Side by side comparison and review of ASUS VivoBook 15 (X515FA) and ASUS VivoBook S14 (S431FA). 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.
| DESIGN AND DIMENSIONS | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.02 cm x 23.49 cm x 1.99 cm | 32.33 cm x 21.37 cm x 1.8 cm |
| Weight | 1.8 kg | 1.4 kg |
| Case Material | Plastic | - |
| Colour | Transparent silver (LCD cover), transparent silver (top), slate grey (bottom) | Transparent silver |
| DISPLAY | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| 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) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 200 cd/m² | 250 cd/m² |
| Colour Gamut | 45% NTSC | 72% NTSC |
| Features | Anti-glare | Anti-glare, NanoEdge display, 178° viewing angle |
| PROCESSOR | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| CPU | Intel Core i3 (10th Gen) 10110U / 2.1 GHz | Intel Core i5 (8th Gen) 8265U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | 3.9 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 4 MB | - |
| 64-bit Computing | - | Yes |
| Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Intel Turbo Boost Technology 2.0 |
| MEMORY | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| RAM | 8 GB (1 x 4 GB + 4 GB (soldered)) | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR4 SDRAM | LPDDR3 SDRAM |
| Speed | - | 2133 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe 3.0 - NVM Express (NVMe) | 256 GB SSD M.2 PCIe 3.0 x2 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel UHD Graphics 620 |
|---|---|---|
| Camera | Yes - 720p | Yes - HD |
| Camera Features | - | IR camera |
| Sound | Stereo speakers, microphone | Harman/kardon stereo speakers, array microphone |
| Audio Features | ASUS SonicMaster | ASUS SonicMaster |
| COMMUNICATIONS | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Features | Single stream (1x1) | - |
| BATTERY | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Technology | 2-cell Lithium Ion | 2-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 37 Wh | 47 Wh |
| AC ADAPTER | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19 V, 2.37 A | 45 Watt, 19 V, 2.47 A |
| INPUT | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Type | Keyboard, touchpad | Keyboard, NumberPad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | Chiclet keyboard, 1.4mm travel distance | - |
| CONNECTIONS & EXPANSIONS | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Slots | 1 x M.2 (PCI Express 3.0 x4) (0 free) | - |
|---|---|---|
| Interfaces | Headphone/microphone combo jack 2 x USB 2.0 USB 3.2 Gen 1 USB-C 3.2 Gen 1 HDMI |
Headphone/microphone combo jack USB 3.1 Gen 1 USB 2.0 USB-C 3.1 Gen 2 HDMI |
| Memory Card Reader | - | Yes (SD Card) |
| SOFTWARE | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Operating System (OS) | Windows 11 Home | Windows 10 Home 64-bit Edition |
|---|
| MISCELLANEOUS | ASUS VivoBook 15 (X515FA) | ASUS VivoBook S14 (S431FA) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM) Security Chip | Firmware Trusted Platform Module (TPM) Security Chip |
| Security Slot Type | Kensington security slot | - |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
| Features | System password, hard drive password | System password, ErgoLift |
| SAR Value | - | 0.6 W/kg (body), 0.6 W/kg (limb) |
| Repairability Index | 5.9 (out of 10) | - |
| ENERGY STAR Certified | Yes | - |
| Model Number | EJ105W | AM016T |
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