In depth comparison and review of ASUS VivoBook 15 (X505BA) and ASUS ZenBook S UX391UA (ET087T). 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.
Advantages and disadvantages of ASUS VivoBook 15 (X505BA) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
decent processor performance
ample storage capacity
good keyboard layout
average display quality
no backlit keyboard
limited graphics performance
mediocre battery life
Advantages and disadvantages of ASUS ZenBook S UX391UA (ET087T) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
decent processor performance
ample storage capacity
good keyboard layout
average display quality
no backlit keyboard
limited graphics performance
mediocre battery life
| DESIGN AND DIMENSIONS | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.14 cm x 24.35 cm x 1.99 cm | 31.1 cm x 21.3 cm x 1.29 cm |
| Weight | 1.68 kg | 1 kg |
| Colour | Star grey | Deep dive blue |
| DISPLAY | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Screen Size (Type) | 15.6" | 13.3" |
|---|---|---|
| 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 | - | 300 cd/m² |
| Colour Gamut | 45% NTSC | 72% NTSC |
| Features | ASUS Splendid Video Intelligence Technology, anti-glare, NanoEdge display | Ultra Slim Design, anti-glare, WideView, 178° horizontal and vertical viewing angle |
| PROCESSOR | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| CPU | AMD A6 9225 / 2.6 GHz | Intel Core i7 (8th Gen) 8550U / 1.8 GHz |
|---|---|---|
| Max Turbo Speed | 3.1 GHz | 4 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 1 MB | 8 MB |
| 64-bit Computing | Yes | Yes |
| Features | - | Intel Turbo Boost Technology 2.0 |
| MEMORY | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| RAM | 4 GB | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 16 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR3 SDRAM |
| Speed | - | 2133 MHz |
| Rated Speed | - | 2133 MHz |
| STORAGE | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Main Storage Size (HDD/SSD) | 1 TB HDD SATA | 256 GB SSD M.2 SATA 6Gb/s |
|---|
| AUDIO & VIDEO | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Graphics Processor (GPU) | AMD Radeon R4 | Intel UHD Graphics 620 |
|---|---|---|
| Camera | Yes - VGA | Yes - HD |
| Sound | Stereo speakers, microphone | Harman/kardon stereo speakers, array microphone |
| Audio Features | ASUS SonicMaster, ASUS AudioWizard | ASUS SonicMaster |
| COMMUNICATIONS | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| 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 ZenBook S UX391UA (ET087T) |
|---|
| Technology | 3-cell | 4-cell |
|---|---|---|
| Battery Capacity (Size) | 42 Wh | 50 Wh |
| Battery Life | - | Up to 13.5 hours |
| AC ADAPTER | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19 V, 2.37 A | 65 Watt, 20 V |
| INPUT | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Keyboard Backlight | - | Yes |
| CONNECTIONS & EXPANSIONS | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| 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-C 3.1 Gen 1 (Power Delivery/data/video) 2 x USB-C 3.1 Gen 2 (supports Thunderbolt 3) (Power Delivery/data/video) |
|---|---|---|
| Memory Card Reader | Yes (SD Card, MultiMediaCard) | - |
| SOFTWARE | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 10 Home |
|---|
| MISCELLANEOUS | ASUS VivoBook 15 (X505BA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Included Accessories | Power adapter | USB-C 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 | - |
| Compliant Standards | UL, TUV, C-Tick, BSMI, CB, CCC, MIC, RoHS, WEEE, A-Tick, GOST-R, CECP, ErP 2013 | - |
| ENERGY STAR Certified | Yes | - |
| Model Number | BR289T | - |
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