Asus Vivobook S15 OLED (K3502, 12th Gen Intel) vs S14X OLED (S5402)

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Display 2880 x 1800


Evaluation of Asus Vivobook S15 OLED (K3502, 12th Gen Intel) and S14X OLED (S5402) important characteristics
System and application performance
Performance in popular 3D games
Viewing angle, color accuracy, brightness
Battery Life
Potential battery life in light and average use
Ports, webcam and other interfaces
Design, materials, durability and usability

Key Differences

What are the key differences between the notebooks
Advantages of the Asus Vivobook S15 OLED (K3502, 12th Gen Intel)
  • Thinner bezels and 3% higher screen-to-body ratio
  • Provides 9% higher max. screen brightness: 600 vs 550 nits
Advantages of the Asus Vivobook S14X OLED (S5402)
  • Higher screen refresh rate: 120 versus 60 Hz
  • Slightly easier to carry: weighs 170 grams less (around 0.37 lbs)
  • 66% sharper screen – 234 versus 141 pixels per inch (PPI)
  • Smaller footprint: 11% more compact case (115.3 vs 129.9 square inches)
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Tests and Specifications

Comparison table of test results and technical specs


Weight 1.8 kg (3.97 lbs) 1.63 kg (3.59 lbs)
Dimensions 359.8 x 232.9 x 18.9 mm
14.17 x 9.17 x 0.74 inches
322.3 x 230.9 x 17.9 mm
12.69 x 9.09 x 0.7 inches
Area 838 cm2 (129.9 inches2) 744 cm2 (115.4 inches2)
Screen-to-body ratio ~80.1% ~77.9%
Side bezels 7.2 mm 0.7 mm
Colors Black, Gray, Green Black, Silver, Gray
Transformer No No
Opening angle 180° 180°
Size comparison
Cooling solution
Cooling system Active Active
Vapor chamber No No
Number of fans 1 1
Noise level - 52.8 dB


Size 15.6 inches 14.5 inches
Refresh rate 60 Hz 120 Hz
PPI 141 ppi 234 ppi
Aspect ratio 16:9 16:9
Resolution 1920 x 1080 pixels 2880 x 1800 pixels
HDR support Yes, HDR10 Yes, HDR10
Touchscreen No No
Coating Matte Matte
Display tests
Contrast 1000000:1 1000000:1
sRGB color space - 100%
Adobe RGB profile - 95.5%
DCI-P3 color gamut - 99.9%
Response time 1 ms 1 ms


Full charging time - 1:30 hr
Battery type Li-Po Li-Ion
Replaceable No No
Fast charging Yes Yes
USB Power Delivery Yes Yes
Charging port position Right Right
Charge power 90 W 90 W
Weigh of AC adapter - 411 gramm


CPU name
Base frequency 2.5 GHz 2.5 GHz
Turbo frequency 4.5 GHz 4.5 GHz
Cores 12 12
Threads 16 16
L3 Cache 18 MB 18 MB
Integrated GPU Intel Iris Xe Graphics (80EU) Intel Iris Xe Graphics (80EU)
Fabrication process 10 nm 10 nm


Graphics Card

GPU name
TGP 15 W 15 W
Type Integrated Integrated
Fabrication process 10 nm 10 nm
GPU base clock 300 MHz 300 MHz
GPU boost clock 1100 MHz 1100 MHz
Memory size System Shared System Shared
Memory type DDR4 DDR4
Memory speed 3.2 Gbps 3.2 Gbps
Shading units (cores) 640 640
Texture mapping units (TMUs) 40 40
Raster operations pipelines (ROPs) 20 20


RAM size
Channels 1x4 GB 1x4 GB
Clock 3200 MHz 3200 MHz
Type DDR4 DDR4
Upgradable Yes Yes
Total slots 1 1
Max. ram size 16 GB 12 GB


Storage size
Bus PCI-E Gen 4.0 (4x) PCI-E Gen 4.0 (4x)
Storage type SSD (M2) SSD (M2)
Channels 1x256 GB 1x256 GB
Upgradable Yes Yes
Total slots 1 1
NVMe Yes Yes


Speakers 2.0 2.0
Dolby Atmos - No
Loudness - 77.7 dB
Microphones 2 2


Wi-Fi standard v6E v6E
Bluetooth v5.2 v5.2
Fingerprint Optional Yes
Optical drive No No
Webcam Above the display Above the display
Webcam resolution 1280 x 720 1280 x 720
USB-A 2x USB 3.2 2x USB 3.2
USB Type-C 2x USB 4.0 2x USB 3.2
Thunderbolt Thunderbolt 4 Thunderbolt 3.2
HDMI 1x HDMI 2.0 1x HDMI 2.0
DisplayPort No No
Audio jack (3.5 mm) Yes Yes
Ethernet (RJ45) No No
SD card reader No No
Proprietary charging port No No


Keyboard type Island Island
Numpad Yes No
Backlight Yes Yes
Key travel 1.4 mm 1.4 mm
Size - 13.0 x 7.5 cm
Surface Plastic Plastic
Windows Precision Yes Yes
*Disclaimer! Ports, speakers, display, and other specifications can be different depending on the laptop’s particular configuration or region.

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