In depth comparison and review of Lenovo ThinkPad T440s and Lenovo ThinkPad X1 Tablet (1st Gen) (20GG). 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.
| DESIGN AND DIMENSIONS | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Product Type | Ultrabook | Tablet - with detachable keyboard |
|---|---|---|
| Dimensions (WxDxH) | 33.1 cm x 22.6 cm x 2.065 cm | - |
| Dimensions (WxDxH) - tablet | - | 29.15 cm x 20.95 cm x 8.75 mm |
| Dimensions (WxDxH) / Weight Details | - | 29.15 cm x 20.95 cm x 8.75 mm / 767 g - tablet 1.07 kg - tablet with keyboard |
| Weight | 1.59 kg | 767 g |
| Case Material | Polycarbonate ABS | Magnesium alloy, polyphenylene sulfide |
| Colour | - | Black |
| DISPLAY | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Screen Size (Type) | 14" - IPS | 12" - IPS |
|---|---|---|
| Touchscreen | - | Yes (10-point multi-touch) |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1600 x 900 (HD+) | 2160 x 1440 (Full HD Plus) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 3:2 |
| Image Brightness | - | 360 cd/m² |
| Features | Anti-glare | Corning Gorilla glass, glare, WideView, anti-fingerprint |
| PROCESSOR | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| CPU | Intel Core i5 (4th Gen) 4300U / 1.9 GHz | Intel Core m5 (6th Gen) 6Y57 / 1.1 GHz |
|---|---|---|
| Max Turbo Speed | 2.9 GHz | 2.8 GHz |
| Number of Cores | Dual-Core | Dual-Core |
| Cache | 3 MB | 4 MB |
| 64-bit Computing | Yes | Yes |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| RAM | 4 GB | 4 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 12 GB | - |
| RAM Type | DDR3L SDRAM | LPDDR3 SDRAM |
| Speed | 1600 MHz | 1866 MHz |
| Form Factor | SO-DIMM 204-pin | - |
| STORAGE | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Main Storage Size (HDD/SSD) | 120 GB SSD | 256 GB SSD M.2 SATA 6Gb/s - TCG Opal Encryption |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 4400 | Intel HD Graphics 515 |
|---|---|---|
| Camera | Yes - 720p | Yes |
| Resolution | - | 8 Megapixel (rear), 2 Megapixel (front) |
| Camera Features | Face tracking | Autofocus, 1080p Full HD movie recording, rear camera with flash |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, three microphones |
| Codec | Realtek ALC3232 | Realtek ALC3268 |
| Compliant Standards | High Definition Audio, Dolby Home Theater v4 | - |
| COMMUNICATIONS | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Wireless | - | Bluetooth, 802.11a/b/g/n/ac, NFC |
|---|---|---|
| Wireless Controller | - | Intel Dual Band Wireless-AC 8260 - M.2 Card |
| Network Interface | Gigabit Ethernet | - |
| WWAN |
|---|
| Generation | - | 4G |
|---|---|---|
| Technology | - | GSM, GPRS, EDGE, WCDMA, HSPA, LTE |
| Controller | - | Huawei ME906S - M.2 Card |
| BATTERY | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Technology | 3-cell Lithium Ion | 2-cell lithium polymer |
|---|---|---|
| Installed Qty | 2 | - |
| Max Supported Qty | 2 | - |
| Battery Capacity (Size) | - | 37 Wh |
| Battery Life | - | Up to 10 hours |
| AC ADAPTER | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt | 45 Watt, 20 V |
| INPUT | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, digitizer, TrackPoint, digital pen, UltraNav |
|---|---|---|
| Keyboard Backlight | - | Yes |
| Features | Spill-resistant, multi-touch touchpad | Volume control, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Slots | - | 1 x Nano-SIM card (1 free) |
|---|---|---|
| Interfaces | 2 x USB 3.0 VGA Mini DisplayPort LAN Dock Headphone/microphone combo jack USB 3.0 (Always On) |
USB 3.0 USB-C Mini DisplayPort Dock Headphone/microphone combo jack |
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | Yes (microSD, microSDHC, microSDXC) |
| SOFTWARE | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) | Windows 10 Pro 64-bit Edition |
|---|
| MISCELLANEOUS | Lenovo ThinkPad T440s | Lenovo ThinkPad X1 Tablet (1st Gen) (20GG) |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Power adapter, keyboard, ThinkPad Pen Pro |
| Integrated Options | - | Ambient light sensor |
| Security | Trusted Platform Module (TPM 1.2) Security Chip | Trusted Platform Module (TPM 1.2 and TPM 2.0), fingerprint reader |
| Security Slot Type | Kensington security slot | Kensington 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, MIL-STD-810G tested | Reset switch, 3D gyrometer, 3D accelerometer, 3D compass, MIL-STD-810G tested |
| Navigation Receiver | - | GPS |
| Compliant Standards | ISO 9001, ISO 14001, WEEE, ISO 27001 | RoHS, GREENGUARD |
| ENERGY STAR Certified | Yes | - |
| Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | Limited warranty - 3 years - pick-up and return |
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