbit/s (from 80160GB) Mass/Weight: starting at Processor: Intel Core 2 Duo L7500 1.6GHz Chipset: Intel 965GM Memory: from 512MiB to 4096MiB DDR2 667MHz (2 slots, 8192MiB is unofficially supported) Graphics: Intel X3100 Display: (43) CCFL-backlit TN LCD Storage: 1 × SATA 1.5Gbit/s (100GB 7200RPM) Operating System: Microsoft Windows Vista Business 32-bit