In depth comparison and review of Lenovo ThinkPad X1 Carbon (2nd Gen) and Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ). 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.
Advantages and disadvantages of Lenovo ThinkPad X1 Carbon (2nd Gen) based on its technical characteristics, features, user experience, expert reviews and price level.
robust carbon-fiber construction
excellent keyboard feel
lightweight and portable
high-resolution display
good battery life
higher price point
no touch screen option
limited storage capacity
average graphics performance
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Product Type | Ultrabook | Tablet - with detachable keyboard |
|---|---|---|
| Dimensions (WxDxH) | 33.1 cm x 22.65 cm x 1.772 cm | - |
| Dimensions (WxDxH) - tablet | - | 30.41 cm x 22.6 cm x 0.89 cm |
| Dimensions (WxDxH) / Weight Details | - | 30.41 cm x 22.6 cm x 0.89 cm / 890 g - tablet 30.41 cm x 22.6 cm x 1.51 cm / 1.27 kg - tablet with keyboard |
| Weight | 1.34 kg | 890 g |
| Case Material | Glass-fibre reinforced plastic, carbon fibre reinforced plastic, magnesium-aluminum alloy | Aluminum, magnesium alloy |
| Colour | - | Black |
| DISPLAY | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Screen Size (Type) | 14" | 13" - IPS |
|---|---|---|
| Touchscreen | - | Yes (10-point multi-touch) |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1600 x 900 (HD+) | 3000 x 2000 (QHD+) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 3:2 |
| Image Brightness | - | 400 cd/m² |
| Features | Anti-glare | Glossy, Corning Gorilla glass, WideView, anti-fingerprint |
| PROCESSOR | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| CPU | Intel Core i7 (4th Gen) 4600U / 2.1 GHz | Intel Core i5 (8th Gen) 8250U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 3.3 GHz | 3.4 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 4 MB | 6 MB |
| 64-bit Computing | Yes | Yes |
| Features | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0, Intel Smart Cache | Integrated memory controller |
| MEMORY | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR3L SDRAM | LPDDR3 SDRAM |
| Speed | 1600 MHz / PC3L-12800 | 1866 MHz |
| Rated Speed | 1600 MHz | 2133 MHz |
| STORAGE | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Main Storage Size (HDD/SSD) | 120 GB SSD | 256 GB SSD M.2 PCIe - TCG Opal Encryption 2, NVM Express (NVMe) - Samsung |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 4400 | Intel UHD Graphics 620 |
|---|---|---|
| Camera | Yes - 720p | Yes |
| Resolution | - | 8 Megapixel (rear), 2 Megapixel (front) |
| Camera Features | Face tracking, gesture input support | IR camera, rear camera with auto focus, rear camera with flash |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two microphones |
| Codec | Realtek ALC3232 | Realtek ALC3278 |
| Compliant Standards | High Definition Audio, Dolby Home Theater v4 | - |
| COMMUNICATIONS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Wireless | Bluetooth, Wi-Fi | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | - | Intel Dual Band Wireless-AC 8265 - M.2 Card |
| Network Interface | Gigabit Ethernet | - |
| WWAN |
|---|
| Generation | WWAN upgradable | 4G |
|---|---|---|
| Technology | - | UMTS, HSPA, HSPA+, DC-HSPA+, LTE Advanced |
| Controller | - | Sierra Wireless EM7455 |
| BATTERY | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Technology | Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | - | 42 Wh |
| Battery Life | - | Up to 9.5 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | - | 65 Watt |
| INPUT | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, digitizer, TrackPoint, digital pen, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, adaptive keyboard | Volume control, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Slots | - | 1 x Nano-SIM card (1 free) |
|---|---|---|
| Interfaces | USB 3.0 Mini DisplayPort HDMI Headphone/microphone combo jack Lenovo Ethernet extension connector OneLink connector USB 3.0 (Always On) |
2 x USB-C 3.1 Gen 1 (Power Delivery 3.0) Pogo keyboard connector Headphone/microphone combo jack |
| Memory Card Reader | - | Yes (microSD, microSDHC, microSDXC) |
| SOFTWARE | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Operating System (OS) | Windows 10 Home (Microsoft Authorized Refurbisher (MAR)) | Windows 10 Pro 64-bit Edition |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Keyboard, ThinkPad Pen Pro, USB-C power adapter, pen holder |
| Integrated Options | Ambient light sensor | Ambient light sensor, 3-axis gyro sensor, 3-axis accelerometer, 3-axis compass |
| Security | Trusted Platform Module (TPM 1.2) Security Chip | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | Kensington security slot | Kensington mini 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, RapidCharge, reset switch, 1 USB 3.0 (Always On), voice input support, MIL-STD-810G tested | Reset switch, MIL-STD-810G tested |
| Navigation Receiver | - | GPS |
| Compliant Standards | ISO 9001, ISO 14001, RoHS, ISO 27001 | RoHS, GREENGUARD, low halogen |
| SAR Value | - | 1.51 W/kg (body), 1.51 W/kg (limb) |
| ENERGY STAR Certified | Yes | - |
| Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | Limited warranty - 3 years - pick-up and return Limited warranty - battery - 1 year |
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