Side by side comparison and review of ASUS VivoBook S15 (S531FA) and Lenovo ThinkPad X280 (20KF). 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 ASUS VivoBook S15 (S531FA) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
large screen size
decent battery life
ample storage capacity
includes essential ports
mediocre display quality
heavy build
average processor
limited graphics performance
| DESIGN AND DIMENSIONS | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.72 cm x 23.03 cm x 1.8 cm | 30.77 cm x 20.98 cm x 1.78 cm |
| Weight | 1.8 kg | 1.26 kg |
| Case Material | - | Glass-fibre, magnesium-aluminum alloy |
| Colour | Gun metal | Black |
| DISPLAY | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Screen Size (Type) | 15.6" | 12.5" |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1366 x 768 (HD) |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 300 cd/m² | 220 cd/m² |
| Features | Anti-glare, 178° horizontal and vertical viewing angle, NanoEdge display | Anti-glare |
| PROCESSOR | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| CPU | Intel Core i5 (8th Gen) 8265U / 1.6 GHz | Intel Core i5 (8th Gen) 8250U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 3.4 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | 6 MB |
| 64-bit Computing | Yes | Yes |
| Features | Intel Turbo Boost Technology 2.0 | Integrated memory controller |
| MEMORY | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| RAM | 8 GB | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | 2400 MHz |
| Rated Speed | 2400 MHz | 2400 MHz |
| STORAGE | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe | 256 GB SSD M.2 PCIe - TCG Opal Encryption, NVM Express (NVMe) - Samsung |
|---|
| AUDIO & VIDEO | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel UHD Graphics 620 |
|---|---|---|
| Camera | Yes - HD | Yes - 720p |
| Camera Features | IR camera | ThinkShutter camera privacy |
| Sound | Harman/kardon stereo speakers, array microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3287 |
| Compliant Standards | - | High Definition Audio, Dolby Audio Premium |
| Audio Features | ASUS SonicMaster, Smart Amplification technology | - |
| COMMUNICATIONS | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | - | Intel Dual Band Wireless-AC 8265 - M.2 Card |
| Features | - | Gigabit Ethernet via optional Ethernet (RJ-45) adapter |
| WWAN |
|---|
| Generation | - | 4G |
|---|---|---|
| Technology | - | LTE |
| Controller | - | FIBOCOM L830-EB - M.2 Card |
| BATTERY | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Technology | 3-cell | 6-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 42 Wh | 48 Wh |
| Battery Life | - | Up to 16.6 hours |
| AC ADAPTER | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19 V, 2.47 A | 65 Watt, 20 V, 3.25 A |
| INPUT | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | - |
| Features | - | Spill-resistant, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Slots | - | Nano-SIM card |
|---|---|---|
| Interfaces | HDMI 2 x USB 2.0 USB 3.1 Gen 1 Headphone/microphone combo jack USB-C 3.1 Gen 1 |
USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 1 USB-C 3.1 Gen 2 (supports Thunderbolt 3) HDMI Lenovo Ethernet extension connector Dock Headphone/microphone combo jack |
| Memory Card Reader | Yes (microSD) | Yes (microSD) |
| SOFTWARE | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 10 Pro 64-bit Edition |
|---|
| MISCELLANEOUS | ASUS VivoBook S15 (S531FA) | Lenovo ThinkPad X280 (20KF) |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | Power adapter | USB-C power adapter |
| Security | - | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | - | Kensington mini security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | ErgoLift | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
| Compliant Standards | - | RoHS |
| SAR Value | 0.584 W/kg (body), 0.584 W/kg (limb) | - |
| ENERGY STAR Certified | - | Yes |
| Manufacturer Warranty | - | Limited warranty - 3 years - pick-up and return |
| Model Number | EJ037T | - |
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