In depth comparison and review of Lenovo ThinkPad X1 Carbon (1st Gen) and Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Product Type | Ultrabook | Tablet - with detachable keyboard |
|---|---|---|
| Dimensions (WxDxH) | 33.1 cm x 22.6 cm x 1.88 cm | - |
| Dimensions (WxDxH) - tablet | - | 29.15 cm x 20.95 cm x 0.845 cm |
| Dimensions (WxDxH) / Weight Details | - | 29.15 cm x 20.95 cm x 0.845 cm / 770 g - tablet 29.15 cm x 20.95 cm x 1.415 cm / 1.07 kg - tablet with keyboard |
| Weight | 1.36 kg | 770 g |
| Case Material | Carbon fibre, magnesium-aluminum alloy | Glass-fibre reinforced plastic, magnesium alloy |
| Colour | - | Black |
| DISPLAY | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Screen Size (Type) | 14" | 12" - IPS |
|---|---|---|
| Touchscreen | - | Yes (10-point multi-touch) |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1366 x 768 (HD) | 2160 x 1440 (Full HD Plus) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 3:2 |
| Image Brightness | - | 360 cd/m² |
| Features | Premium | Glossy, Corning Gorilla glass, WideView, anti-fingerprint |
| PROCESSOR | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| CPU | Intel Core i5 (3rd Gen) 3427U / 1.8 GHz | Intel Core i5 (7th Gen) 7Y57 / 1.2 GHz |
|---|---|---|
| Max Turbo Speed | 2.8 GHz | 3.3 GHz |
| Number of Cores | Dual-Core | Dual-Core |
| Cache | 3 MB | 4 MB |
| 64-bit Computing | Yes | Yes |
| Chipset | Mobile Intel QS77 Express | - |
| Platform Technology | Intel vPro Platform | - |
| Features | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0, Intel Smart Cache | Integrated memory controller |
| MEMORY | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| RAM | 4 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR3L SDRAM | LPDDR3 SDRAM |
| Speed | 1333 MHz / PC3L-10600 | 1866 MHz |
| Rated Speed | 1333 MHz | 1866 MHz |
| Form Factor | Integrated | - |
| STORAGE | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD SATA 6Gb/s | 256 GB SSD M.2 PCIe - TCG Opal Encryption, NVM Express (NVMe) - Intel |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 4000 | Intel HD Graphics 615 |
|---|---|---|
| Camera | Yes | Yes |
| Resolution | - | 8 Megapixel (rear), 2 Megapixel (front) |
| Camera Features | Face tracking | Rear camera with auto focus, rear camera with flash |
| Video Resolutions | 1280 x 720 | 1080p |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, three microphones |
| Codec | Realtek ALC3202 | Realtek ALC3268 |
| Compliant Standards | High Definition Audio, Dolby Home Theater v4 | - |
| COMMUNICATIONS | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Wireless | 802.11a/b/g/n, Bluetooth 4.0 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | Intel Centrino Advanced-N 6205S - PCI Express Mini Card | M.2 Card |
| WWAN |
|---|
| Generation | 3G | 4G |
|---|---|---|
| Technology | GPRS, WCDMA, HSPA, HSPA+ | LTE Advanced |
| Controller | Ericsson H5321gw - PCI Express Mini Card | Sierra Wireless EM7455 |
| Max Transfer Rate | 21 Mbps | - |
| BATTERY | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Technology | 4-cell lithium polymer | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 45.8 Wh | 37 Wh |
| Battery Life | Up to 8.2 hours | Up to 10 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 90 Watt | 45 Watt, 5 / 9 / 15 / 20 V |
| INPUT | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, digitizer, TrackPoint, digital pen, UltraNav |
|---|---|---|
| Keyboard Backlight | - | Yes |
| Features | Volume control, spill-resistant, multi-touch touchpad, buttonless touchpad | Volume control, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Slots | - | 1 x Nano-SIM card (1 free) |
|---|---|---|
| Interfaces | USB 3.0 PoweredUSB 2.0 Mini DisplayPort Headphone/microphone combo jack |
USB-C 3.1 Gen 1 (Power Delivery 2.0) USB 3.1 Gen 1/USB 3.0 Mini DisplayPort Dock Headphone/microphone combo jack VGA (on supplied adapter) |
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | Yes (microSD, microSDHC, microSDXC) |
| SOFTWARE | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Operating System (OS) | Windows 8 64-bit Edition | Windows 10 Pro 64-bit Edition |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X1 Carbon (1st Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | Power adapter | Keyboard, ThinkPad Pen Pro, USB-C power adapter, pen holder |
| Cables Included | - | Mini DisplayPort-VGA adapter |
| Integrated Options | - | Ambient light sensor, 3-axis gyro sensor, digital compass, 3-axis accelerometer |
| Security | Trusted Platform Module (TPM 1.2) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Administrator password, hard drive password, power-on password, ThinkPad Roll Cage, Intel Active Management Technology (iAMT), RapidCharge | Reset switch, MIL-STD-810G tested |
| Navigation Receiver | GPS | - |
| Compliant Standards | RoHS | RoHS, GREENGUARD, low halogen |
| ENERGY STAR Certified | Yes | - |
| EPEAT Compliant | EPEAT Gold | - |
| Manufacturer Warranty | Limited warranty - 3 years - pick-up and return | - |
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