Detailed comparison and review of ASUS VivoBook S15 (S531FA) and ASUS 14 (X409FA). With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.
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
Advantages and disadvantages of ASUS 14 (X409FA) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
compact design
solid build quality
adequate performance
easy portability
average battery life
basic display quality
limited graphics capability
no backlit keyboard
| DESIGN AND DIMENSIONS | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.72 cm x 23.03 cm x 1.8 cm | 32.5 cm x 21.6 cm x 2.29 cm |
| Weight | 1.8 kg | 1.6 kg |
| Colour | Gun metal | Slate grey |
| DISPLAY | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Screen Size (Type) | 15.6" | 14" |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 300 cd/m² | - |
| Colour Gamut | - | 45% NTSC |
| Features | Anti-glare, 178° horizontal and vertical viewing angle, NanoEdge display | Anti-glare |
| PROCESSOR | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| CPU | Intel Core i5 (8th Gen) 8265U / 1.6 GHz | Intel Core i5 (8th Gen) 8265U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 3.9 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 | - |
| MEMORY | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| RAM | 8 GB | 8 GB (1 x 4 GB + 4 GB (soldered)) |
|---|---|---|
| Max RAM Supported | - | 16 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | - |
| Rated Speed | 2400 MHz | - |
| Form Factor | - | SO-DIMM 260-pin |
| STORAGE | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe | 256 GB SSD M.2 PCIe 3.0 x2 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel UHD Graphics |
|---|---|---|
| Camera | Yes - HD | Yes - VGA |
| Camera Features | IR camera | - |
| Sound | Harman/kardon stereo speakers, array microphone | Speaker, microphone |
| Audio Features | ASUS SonicMaster, Smart Amplification technology | - |
| COMMUNICATIONS | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|
| BATTERY | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Technology | 3-cell | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 42 Wh | 42 Wh |
| AC ADAPTER | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19 V, 2.47 A | 45 Watt, 19 V, 2.37 A |
| INPUT | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Keyboard Backlight | Yes | - |
| Features | - | Chiclet keyboard |
| CONNECTIONS & EXPANSIONS | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Interfaces | HDMI 2 x USB 2.0 USB 3.1 Gen 1 Headphone/microphone combo jack USB-C 3.1 Gen 1 |
Headphone/microphone combo jack USB 3.1 Gen 1 2 x USB 2.0 USB-C 3.1 Gen 1 HDMI LAN |
|---|---|---|
| Memory Card Reader | Yes (microSD) | Yes (microSD) |
| SOFTWARE | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 10 Home 64-bit Edition |
|---|
| MISCELLANEOUS | ASUS VivoBook S15 (S531FA) | ASUS 14 (X409FA) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Features | ErgoLift | - |
| SAR Value | 0.584 W/kg (body), 0.584 W/kg (limb) | 0.196 W/kg (body), 0.196 W/kg (limb) |
| Model Number | EJ037T | EK034T |
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