Detailed comparison and review of Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) and Lenovo ThinkPad X1 Carbon Gen 8 (20UA). With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| Product Type | Tablet - with detachable keyboard | Ultrabook |
|---|---|---|
| Dimensions (WxDxH) | - | 32.3 cm x 21.7 cm x 1.49 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 | Black paint |
| DISPLAY | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| 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+) | 2560 x 1440 (WQHD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 3:2 | 16:9 |
| Image Brightness | 400 cd/m² | 300 cd/m² |
| Colour Gamut | - | 72% |
| Features | Glossy, Corning Gorilla glass, WideView, anti-fingerprint | Anti-glare, Wide Viewing Angle, 170° viewing angle |
| PROCESSOR | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| CPU | Intel Core i5 (8th Gen) 8250U / 1.6 GHz | Intel Core i5 (10th Gen) 10310U / 1.7 GHz |
|---|---|---|
| Max Turbo Speed | 3.4 GHz | 4.4 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | 6 MB |
| 64-bit Computing | Yes | Yes |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (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 Gen 8 (20UA) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe - TCG Opal Encryption 2, NVM Express (NVMe) - Samsung | 256 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption - Toshiba |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel UHD Graphics |
|---|---|---|
| Camera | Yes | Yes - 720p |
| Resolution | 8 Megapixel (rear), 2 Megapixel (front) | - |
| Camera Features | IR camera, rear camera with auto focus, rear camera with flash | ThinkShutter camera privacy |
| Sound | Stereo speakers, two microphones | Four speakers, quad array microphone |
| Codec | Realtek ALC3278 | USI 4551-513711-00 |
| Compliant Standards | - | High Definition Audio, Dolby Atmos |
| COMMUNICATIONS | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | Bluetooth 5.0, 802.11a/b/g/n/ac/ax |
|---|---|---|
| Wireless Controller | Intel Dual Band Wireless-AC 8265 - M.2 Card | Intel Wi-Fi 6 AX 201 |
| Network Interface | - | Gigabit Ethernet |
| 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 Gen 8 (20UA) |
|---|
| Technology | Lithium Ion | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 42 Wh | 51 Wh |
| Battery Life | Up to 9.5 hours | Up to 19.5 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt |
| INPUT | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| 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, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| 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 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB-C 3.2 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack Lenovo Ethernet extension connector Dock LAN (on supplied cable) |
| Memory Card Reader | Yes (microSD, microSDHC, microSDXC) | - |
| SOFTWARE | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition | Windows 10 Pro 64-bit Edition |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) | Lenovo ThinkPad X1 Carbon Gen 8 (20UA) |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Keyboard, ThinkPad Pen Pro, USB-C power adapter, pen holder | USB-C power adapter, ThinkPad Ethernet Extension Cable Gen 2 |
| 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, fingerprint reader |
| 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) | 1.49 W/kg (body), 1.49 W/kg (limb) |
| ENERGY STAR Certified | - | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| TCO Certified | - | TCO Certified Notebooks 8 |
| Manufacturer Warranty | Limited warranty - 3 years - pick-up and return Limited warranty - battery - 1 year |
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