Detailed comparison and review of ASUS VivoBook S15 (S531FA) and ASUS VivoBook 15 (X515FA). 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.
| DESIGN AND DIMENSIONS | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.72 cm x 23.03 cm x 1.8 cm | 36.02 cm x 23.49 cm x 1.99 cm |
| Weight | 1.8 kg | 1.8 kg |
| Case Material | - | Plastic |
| Colour | Gun metal | Transparent silver (LCD cover), transparent silver (top), slate grey (bottom) |
| DISPLAY | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Screen Size (Type) | 15.6" | 15.6" |
|---|---|---|
| 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 | 200 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 VivoBook 15 (X515FA) |
|---|
| CPU | Intel Core i5 (8th Gen) 8265U / 1.6 GHz | Intel Core i3 (10th Gen) 10110U / 2.1 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 4.1 GHz |
| Number of Cores | Quad-Core | Dual-Core |
| Cache | 6 MB | 4 MB |
| 64-bit Computing | Yes | - |
| Features | Intel Turbo Boost Technology 2.0 | Intel Turbo Boost Technology 2.0, Intel Smart Cache |
| MEMORY | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| RAM | 8 GB | 8 GB (1 x 4 GB + 4 GB (soldered)) |
|---|---|---|
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | - |
| Rated Speed | 2400 MHz | - |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe | 256 GB SSD M.2 2280 PCIe 3.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel UHD Graphics |
|---|---|---|
| Camera | Yes - HD | Yes - 720p |
| Camera Features | IR camera | - |
| Sound | Harman/kardon stereo speakers, array microphone | Stereo speakers, microphone |
| Audio Features | ASUS SonicMaster, Smart Amplification technology | ASUS SonicMaster |
| COMMUNICATIONS | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Features | - | Single stream (1x1) |
| BATTERY | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Technology | 3-cell | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 42 Wh | 37 Wh |
| AC ADAPTER | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 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 VivoBook 15 (X515FA) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | - |
| Features | - | Chiclet keyboard, 1.4mm travel distance |
| CONNECTIONS & EXPANSIONS | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Slots | - | 1 x M.2 (PCI Express 3.0 x4) (0 free) |
|---|---|---|
| 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 2 x USB 2.0 USB 3.2 Gen 1 USB-C 3.2 Gen 1 HDMI |
| Memory Card Reader | Yes (microSD) | - |
| SOFTWARE | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 11 Home |
|---|
| MISCELLANEOUS | ASUS VivoBook S15 (S531FA) | ASUS VivoBook 15 (X515FA) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | - | Firmware Trusted Platform Module (TPM) Security Chip |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | ErgoLift | System password, hard drive password |
| SAR Value | 0.584 W/kg (body), 0.584 W/kg (limb) | - |
| Repairability Index | - | 5.9 (out of 10) |
| ENERGY STAR Certified | - | Yes |
| Model Number | EJ037T | EJ105W |
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