Model & Positioning
Product name: ASUS VivoBook 15 X1504VAP-NJ542WS 
Released: 2024 version of VivoBook 15 line. 
Colour option: Quiet Blue. 
Processor & Performance
CPU: Intel “Core 5-120U” processor, base ~1.4 GHz, up to ~5.0 GHz turbo frequency. 10 cores (2 Performance + 8 Efficient), 12 threads. 
Integrated graphics only (using Intel’s onboard GPU). Good for everyday tasks, multimedia, light productivity. 
Memory & Storage
RAM: 16 GB DDR4 (8 GB onboard + 8 GB via SO-DIMM), expandable up to 24 GB (using the extra SO-DIMM slot) 
Storage: 512 GB NVMe PCIe 4.0 SSD, with an extra M.2 2280 slot for expansion in some variants 
Display & Visuals
Screen size: 15.6-inch (39.62 cm) Full HD (1920 × 1080)
Panel: Anti-glare, LED backlit, non-touch, ~250 nits brightness
Refresh rate: 60 Hz. 
Design features: NanoEdge display (slim bezels), TÜV Rheinland eye-care certified (to reduce blue light / eye strain) 
Ports & Connectivity
USB-C port: 1 × USB 3.2 Gen1 Type-C 
USB-A ports: 2 × USB 3.2 Gen1 Type-A, plus 1 × USB 2.0 Type-A 
HDMI: 1 × HDMI 1.4 
Audio: 3.5 mm combo jack (headset / mic) 
Wireless: WiFi 6 (802.11ax) dual-band, Bluetooth (~v5.2)
Design, Build & Other Features
Weight: ~ 1.70 kg 
Thickness: ~ 17.9 mm
Hinge: 180° lay-flat hinge – useful for sharing screen, flexible usage 
Webcam: 720p HD with privacy shutter (physical cover) 
Keyboard: Chiclet keyboard, full size, backlit in some variants (check specific listing) 
Battery & Charging
Battery: 42 Whr, 3-cell Li-ion pack 
Fast charging: ASUS claims it can reach ~ 60% battery in about 49 minutes using the adapter supplied. 
Software & Extras
Operating System: Windows 11 Home preinstalled 
Bundled software: Microsoft Office Home & Student 2021 (sometimes “Office with lifetime validity”) 
Other features: Dirac audio system, MORAs for better sound quality, Precision touchpad
Warranty 
Warranty: 1-year manufacturer’s limited warranty (onsite / international depending on region)