Side by side comparison and review of Microsoft Surface Pro X and Lenovo ThinkPad T440. Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
Advantages and disadvantages of Microsoft Surface Pro X based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight and portable
sharp, vibrant display
excellent battery life
innovative form factor
LTE connectivity option
limited app compatibility
no headphone jack
higher price point
underwhelming base model performance
Advantages and disadvantages of Lenovo ThinkPad T440 based on its technical characteristics, features, user experience, expert reviews and price level.
durable build quality
excellent keyboard comfort
good battery life
solid performance base
efficient thermal management
average display quality
heavier than competitors
limited graphics capability
outdated design style
| DESIGN AND DIMENSIONS | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Product Type | Tablet - no keyboard | Ultrabook |
|---|---|---|
| Dimensions (WxDxH) | 28.7 cm x 20.8 cm x 0.73 cm | 33.9 cm x 23.25 cm x 2.1 cm |
| Weight | 774 g | 1.81 kg |
| Case Material | Anodised aluminium | - |
| Colour | Platinum | Matte black | - |
| DISPLAY | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Screen Size (Type) | 13" | 14" |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | - |
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | 2880 x 1920 | 1600 x 900 (HD+) |
| Pixel Density (ppi) | 267 | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 3:2 | 16:9 |
| Image Brightness | 450 cd/m² | - |
| Features | PixelSense | - |
| PROCESSOR | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| CPU | Microsoft SQ1 3 GHz | Intel Core i5 (4th Gen) 4300U / 1.9 GHz |
|---|---|---|
| Max Turbo Speed | - | 2.9 GHz |
| Number of Cores | - | Dual-Core |
| Cache | - | 3 MB |
| 64-bit Computing | - | Yes |
| Features | - | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 |
| MEMORY | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| RAM | 8 GB | 4 GB (1 x 4 GB) |
|---|---|---|
| Max RAM Supported | - | 8 GB |
| RAM Type | LPDDR4X SDRAM | DDR3L SDRAM |
| Form Factor | - | SO-DIMM 204-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD | 240 GB SSD |
|---|
| AUDIO & VIDEO | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Graphics Processor (GPU) | Qualcomm Adreno 685 | Intel HD Graphics 4400 |
|---|---|---|
| Camera | Yes - 4K (rear), 1080p (front) | Yes |
| Resolution | 10 Megapixel (rear), 5 Megapixel (front) | - |
| Camera Features | Autofocus, Windows Hello | - |
| Sound | Stereo speakers, two microphones | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3232 |
| Compliant Standards | Dolby Audio Premium | - |
| COMMUNICATIONS | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | - |
|---|---|---|
| Network Interface | - | Gigabit Ethernet |
| Compliant Standards | IEEE 802.11b, IEEE 802.11a, IEEE 802.11g, Wi-Fi CERTIFIED, IEEE 802.11n, IEEE 802.11ac, Bluetooth 5.0 | - |
| WWAN |
|---|
| Generation | 4G | - |
|---|---|---|
| Technology | LTE Advanced Pro | - |
| BATTERY | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Battery Life | Up to 15 hours | - |
|---|
| AC ADAPTER | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Output | 65 Watt | - |
|---|
| INPUT | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Type | - | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Features | - | Multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Slots | 1 x Nano-SIM card (1 free) | - |
|---|---|---|
| Interfaces | 2 x USB-C Keyboard SurfaceConnect |
2 x USB 3.0 VGA Mini DisplayPort LAN Dock Headphone/microphone combo jack |
| Memory Card Reader | - | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Operating System (OS) | Windows 10 Pro | Windows 10 Pro (Microsoft Authorized Refurbisher (MAR)) |
|---|---|---|
| Software Included | Microsoft 365 Business Standard, Business Premium or Microsoft 365 Apps (30 days trial), Microsoft 365 Apps (requires licence or subscription) | - |
| MISCELLANEOUS | Microsoft Surface Pro X | Lenovo ThinkPad T440 |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Integrated Options | Accelerometer, ambient light sensor, magnetometer, gyro sensor | - |
| Security | Firmware Trusted Platform Module (TPM) Security Chip | Trusted Platform Module (TPM 1.2) Security Chip |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Navigation Receiver | GPS/GLONASS | - |
| Compliant Standards | - | ISO 9001, ISO 14001, ISO 27001 |
| SAR Value | 1.498 W/kg (body) | - |
| Manufacturer Warranty | Limited warranty - 1 year | Limited warranty - 2 years - pick-up and return |
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