Lenovo ThinkPad X390 Yoga 8th‑Gen Intel Core i5

Processor: Intel Core i5‑8265U or i5‑8665U (4‑core, 8‑thread, 1.6 GHz base, up to 3.4–4.8 GHz Turbo, depending on SKU)

Memory: 16 GB DDR4‑2400 MHz soldered (not user-upgradeable)

Storage: 256 GB PCIe NVMe SSD (one replaceable M.2 slot)

Screen: 13.3″ Full HD (1920×1080) IPS touchscreen, ~300 nits brightness, anti-smudge coating, supported stylus input 

Graphics: Intel UHD Graphics 620 (integrated) — good for general productivity but limited for graphics-heavy use

Ports:

Thunderbolt 3 via USB‑C

USB‑C Gen 2 (AC power)

USB‑A ×2 (one Always‑On)

HDMI 1.4b

microSD slot & Ethernet extension connector

Headphone/mic combo jack

Smart card reader & optional NFC 

Wireless: Intel Dual‑Band Wireless‑AC 9560 or AX200 Wi‑Fi with Bluetooth 5.0, optional WWAN (LTE) module

Chassis: Magnesium alloy ultra-compact build, weighing ~1.3–1.4 kg, rugged 360° hinge with stylus garage 

Security: TPM 2.0, optional fingerprint reader, IR camera with ThinkShutter, smart card reader, FIDO support 

Input: ThinkPad keyboard, TrackPoint, touchpad, active pen support included in refurb units

Battery: 50 Wh internal Li‑ion battery with RapidCharge support; real-world battery life around 7–10 hours light use, less depending on battery health 

Thermals: Efficient cooling lets CPU sustain around 3–3.5 GHz under moderate loads; may throttle slightly under prolonged heavy CPU/GPU use