ASUS VivoBook S14 (S435EA) vs. ASUS ZenBook S UX391UA (ET087T)

Laptop Comparison, Reviews and Tests

In depth comparison and review of ASUS VivoBook S14 (S435EA) 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.

ASUS VivoBook S14 (S435EA) Review

Advantages and disadvantages of ASUS VivoBook S14 (S435EA) based on its technical characteristics, features, user experience, expert reviews and price level.

affordable price

solid build quality

decent battery life

lightweight design

fast ssd storage

average display quality

limited graphics performance

no backlit keyboard

fewer usb-c ports

ASUS ZenBook S UX391UA (ET087T) Review

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

Laptop Comparison and Tests

Difference between ASUS VivoBook S14 (S435EA) and ASUS ZenBook S UX391UA (ET087T)
85 % - Design
85 % - Display
78 % - Performance
84 % - Connectivity
75 % - Battery
85 % - Design
84 % - Display
85 % - Performance
75 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

ASUS VivoBook S14 (S435EA) vs. ASUS ZenBook S UX391UA (ET087T) Comparison Chart
DESIGN AND DIMENSIONS ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Product Type Notebook Notebook
Dimensions (WxDxH) 32.22 cm x 20.4 cm x 1.59 cm 31.1 cm x 21.3 cm x 1.29 cm
Weight 1.3 kg 1 kg
Colour Deep green Deep dive blue
DISPLAY ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Screen Size (Type) 14" 13.3"
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 400 cd/m² 300 cd/m²
Colour Gamut 100% sRGB 72% NTSC
Features Anti-glare, NanoEdge display, 178° viewing angle, IPS-level, 90% screen-to-body ratio Ultra Slim Design, anti-glare, WideView, 178° horizontal and vertical viewing angle
PROCESSOR ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
CPU Intel Core i5 (11th Gen) 1135G7 / 2.4 GHz Intel Core i7 (8th Gen) 8550U / 1.8 GHz
Max Turbo Speed 4.2 GHz 4 GHz
Number of Cores Quad-Core Quad-Core
Cache 8 MB 8 MB
64-bit Computing - Yes
Platform Technology Intel Evo -
Features Intel Smart Cache Intel Turbo Boost Technology 2.0
MEMORY ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
RAM 8 GB (provided memory is soldered) 8 GB (provided memory is soldered)
RAM Type LPDDR4X SDRAM LPDDR3 SDRAM
Speed - 2133 MHz
Rated Speed - 2133 MHz
STORAGE ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Main Storage Size (HDD/SSD) 512 GB SSD M.2 PCIe - NVM Express (NVMe) 256 GB SSD M.2 SATA 6Gb/s
SSD Cache 32 GB 3D Xpoint (Optane) -
AUDIO & VIDEO ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Graphics Processor (GPU) Intel Iris Xe Graphics Intel UHD Graphics 620
Video System Features Functions as Intel UHD graphics (for single-channel memory) -
Camera Yes - 720p Yes - HD
Sound Harman/kardon stereo speakers, array microphone Harman/kardon stereo speakers, array microphone
Audio Features AI noise cancelling ASUS SonicMaster
COMMUNICATIONS ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Wireless Bluetooth 5.0, 802.11a/b/g/n/ac/ax 802.11a/b/g/n/ac, Bluetooth 4.2
Features Dual stream (2x2) -
BATTERY ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Technology 4-cell Lithium Ion 4-cell
Battery Capacity (Size) 67 Wh 50 Wh
Battery Life - Up to 13.5 hours
AC ADAPTER ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Input AC 100-240 V (50/60 Hz) AC 120/230 V (50/60 Hz)
Output 65 Watt, 20 V, 3.25 A 65 Watt, 20 V
INPUT ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Type Keyboard, touchpad, NumberPad 2.0 Keyboard, touchpad
Keyboard Backlight Yes Yes
Features Chiclet keyboard, 1.4mm travel distance -
CONNECTIONS & EXPANSIONS ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Interfaces Headphone/microphone combo jack
2 x USB-C (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery)
USB 3.2 Gen 1
HDMI
USB 2.0
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 (microSD) -
SOFTWARE ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Operating System (OS) Windows 11 Home Windows 10 Home
MISCELLANEOUS ASUS VivoBook S14 (S435EA) ASUS ZenBook S UX391UA (ET087T)
Included Accessories Power adapter USB-C power adapter
Security Firmware Trusted Platform Module (TPM) Security Chip, fingerprint reader Firmware Trusted Platform Module (TPM) Security Chip
Features System password -
Compliant Standards TUV Rheinland Low Blue Light Certification, TUV Rheinland Flicker Free Certification -
ENERGY STAR Certified Yes -
Model Number HM003T -
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