In depth comparison and review of ASUS VivoBook 15 (X505BA) and ASUS VivoBook S14 (S431FA). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
| DESIGN AND DIMENSIONS | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.14 cm x 24.35 cm x 1.99 cm | 32.33 cm x 21.37 cm x 1.8 cm |
| Weight | 1.68 kg | 1.4 kg |
| Colour | Star grey | Transparent silver |
| DISPLAY | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Screen Size (Type) | 15.6" | 14" |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | - | 250 cd/m² |
| Colour Gamut | 45% NTSC | 72% NTSC |
| Features | ASUS Splendid Video Intelligence Technology, anti-glare, NanoEdge display | Anti-glare, NanoEdge display, 178° viewing angle |
| PROCESSOR | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| CPU | AMD A6 9225 / 2.6 GHz | Intel Core i5 (8th Gen) 8265U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 3.1 GHz | 3.9 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 1 MB | - |
| 64-bit Computing | Yes | Yes |
| Features | - | Intel Turbo Boost Technology 2.0 |
| MEMORY | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| RAM | 4 GB | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 16 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR3 SDRAM |
| Speed | - | 2133 MHz |
| STORAGE | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Main Storage Size (HDD/SSD) | 1 TB HDD SATA | 256 GB SSD M.2 PCIe 3.0 x2 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Graphics Processor (GPU) | AMD Radeon R4 | Intel UHD Graphics 620 |
|---|---|---|
| Camera | Yes - VGA | Yes - HD |
| Camera Features | - | IR camera |
| Sound | Stereo speakers, microphone | Harman/kardon stereo speakers, array microphone |
| Audio Features | ASUS SonicMaster, ASUS AudioWizard | ASUS SonicMaster |
| COMMUNICATIONS | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|---|---|
| Network Interface | Gigabit Ethernet | - |
| BATTERY | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Technology | 3-cell | 2-cell lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 42 Wh | 47 Wh |
| AC ADAPTER | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Input | AC 120/230 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 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Type | Keyboard, touchpad | Keyboard, NumberPad |
|---|---|---|
| Keyboard Backlight | - | Yes |
| CONNECTIONS & EXPANSIONS | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Interfaces | Headphone/microphone combo jack USB 3.1 Gen 1 2 x USB 2.0 USB-C 3.1 Gen 1 HDMI LAN |
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, MultiMediaCard) | Yes (SD Card) |
| SOFTWARE | ASUS VivoBook 15 (X505BA) | ASUS VivoBook S14 (S431FA) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 10 Home 64-bit Edition |
|---|
| MISCELLANEOUS | ASUS VivoBook 15 (X505BA) | 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 | ASUS IceCool design, ASUS SuperBatt Technology, ASUS Battery Health charging technology | System password, ErgoLift |
| Compliant Standards | UL, TUV, C-Tick, BSMI, CB, CCC, MIC, RoHS, WEEE, A-Tick, GOST-R, CECP, ErP 2013 | - |
| SAR Value | - | 0.6 W/kg (body), 0.6 W/kg (limb) |
| ENERGY STAR Certified | Yes | - |
| Model Number | BR289T | AM016T |
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