| Attribute |
Dynabook X30-D-10G (PT272E-00J023DU) × | 
Lenovo ThinkPad X280 (20KFS1AL00) × |
| General | | |
| Model | Dynabook X30-D-10G | Lenovo ThinkPad X280 |
| Product code | PT272E-00J023DU | 20KFS1AL00 |
| Design | | |
| Product colour | Black, Blue | Black |
| Form factor | Clamshell | Clamshell |
| Brand | Dynabook | Lenovo |
| Family | - | ThinkPad |
| Series | - | X |
| Model name | X30-D-10G | X280 |
| Part number | PT272E-00J023DU | 20KFS1AL00 |
| Market positioning | - | Business |
| Release year (year) | 2018 | 2019 |
| Processor | | |
| Processor manufacturer | - | Intel |
| Processor family | 7th gen Intel Core i5 | 7th gen Intel Core i3 |
| Processor frequency (GHz) | 2.5 | 2.3 |
| Processor boost frequency (GHz) | 3.1 | - |
| Processor model | i5-7200U | i3-7020U |
| Processor cores | 2 | 2 |
| Processor threads | 4 | 4 |
| Processor lithography (Nm) | 14 | 14 |
| Processor socket | BGA 1356 | BGA 1356 |
| Processor cache (MB) | 3 | 3 |
| Memory | | |
| Internal memory type | DDR4-SDRAM | DDR4-SDRAM |
| Maximum internal memory (GB) | 32 | 4 |
| Memory clock speed (MHz) | 2,133 | 2,133 |
| Internal memory (GB) | 8 | 4 |
| Display | | |
| Display diagonal (inch) | 13.3 | 12.5 |
| HD type | HD | - |
| LED backlight | + | + |
| Touchscreen | - | - |
| Dual-screen | - | - |
| Display resolution | 1366 x 768 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 620 |
| Storage | | |
| Total storage capacity (GB) | 128 | 128 |
| Number of SSDs installed | 1 | 1 |
| SSD capacity (GB) | 128 | 128 |
| Card reader integrated | + | + |
| SSD form factor | M.2 | M.2 |
| Storage media | SSD | SSD |
| Optical drive | - | - |
| Networking | | |
| Wi-Fi standards | - 802.11a
- 802.11g
- wi-fi 4 (802.11n)
- wi-fi 5 (802.11ac)
| - 802.11a
- 802.11b
- 802.11g
- wi-fi 4 (802.11n)
- wi-fi 5 (802.11ac)
|
| Bluetooth | + | + |
| Ethernet LAN | - | - |
| Wi-Fi | + | + |
| Bluetooth version | 4.2 | 4.1 |
| Ports and interfaces | | |
| USB 3.x Type-A ports | 1 | 2 |
| USB 3.x Type-C ports | - | 1 |
| Combo headphone/mic port | + | + |
| Docking connector | - | + |
| USB Sleep-and-Charge | + | + |
| HDMI ports quantity | 1 | 1 |
| Audio | | |
| Speaker power (W) | - | 2 |
| Audio chip | - | Realtek ALC3287 |
| Built-in microphone | + | + |
| Camera | | |
| Front camera | + | + |
| Front camera HD type | - | HD |
| Keyboard | | |
| Numeric keypad | - | - |
| Keyboard backlit | + | - |
| Pointing device | Touchpad + Accupoint | ThinkPad UltraNav |
| Software | | |
| Operating system installed | Windows 10 Pro | Windows 10 Pro |
| Operating system architecture (bit) | 64 | 64 |
| Battery | | |
| Battery capacity (watt-hours) (Wh) | 48 | 48 |
| Battery life (max) (h) | - | 16.6 |
| Weight and dimensions | | |
| Weight (kg) | 1.05 | - |
| Height (mm) | 15.9 | - |
| Depth (mm) | 227 | 209.8 |
| Width (mm) | 316 | 307.7 |
| Security | | |
| Cable lock slot | + | + |
| Trusted platform module (TPM) | + | + |