| Model | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| Processor | | |
| 7th Generation Intel® Core™ i5-7300U with vPro™ (2.60GHz, up to 3.50GHz with Turbo Boost, 3MB Cache) | Up to 10th Generation Intel® Core™ i7-10510U (1.80GHz, up to 4.90GHz with Turbo Boost, 4 Cores, 8MB Cache) |
| Up to 8th Generation Intel® Core™ i7-8650U with vPro™ (1.90GHz, up to 4.20GHz with Turbo Boost, 8MB Cache) | |
| Operating System | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| Windows 10 Pro | Windows 10 Home |
| | Windows 10 Pro |
| Display | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| 12.5″ HD (1366 x 768) anti-glare, 220 nits | 13.3″ HD (1366 x 768) anti-glare, 250 nits |
| 12.5″ FHD (1920 x 1080) IPS anti-glare touchscreen, 300 nits | 13.3″ FHD (1920 x 1080) IPS, anti-glare, 300 nits |
| | 13.3″ FHD (1920 x 1080) IPS, anti-glare, touchscreen, 300 nits |
| | 13.3″ FHD (1920 x 1080) IPS, ePrivacy Guard, anti-glare, 400 nits |
| Graphics | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| Integrated Intel® HD Graphics 620 | Integrated Intel® UHD Graphics |
| Integrated Intel® UHD Graphics 620 | |
| Memory | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| Up to 16GB DDR4 2400 MHz (Soldered) | Up to 16GB DDR4 2666MHz (Soldered) |
| Battery | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| Up to 15 hours | Up to 17.6 hours with 48 Whr battery* |
| Storage | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| 256GB SSD PCIe | Up to 1TB SSD PCIe-NVMe OPAL2.0 M.2 |
| Security | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| Match-on-chip fingerprint reader (Optional) | ThinkShutter |
| ThinkShutter | PrivacyGuard |
| Optional IR camera | PrivacyAlert (requires PrivacyGuard) |
| dTPM 2.0 | Lock slot |
| Kensington® Lock slot | dTPM 2.0 |
| FIDO | Optional Fingerprint reader |
| Connectivity | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| WLAN: Intel® 8265 802.11AC (2 x 2) + Bluetooth® 4.1 with vPro™ | WLAN: Intel® Dualband 9560 802.11 AC (2 x 2) |
| WWAN: Fibocom L850-GL 4G LTE-A Cat9 (Optional) | Bluetooth® 5.0 |
| | WWAN: Fibocom L850-GL 4G LTE-A Cat9 (Optional) |
| Camera | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| 720p HD with ThinkShutter and microphone | 720p HD with ThinkShutter privacy cover |
| | IR & 720p HD with ThinkShutter privacy cover |
| Keyboard | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| Spill resistant | |
| English (Optional backlit) | |
| Spanish (Optional backlit) | |
| Audio | Lenovo ThinkPad X280 | |
| Dolby Premium Audio™ | Dolby Audio™ Premium |
| | Dual far-field microphones |
| Ports & Slots | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| 2 x USB 3.1 Gen 1** (one Always On) | 2 x USB 3.1 Gen 1** (one Always On) |
| 1 x USB 3.1 Gen 1** Type-C (Power Delivery, DisplayPort, Data transfer) | 1 x USB 3.1 Gen 1 Type-C (Power Delivery, DisplayPort, Data transfer) |
| 1 x USB 3.1 Gen 2** Type-C / Intel Thunderbolt 3 (Power Delivery, DisplayPort, Data transfer) | 1 x USB 3.1 Gen 2 Type-C / Intel Thunderbolt 3 (Power Delivery, DisplayPort, Data transfer) |
| HDMI 1.4 | MicroSD card reader/Micro-SIM combination slot |
| Native RJ45 with dongle (sold separately) | Smart card reader (Optional) |
| Microphone/headphone audio combo jack | Headphone / mic combo |
| MicroSD card reader | HDMI 1.4 |
| | RJ45 via Ethernet Extension adapter (sold separately) |
| Dimensions (W x D x H) | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| 12.1″ x 8.3″ x 0.70″ / 307.7 x 209.8 x 17.8 (mm) | 12.3″ x 8.6″ x 0.67″ / 311.9 x 217.2 x 16.9 (mm) |
| Weight | Lenovo ThinkPad X280 | Lenovo ThinkPad X390 |
| Starting at 2.78 lbs (1.26 kg) | Starting at 2.84 lbs (1.28 kg) |
