Model & Positioning
Model name: ASUS VivoBook 15 X1504VAP-NJ2863WS
Series: VivoBook 15 (X1504 generation) — part of ASUS’s thin & light 15.6-inch lineup
Colour: Quiet Blue (“Blue”) variant, giving it a more stylish / distinctive finish
Processor & Performance
CPU: Intel “Core 5-120U” — base clock around 1.4 GHz, boost up to ~ 5.0 GHz in peak scenarios, with 12 MB cache. 
Core / Thread config: 10 cores (2 Performance + 8 Efficiency cores) and 12 threads. 
Graphics: Integrated Intel Graphics (UHD / basic integrated GPU) — this model does not typically come with a discrete GPU. 
Memory & Storage
RAM: 8 GB DDR4 soldered / onboard memory. 
Expandability: You can likely add RAM via a SO-DIMM slot (depending on the variant) to reach up to ~16 GB total. 
Storage: 512 GB NVMe SSD (M.2 PCIe) — typically the base / default for this variant. 
Storage expansion: There is an unused M.2 slot in many X1504 configurations for adding a second SSD. 
Display & Screen
Display: 15.6-inch Full HD (1920 × 1080) IPS-level / LED panel. 
Refresh rate: 60 Hz standard refresh. 
Brightness: ~ 250 nits typical. 
Color gamut: ~ 45% NTSC (a more modest color coverage, okay for general use) 
Anti-glare: Yes, anti-glare coating to reduce reflections. 
Screen-to-body ratio: ~ 84% (narrow bezels) in this series. 
Ports & Connectivity
USB ports:
  • 1 × USB 2.0 Type-A 
  • 2 × USB 3.2 Gen1 Type-A
  • 1 × USB 3.2 Gen1 Type-C 
HDMI: 1 × HDMI 1.4 output for external displays. 
Audio: Standard 3.5 mm audio combo jack (headset / mic) 
Wireless: WiFi 6 (802.11ax) + Bluetooth (modern version, e.g. v5.x) — for fast wireless connectivity. 
Physical / Build / Design
Weight: Around 1.70 kg in most X1504 configurations.
Thickness / profile: Slim, lightweight form factor — often ~ 17.9 mm or similar in spec sheets for X1504 line. 
Hinge: 180° lay-flat hinge design (lets the laptop open fully flat). 
Keyboard: Chiclet style keys; likely backlit in many variants (depending on exact SKU)
Webcam: Standard HD webcam (720p), often with privacy shutter in this series
Design touches: ASUS’s “Antimicrobial Guard Plus” is sometimes mentioned in X1504 series marketing, protecting touch surfaces from bacteria. 
Battery & Power
Battery: 42 Wh, 3-cell Li-ion battery is typical in this lineup. 
Charging & fast charge: In many VivoBook models, ASUS claims ~ 60% charge in ~ 49 minutes (when using the supplied charger) — check your specific SKU to confirm
Real-world battery life: Expect around 4 to 6 hours under moderate use (web, productivity) depending on brightness and workload
Software, Extras & Security
Operating System: Windows 11 Home (preinstalled)
Bundled Software: Many retail variants include Microsoft Office Home / M365 Basic (1 year) & sometimes antivirus suites
Extras: Dirac audio tuning, precision touchpad, possible fingerprint sensor (depending on variant)
Durability: Some models in X1504 series are marketed with MIL-STD compliance and extra build quality assurances in certain markets. 
Warranty 
Warranty: 1-year ASUS manufacturer warranty (standard for many ASUS laptops) — check with the seller / local ASUS support to confirm whether it is carry-in or on-site in your area