Lenovo ThinkPad X240 vs Lenovo ThinkPad X280

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ThinkPad X240 compared with ThinkPad X280

	LenovoThinkPad X240	LenovoThinkPad X280
Overview
Released
Released	October 2013	January 2018
Display
Screen size
Screen size	12.5″	12.5″
Resolution
Resolution	1366 × 768 or 1920 × 1080	1920 × 1080
Panel
Panel	TN LCD or IPS LCD	IPS LCD
Brightness
Brightness	200 nits, 300 nits or 400 nits (better)	300 nits
Touchscreen
Touchscreen	No or Yes	Yes
Display type
Display type	12.5-inch HD TN (200 nits), HD IPS (300 nits), or Full HD IPS (400 nits); optional ten-finger touch	Listed FHD IPS ten-point touch panel; FHD non-touch and HD 1366 × 768 options also offered; non-touch FHD not offered in US
Screen finish
Screen finish	Anti-glare	Anti-glare
Performance
Processor
Processor	Intel Core i5-4200U or Intel Core i5-4300U	Intel Core i5-8250U
CPU cores
CPU cores	2	4
CPU threads
CPU threads	4	8
Graphics
Graphics	Intel HD Graphics 4400	Intel UHD Graphics 620
Memory
Memory	4 GB or 8 GB	8 GB
Storage
Storage	128 GB to 500 GB	512 GB (better)
CPU
CPU	Fourth-generation Intel Core i3, i5 and i7 dual-core low-voltage processors; SoC platform	7th- or 8th-generation Intel Core processors; listed configuration verified by Windows Central
GPU
GPU	Integrated Intel HD Graphics 4400	Integrated Intel HD Graphics 620 or UHD Graphics 620, depending on processor
Memory type
Memory type	DDR3L-1600; one SO-DIMM socket, up to 8 GB	DDR4-2400 soldered to system board; no sockets, up to 16 GB; 4 GB option not offered in US or EMEA
Storage type
Storage type	Removable 2.5-inch SATA HDD, SSD or SSHD; optional M.2 SSD shares space with WWAN or smart card reader, depending on slot	Replaceable M.2 SATA or PCIe 3.0 ×4 NVMe SSD; listed configuration has a 512 GB PCIe SSD (Windows Central)
Battery and size
Battery life (maker's claim)
Battery life (maker's claim)	Up to 8.7 hours	Up to 16.6 hours
Battery capacity
Battery capacity	–	48 Wh
Weight
Weight	1.42 kg	1.27 kg (better)
Thickness
Thickness	19.9 mm	17.8 mm (better)
Width × depth
Width × depth	305.5 × 208.5 mm	307.7 × 209.8 mm
Battery life detail
Battery life detail	Optional internal 23.5 Wh battery; removable external 23.5 Wh, 47.5 Wh or 72 Wh battery; internal plus 23.5 Wh external up to 8.7 hours, plus 47.5 Wh up to 13.1 hours, plus 72 Wh up to 17.4 hours; weight shown with internal and three-cell external batteries, non-touch	Integrated 48 Wh battery; up to 16.6 hours in MobileMark 2014; Rapid Charge up to 80% in one hour with 65 W adapter; weight shown for touch configuration, non-touch FHD starts at 1.13 kg, HD at 1.26 kg; body thickness 17.4–17.8 mm
Charger
Charger	45 W	45 W or 65 W USB-C adapter
Materials
Materials	Glass-fibre reinforced plastic	Glass-fibre display cover on HD and FHD touch models; carbon-fibre cover on FHD non-touch; magnesium/aluminium bottom
Colours
Colours	Black	Black
Connections
Ports
Ports	2 × USB-A, Ethernet, SD card slot, headphone jack	2 × USB-A, 2 × USB-C, Thunderbolt, HDMI, microSD slot, headphone jack
Wi-Fi
Wi-Fi	802.11b/g/n or 802.11a/b/g/n; optional 802.11ac	Intel Wireless-AC 8265, 2×2 802.11ac
Bluetooth
Bluetooth	Optional Bluetooth 4.0	Bluetooth 4.1
Webcam
Webcam	Optional 720p	Optional 720p with ThinkShutter, or IR plus 720p without shutter
Operating system
Operating system	Windows	Windows
Port detail
Port detail	Two USB 3.0 (one Always On), VGA, Mini DisplayPort, Gigabit Ethernet, combo audio jack, SD/MMC/SDHC/SDXC reader, optional smart card and SIM slot; docking connector	Two USB-A 3.1 Gen 1, USB-C Gen 1 with PD/DisplayPort, USB-C Gen 2/Thunderbolt 3 with PD/DisplayPort, HDMI 1.4b, Ethernet extension connector, microSD/nano-SIM combo slot, combo audio and side dock; optional smart card reader; RJ-45 requires ThinkPad Ethernet Extension Adapter Gen 2
External displays
External displays	Three independent displays; Mini DisplayPort up to 3840 × 2160 at 30 Hz on integrated graphics; VGA up to 1920 × 1200 at 60 Hz	Up to three independent displays; USB-C up to 4096 × 2304 at 60 Hz, HDMI up to 4096 × 2160 at 30 Hz
Keyboard
Keyboard	Six-row spill-resistant keyboard; TrackPoint; optional backlight	Six-row spill-resistant keyboard with optional LED backlight
Trackpad
Trackpad	UltraNav multi-touch touchpad; five buttons integrated into the clickpad	Buttonless Mylar multi-touch touchpad and TrackPoint
Speakers
Speakers	1.5 W × 2 stereo speakers	Stereo speakers, 2 W × 2, Dolby Audio Premium
Microphones
Microphones	Dual-array microphone	Dual-array microphones
Biometrics
Biometrics	Optional swipe fingerprint reader; TPM 1.2	Optional touch fingerprint reader or IR camera; discrete TPM 2.0