Lenovo ThinkPad T14s Gen 5 21LS0049US Laptop vs Lenovo ThinkPad X1 Carbon Gen 12 21KC00A7US Laptop

Here you can compare Lenovo ThinkPad T14s Gen 5 21LS0049US … and Lenovo ThinkPad X1 Carbon Gen 12 21KC0…. Comparing Lenovo ThinkPad T14s Gen 5 21LS0049US … vs Lenovo ThinkPad X1 Carbon Gen 12 21KC0… on Smartprix enables you to check their respective specs scores and unique features. It would potentially help you understand how Lenovo ThinkPad T14s Gen 5 21LS0049US … stands against Lenovo ThinkPad X1 Carbon Gen 12 21KC0… and which one should you buy The current lowest price found for Lenovo ThinkPad T14s Gen 5 21LS0049US … is $1,578.99 and for Lenovo ThinkPad X1 Carbon Gen 12 21KC0… is $2,406.99. The details of both of these products were last updated on Jan 19, 2026.

SpecificationLenovo ThinkPad T14s Gen 5 21LS0049US …Lenovo ThinkPad X1 Carbon Gen 12 21KC0…
Display14 inches14 inches
CPUIntel Core Ultra 5 135UIntel Core Ultra 7 155U
GPUIntel Integrated GraphicsIntegrated Intel Graphics
RAM32 GB LPDDR5x32 GB LPDDR5x
HDD
Price$1,578.99$2,406.99
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Overview

Specs Score94 / 100
Better Specs
93 / 100
CPU Clock Speed1.6 GHz1.7 GHz
Faster Clock Speed
Thickness16.9 mm14.96 mm
Slimmer
Weight1.24 kg1.08 kg
Lighter

General

SeriesThinkPad T14s Gen 5ThinkPad X1 Carbon Gen 12
Model21LS0049US21KC00A7US
UtilityEveryday UseBusiness, Everyday Use
Device TypeNetbookNetbook
OSWindows 11 Pro (64-bit)Windows 11 Pro (64-bit)
Dimensions313.6 x 219.4 x 16.9 mm312.8 x 214.75 x 14.96 mm
Weight1.24 kg1.08 kg
Warranty1 year Warranty3 years Warranty

Display

TypeIPSIPS
TouchYesYes
Size14 inches14 inches
Resolution1920 x 1200 pixels1920 x 1200 pixels
PPI~ 162 PPI~ 157 PPI
Refresh Rate60 Hz
Aspect Ratio16:1016:10
Anti Glare ScreenYesYes
Features45% NTSC, 400 nits, 10-point Multi-Touch400 nits, 100% sRGB, Low Power, 10-point Multi-touch

Connectivity

EthernetNoNo
WiFiIntel Wi-Fi 6E AX211, 802.11ax 2x2Intel Wi-Fi 6E AX211, 802.11ax 2x2
Bluetoothv5.3v5.3
USB Ports2 x USB Type-C, 2 x USB Type-A2 x USB Type-C, 2 x USB Type-A
USB Port Details1 x USB 3.2 Gen 1 Type-A, 1 x USB 3.2 Gen 1 Type-A (Always On)1 x USB 3.2 Gen 1 Type-A, 1 x USB 3.2 Gen 1 Type-A (Always On)
Thunderbolt2 x Thunderbolt 4 (USB PD 3.1, DisplayPort 2.1, 40 Gbps)2 x Thunderbolt 4 (40 Gbps, USB PD 3.0 and DisplayPort 2.1)
HDMI1 x HDMI v2.1 Port1 x HDMI v2.1 Port
Fingerprint SensorYesYes
Microphone InYesYes
Headphone JackYesYes
Security Lock PortKensington Nano Security Lock SlotKensington Nano Security Slot, 2.5 x 6 mm

Input

CameraYes, 5 MPFHD 1080p + IR Discrete with Privacy Shutter
KeyboardBacklit, English
Keyboard BacklitYesYes
TouchpadYesYes
Inbuilt Microphone2 x 360° MicrophonesDual Array Digital Microphones
Speakers2 x 2W2 x 2W
Optical DriveNoNo

Processor

ProcessorIntel Core Ultra 5 135UIntel Core Ultra 7 155U
Speed2 x 1.6 GHz (Turbo Speed upto 4.4 GHz) Performance Cores
8 x 1.1 GHz (Turbo Speed upto 3.6 GHz) Efficient Cores
2 x 700 MHz (Turbo Speed upto 2.1 GHz) Low Power Efficient Cores
2 x 1.7 GHz (Turbo Speed upto 4.8 GHz) Performance Cores
8 x 1.2 GHz (Turbo Speed upto 3.8 GHz) Efficient Cores
2 x 700 MHz (Turbo Speed upto 2.1 GHz) Low Power Efficient Cores
Cores12 Cores (2P + 8E + 2LP-E), 14 Threads12 Cores (2P + 8E + 2LP-E), 14 Threads
Cache12 MB12 MB
BrandIntelIntel
SeriesCore Ultra 5Core Ultra 7
Model135U155U
GenerationIntel Core Ultra Series 1Intel Core Ultra Series 1

Graphics

GPUIntel Integrated GraphicsIntegrated Intel Graphics
BrandIntelIntel

Memory

RAM32 GB LPDDR5x32 GB LPDDR5x
RAM Bus Speed6400 MHz6400 MHz
Maximum RAM SupportedUpto 32 GB
Solid State Drive512 GB SSD512 GB SSD
SSD InterfaceNVMe PCIe Gen4NVMe PCIe Gen4

Battery

Battery58 Wh Battery57 Wh Battery
Adapter Type65W USB-C Adapter65W USB-C Slim (2-pin) Power Adapter

Extra

Included SoftwareIntel Connectivity Performance Suite
Other FeaturesIntegrated Intel AI Boost, up to 11 TOPS, Carbon Fiber (Top), Aluminium (Bottom), Discrete TPM 2.0 Enabled

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