In depth comparison and review of Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) and Lenovo ThinkPad X1 Carbon (7th Gen) (20QE). 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 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Product Type | Tablet - with detachable keyboard | Ultrabook |
|---|---|---|
| Dimensions (WxDxH) | - | 32.3 cm x 21.7 cm x 1.495 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 |
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| Weight | 890 g | 1.09 kg |
| Case Material | Aluminum, magnesium alloy | Carbon fibre, magnesium alloy |
| Colour | Black | - |
| DISPLAY | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Screen Size (Type) | 13" - IPS | 14" |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | - |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 3000 x 2000 (QHD+) | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 3:2 | 16:9 |
| Image Brightness | 400 cd/m² | - |
| Features | Glossy, Corning Gorilla glass, WideView, anti-fingerprint | - |
| PROCESSOR | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
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| CPU | Intel Core i5 (8th Gen) 8250U / 1.6 GHz | No CPU |
|---|---|---|
| Max Turbo Speed | 3.4 GHz | - |
| Number of Cores | Quad-Core | - |
| Cache | 6 MB | - |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| RAM | 8 GB (provided memory is soldered) | (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR3 SDRAM | LPDDR3 SDRAM |
| Speed | 1866 MHz | 2133 MHz |
| Rated Speed | 2133 MHz | 2133 MHz |
| STORAGE | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe - TCG Opal Encryption 2, NVM Express (NVMe) - Samsung | - |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel UHD Graphics 620 |
|---|---|---|
| Camera | Yes | - |
| Resolution | 8 Megapixel (rear), 2 Megapixel (front) | - |
| Camera Features | IR camera, rear camera with auto focus, rear camera with flash | - |
| Sound | Stereo speakers, two microphones | Four speakers, quad array microphone |
| Codec | Realtek ALC3278 | Realtek ALC3286 |
| Compliant Standards | - | High Definition Audio, Dolby Atmos |
| COMMUNICATIONS | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Wireless Controller | Intel Dual Band Wireless-AC 8265 - M.2 Card | - |
| WWAN |
|---|
| Generation | 4G | - |
|---|---|---|
| Technology | UMTS, HSPA, HSPA+, DC-HSPA+, LTE Advanced | - |
| Controller | Sierra Wireless EM7455 | - |
| BATTERY | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Technology | Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 42 Wh | 51 Wh |
| Battery Life | Up to 9.5 hours | Up to 18.3 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | - |
| INPUT | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Type | Keyboard, digitizer, TrackPoint, digital pen, UltraNav | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Volume control, multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Slots | 1 x Nano-SIM card (1 free) | - |
|---|---|---|
| Interfaces | 2 x USB-C 3.1 Gen 1 (Power Delivery 3.0) Pogo keyboard connector Headphone/microphone combo jack |
USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) 2 x USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack Lenovo Ethernet extension connector Dock |
| Memory Card Reader | Yes (microSD, microSDHC, microSDXC) | - |
| SOFTWARE | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition | - |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon (7th Gen) (20QE) |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Keyboard, ThinkPad Pen Pro, USB-C power adapter, pen holder | USB-C power adapter |
| Integrated Options | Ambient light sensor, 3-axis gyro sensor, 3-axis accelerometer, 3-axis compass | - |
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip |
| Security Slot Type | Kensington mini security slot | Kensington mini security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Reset switch, MIL-STD-810G tested | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
| Navigation Receiver | GPS | - |
| Compliant Standards | RoHS, GREENGUARD, low halogen | RoHS |
| SAR Value | 1.51 W/kg (body), 1.51 W/kg (limb) | - |
| ENERGY STAR Certified | - | Yes |
| Manufacturer Warranty | Limited warranty - 3 years - pick-up and return Limited warranty - battery - 1 year |
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