| Model | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Processor | | |
| 9th Generation Intel® Core™ i5-9300H Processor (2.40GHz, up to 4.10GHz with Turbo Boost, 4 Cores, 8MB Cache) | Up to 10th Generation Intel® Core™ i7-10510U (1.80GHz, up to 4.90GHz with Turbo Boost, 4 Cores, 8 Threads, 8MB Cache) |
| 9th Generation Intel® Core™ i5-9400H with vPro™ (2.50GHz, up to 4.30GHz with Turbo Boost, 4 Cores, 8MB Cache) | |
| 9th Generation Intel® Core™ i7-9750H Processor (2.60GHz, up to 4.50GHz with Turbo Boost, 6 Cores, 12MB Cache) | |
| 9th Generation Intel® Core™ i7-9850H with vPro™ (2.60GHz, up to 4.60GHz with Turbo Boost, 6 Cores, 12MB Cache) | |
| 9th Generation Intel® Core™ i9-9880H with vPro™ (2.30GHz, up to 4.80GHz with Turbo Boost, 8 Cores, 16MB Cache) | |
| Operating System | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Windows 10 Home | Windows 10 Home |
| Windows 10 Pro | Windows 10 Pro |
| | |
| Display | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| 15.6″ FHD (1920 x 1080) IPS, anti-glare with Dolby Vision™ HDR 400, 500 nits | 14″ HD (1366 x 768) anti-glare, 220 nits |
| 15.6″ FHD (1920 x 1080) IPS, anti-glare, 300 nits | 14″ FHD (1920 x 1080) IPS, anti-glare, 250 nits |
| 15.6″ UHD (3840 x 2160) IPS, anti-glare with Dolby Vision™ HDR 400, 500 nits | 14″ FHD (1920 x 1080) IPS, anti-glare, touchscreen, 300 nits |
| 15.6″ UHD (3840 x 2160) OLED, anti-reflection/anti-smudge, touchscreen with Dolby Vision™ HDR 500, 400 nits | 14″ FHD (1920 x 1080) IPS, low power, anti-glare, 400 nits |
| | 14″ WQHD (2560 x 1440) IPS, glossy, 500 nits |
| Graphics | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| NVIDIA® GeForce® GTX 1650 Max-Q 4GB | Integrated Intel® UHD Graphics |
| | NVIDIA® GeForce® MX250 2GB |
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| Camera | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| 720p HD Camera with microphone | HD 720p with ThinkShutter privacy cover |
| IR & 720p HD Camera with microphone (optional) | Optional: Hybrid Infrared (IR) + HD with ThinkShutter |
| Memory | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Up to 64GB DDR4 2666 MHz | Up to 48GB DDR4 2400MHz |
| | |
| Storage | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Up to 1TB SSD PCIe | Up to 1TB PCIe SSD |
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| Battery | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Up to 14 hours*, 4 cell, 80Wh | Up to 16.11 hours* 50Whr |
| Supports Rapid Charge with 135W AC adapter | Rapid Charge available with 65W AC adapter |
| Audio | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Dolby Atmos® speaker system | Dolby Audio™ Premium |
| Dual 360° far-field microphones | Dual Array far-field microphones |
| Security | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Fast Online Identity (FIDO) authentication capabilities | Fast Online Identity (FIDO) authentication capabilities |
| dTPM 2.0 | dTPM 2.0 |
| Match-on-Chip Touch fingerprint reader | Optional: Match-on-Chip touch fingerprint reader |
| Windows Hello with facial recognition software (requires optional IR Camera) | ThinkShutter, webcam privacy cover |
| ThinkShutter | Optional: PrivacyGuard |
| Kensington® lock slot | Optional: Privacy Alert |
| | Kensington lock slot |
| | For T490 Healthcare Edition |
| | FIPS-201 Fingerprint Reader |
| | RFID Reader |
| | IR camera with Windows Hello |
| | dTPM 2.0 |
| | ThinkShutter camera cover |
| | Optional: PrivacyGuard |
| | Optional: PrivacyAlert |
| | Kensington lock slot |
| Ports/Slots | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| 2 x USB 3.1 Gen 1** (one always on) | 2 x USB 3.1 Gen 1** (one Always On) |
| 2 x USB 3.1 Gen 2 Type-C / Intel Thunderbolt 3 (Power Delivery, DisplayPort, Data transfer) | 1 x USB 3.1 Gen 1 Type-C (Power Delivery, DisplayPort, Data transfer) |
| SD card reader | 1 x USB 3.1 Gen 2 Type-C / Intel Thunderbolt 3 (Power Delivery, DisplayPort, Data transfer) |
| HDMI 2.0 | MicroSD card reader |
| Smart card reader (optional) | Smart card reader (Optional) |
| Headphone / mic combo | Headphone / mic combo |
| RJ45 via Ethernet Extension adapter (sold separately) | Micro-SIM slot* |
| Kensington® lock slot | HDMI 1.4 |
| | RJ45 Gigabit Ethernet |
| Connectivity | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Intel® AX200 Wi-Fi 6 802.11AX (2 x 2) | WWAN: Fibocom L850-GL 4G LTE-A Cat9 (Optional) |
| Bluetooth® 5.0 | WLAN: Intel® Wi-Fi 6 AX201 802.11 AX (2 x 2) |
| RJ45 via Ethernet Extension adapter (sold separately) | Bluetooth® 5.0 |
| | Optional: NFC† |
| Dimensions (H x W x D) | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| 361.8mm x 245.7mm x 18.4mm (18.7mm w/ touch) / 14.2″ x 9.7″ x 0.7″ | 329mm x 227mm x 17.9mm / 12.95″ x 8.94″ x 0.70″ |
| Weight | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Starting at 3.76 lbs ( 1.7 kg) | Starting at: |
| | HD: 3.37 lbs (1.53 kg) |
| | FHD IPS / touchscreen & non-touch: 3.41 lbs (1.55 kg) |
| | FHD low power: 3.23 lbs (1.46 kg) |
| | FHD with PrivacyGuard: 3.56 lbs (1.61 kg) |
| | WQHD: 3.23 lbs (1.46 kg) |
| Keyboard | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| Spill resistant | Spill resistant |
| Backlit with white LED lighting | Bottom-load backlight with white LED lighting (Optional) |
| | Lenovo Quick Clean* (App that disengages keyboard / touchpad for up to 90 seconds) |
| Supported Docking | Lenovo Thinkpad x1 Extreme | Lenovo Thinkpad T490 |
| ThinkPad Thunderbolt Workstation Dock | ThinkPad Thunderbolt Dock Gen 2 |
| | ThinkPad Basic/Pro/Ultra Dock |
