In depth comparison and review of Lenovo ThinkPad X1 Carbon (2nd Gen) and Lenovo ThinkPad X12 Detachable (20UW). 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
Advantages and disadvantages of Lenovo ThinkPad X12 Detachable (20UW) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
detachable flexibility
sharp display clarity
responsive touch screen
decent battery life
limited port selection
moderate storage capacity
higher price point
average graphics performance
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Product Type | Ultrabook | Tablet - with detachable keyboard |
|---|---|---|
| Dimensions (WxDxH) | 33.1 cm x 22.65 cm x 1.772 cm | - |
| Dimensions (WxDxH) - tablet | - | 28.33 cm x 20.35 cm x 0.88 cm |
| Dimensions (WxDxH) / Weight Details | - | 28.33 cm x 21.78 cm x 0.57 cm / 340 g - keyboard dock |
| Weight | 1.34 kg | 760 g |
| Case Material | Glass-fibre reinforced plastic, carbon fibre reinforced plastic, magnesium-aluminum alloy | Magnesium-aluminum alloy |
| Colour | - | Black |
| DISPLAY | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Screen Size (Type) | 14" | 12.3" - IPS |
|---|---|---|
| Touchscreen | - | Yes (10-point multi-touch) |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1600 x 900 (HD+) | 1920 x 1280 (Full HD Plus) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 3:2 |
| Image Brightness | - | 400 cd/m² |
| Colour Gamut | - | 100% sRGB |
| Features | Anti-glare | Anti-reflective, Direct Bonding technology, anti-smudge, Corning Gorilla glass 5, 178° viewing angle, capacitive touch screen |
| PROCESSOR | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| CPU | Intel Core i7 (4th Gen) 4600U / 2.1 GHz | Intel Core i5 (11th Gen) 1130G7 / 1.8 GHz |
|---|---|---|
| Max Turbo Speed | 3.3 GHz | 4 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 4 MB | 8 MB |
| 64-bit Computing | 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 X12 Detachable (20UW) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR3L SDRAM | LPDDR4X SDRAM |
| Speed | 1600 MHz / PC3L-12800 | 4266 MHz |
| Rated Speed | 1600 MHz | 4266 MHz |
| STORAGE | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Main Storage Size (HDD/SSD) | 120 GB SSD | 256 GB SSD M.2 2242 PCIe 3.0 x4 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 4400 | Intel Iris Xe Graphics |
|---|---|---|
| Memory Allocation Technology | - | Shared Video Memory (UMA) |
| Camera | Yes - 720p | Yes |
| Resolution | - | 8 Megapixel (rear), 5 Megapixel (front) |
| Camera Features | Face tracking, gesture input support | Privacy shutter, rear camera with auto focus, IR/RGB camera |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3232 | Realtek ALC3306-GRT |
| Compliant Standards | High Definition Audio, Dolby Home Theater v4 | Dolby Audio |
| COMMUNICATIONS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Wireless | Bluetooth, Wi-Fi | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 |
|---|---|---|
| Wireless Controller | - | Intel Wi-Fi 6 AX 201 |
| Network Interface | Gigabit Ethernet | - |
| Features | - | Dual stream (2x2), MU-MIMO |
| WWAN |
|---|
| Generation | WWAN upgradable | - |
|---|
| BATTERY | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Technology | Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | - | 42 Wh |
| Battery Life | - | Up to 12.42 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | - | 65 Watt |
| INPUT | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, digitizer, touchpad, digital pen |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, adaptive keyboard | 3-level backlight |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Interfaces | USB 3.0 Mini DisplayPort HDMI Headphone/microphone combo jack Lenovo Ethernet extension connector OneLink connector USB 3.0 (Always On) |
USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack Pogo keyboard connector |
|---|
| SOFTWARE | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Operating System (OS) | Windows 10 Home (Microsoft Authorized Refurbisher (MAR)) | Windows 10 Pro 64-bit Edition - English |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X12 Detachable (20UW) |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Keyboard, USB-C power adapter, Lenovo Digital Pen |
| Integrated Options | Ambient light sensor | Accelerometer, hall sensor, gyroscope, inclinometer |
| 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 nano 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 | RapidCharge, MIL-STD-810H tested |
| Compliant Standards | ISO 9001, ISO 14001, RoHS, ISO 27001 | RoHS, low halogen, Energy-Related Products (ErP) Lot 3 |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| TCO Certified | - | TCO Certified Notebooks 8 |
| Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | Base warranty - 3 years - pick-up and return Base warranty - battery - 1 year Extended warranty - 3 years - on-site |
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