| Attribute |
Lenovo ThinkPad X1 Yoga (2nd Gen) (20JES28V00) × | 
Lenovo ThinkPad X1 Carbon (20K4002WUS) × |
| General | | |
| Model | Lenovo ThinkPad X1 Yoga (2nd Gen) | Lenovo ThinkPad X1 Carbon |
| Product code | 20JES28V00 | 20K4002WUS |
| Design | | |
| Form factor | Convertible (Folder) | Clamshell |
| Brand | Lenovo | Lenovo |
| Family | ThinkPad | ThinkPad |
| Series | X | X |
| Model name | X1 Yoga (2nd Gen) | X1 Carbon |
| Part number | 20JES28V00 | 20K4002WUS |
| Release year (year) | 2018 | 2017 |
| Processor | | |
| Processor family | 7th gen Intel Core i7 | 6th gen Intel Core i7 |
| Processor frequency (GHz) | 2.8 | 2.6 |
| Processor boost frequency (GHz) | 3.9 | 3.4 |
| Processor model | i7-7600U | i7-6600U |
| Processor cores | 2 | 2 |
| Processor threads | 4 | 4 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | BGA 1356 | LGA 1356 (Socket B2) |
| Processor cache (MB) | 4 | 4 |
| Memory | | |
| Internal memory type | LPDDR3-SDRAM | LPDDR3-SDRAM |
| Maximum internal memory (GB) | 16 | 8 |
| Memory clock speed (MHz) | 1,866 | 1,866 |
| Internal memory (GB) | 16 | 16 |
| Display | | |
| Display diagonal (inch) | 14 | 14 |
| Panel type | OLED | IPS |
| HD type | Wide Quad HD | Wide Quad HD |
| LED backlight | + | + |
| Touchscreen | + | - |
| Display resolution | 2560 x 1440 pixels | 2560 x 1440 pixels |
| Graphics | | |
| On-board graphics adapter | + | + |
| Discrete graphics adapter | - | - |
| On-board graphics adapter base frequency (MHz) | 300 | 300 |
| Maximum on-board graphics adapter memory (GB) | 32 | 32 |
| On-board graphics adapter model | Intel HD Graphics 620 | Intel HD Graphics 520 |
| Storage | | |
| Total storage capacity (GB) | 512 | 512 |
| Number of SSDs installed | 1 | 1 |
| Card reader integrated | + | + |
| SSD form factor | M.2 | - |
| Storage media | SSD | SSD |
| Optical drive | - | - |
| Networking | | |
| Wi-Fi standards | - ieee 802.11a
- ieee 802.11ac
- ieee 802.11b
- ieee 802.11g
- ieee 802.11n
| |
| Bluetooth | + | + |
| Ethernet LAN | - | - |
| Wi-Fi | + | + |
| 4g | + | + |
| 3g | + | - |
| Bluetooth version | - | 4.1 |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 3 | 2 |
| USB 3.x Type-C ports | 2 | 2 |
| Combo headphone/mic port | + | + |
| USB Sleep-and-Charge | + | + |
| DVI port | - | - |
| HDMI ports quantity | 1 | 1 |
| Audio | | |
| Speaker power (W) | 2 | 2 |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Keyboard | | |
| Numeric keypad | - | - |
| Keyboard backlit | + | + |
| Pointing device | ThinkPad UltraNav | ThinkPad UltraNav |
| Software | | |
| Operating system installed | Windows 10 Pro | Windows 7 Professional |
| Operating system architecture (bit) | 64 | 64 |
| Battery | | |
| Battery capacity (watt-hours) (Wh) | 56 | 57 |
| Battery life (max) (h) | 15.5 | 15.5 |
| Weight and dimensions | | |
| Weight (kg) | 1.36 | 1.13 |
| Height (mm) | 17.4 | 15.9 |
| Depth (mm) | 229 | 217.1 |
| Width (mm) | 333 | 323.5 |
| Power | | |
| AC adapter power (W) | 65 | 65 |
| Security | | |
| Cable lock slot | + | + |
| Fingerprint reader | + | + |
| Trusted platform module (TPM) | + | + |