Hardware Spec Index

Kestrix LX-4121 Ultra 13.3" Ultrabook Laptop

Laptops · Kestrix · SKU LX4121-ULTRA · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index8,808 (Laptops scale)
Category rank#23,998
Street price$689
Power65 W (charger)
Performance per dollar12.78
Released2025

Specifications

BrandKestrix
ModelKestrix LX-4121 Ultra
ClassUltrabook
Processor10-core mobile CPU, up to 4.7 GHz
GraphicsIntegrated graphics
NPU45 TOPS
Memory16 GB LPDDR5X-8533 (soldered)
Storage512 GB PCIe 4.0 NVMe (M.2 2230)
Display13.3" 1920×1200 60 Hz IPS
Battery57 Wh
Weight1.14 kg
Ports2× Thunderbolt 4 / USB4 (40Gbps), 1× USB-A 10Gbps, HDMI 2.1
WirelessWi-Fi 7 (2×2, 320 MHz) + Bluetooth 5.4
Charger65 W USB-C PD

Related guides

DDR5 Memory ExplainedWi-Fi 7 (802.11be) ExplainedUSB4 ExplainedNPUs and AI PCsThunderbolt 5 ExplainedGDDR7 Memory Explained

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Cite this page: Hardware Spec Index, “Kestrix LX-4121 Ultra 13.3" Ultrabook Laptop”, https://vextor7.com/item/30454842 (accessed 2026-10-22).