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Laptop comparison

Lenovo ThinkPad X1 Carbon Gen 12 (Core Ultra 7 155U) vs Lenovo ThinkPad T14s Gen 1 x360 (Core Ultra 7 255U)

Compare performance, display, memory, battery and ports.

Compared products
01Selected
Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSD

Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSD

  • 14 inch screen.
  • Intel Core Ultra 7 155U processor.
  • Storage: M.2 2280 PCIe Gen4 NVMe SSD, Opal 2.0.
  • 32 GB RAM in this version.
  • 57 Wh of stored energy.
KSh 235,000Out of Stock
02
Lenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD

Lenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD

  • 1,400 g.
  • Screen: 1920 × 1200 (WUXGA).
  • 60 Hz display refresh rate.
  • Intel Core Ultra 7 255U processor.
  • Storage: M.2 PCIe 4.0 x4 NVMe Opal 2.0 SSD.
KSh 196,000In Stock
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2 spaces available

Apple MacBook Air 15-inch, M5KSh 227,000
Lenovo ThinkPad X1 Carbon Gen 11, Core i7-1365U vPro, 16GB RAM, 1TB SSDKSh 260,000
Lenovo Legion 5, Core i9-14900HX, 32GB RAM, 1TB SSD, RTX 5070 8GBKSh 265,000
Lenovo Legion 5i, Core Ultra 9 275HX, 32GB RAM, 1TB SSD, RTX 5060 8GBKSh 245,000
Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 165U vPro, 64GB RAM, 512GB SSDKSh 225,000
Lenovo Legion 5, Core i9-14900HX, 16GB RAM, 1TB SSD, RTX 5070 8GBKSh 255,000
Apple MacBook Air 13-inch, M1KSh 93,000
2 of 4 products

Our quick verdict

Choose the Lenovo ThinkPad X1 Carbon Gen 12 if you want more memory (32 GB RAM), an OLED display and a lighter build (about 1.08 kg). Choose the Lenovo ThinkPad T14s Gen 1 x360 if you want more storage (1 TB), stylus support and a higher boost clock (5.2 GHz).

Performance

Lenovo ThinkPad X1 Carbon Gen 12
Intel Core Ultra 7 155U processor
Lenovo ThinkPad T14s Gen 1 x360
Intel Core Ultra 7 255U processor

Storage

Lenovo ThinkPad X1 Carbon Gen 12
M.2 2280 PCIe Gen4 NVMe SSD, Opal 2.0
Lenovo ThinkPad T14s Gen 1 x360
M.2 PCIe 4.0 x4 NVMe Opal 2.0 SSD

Memory

Lenovo ThinkPad X1 Carbon Gen 12
32 GB RAM in this version
Lenovo ThinkPad T14s Gen 1 x360
16 GB RAM in this version

Stored energy

Lenovo ThinkPad X1 Carbon Gen 12
57 Wh of stored energy
Lenovo ThinkPad T14s Gen 1 x360
58 Wh of stored energy

Display

Lenovo ThinkPad X1 Carbon Gen 12
14-inch OLED display
Lenovo ThinkPad T14s Gen 1 x360
14-inch LCD display, 60 Hz

Key differences

The main differences to help you choose.

Lenovo ThinkPad X1 Carbon Gen 12

  • More memory: 32 GB RAM (vs 16 GB).
  • OLED display (vs LCD).
  • Lighter: about 1.08 kg (vs about 1.4 kg).
  • Slimmer: 14.96 mm thick (vs 16.4 mm).

Lenovo ThinkPad T14s Gen 1 x360

  • More storage: 1 TB (vs 512 GB).
  • Stylus support.
  • Higher boost clock: up to 5.2 GHz (vs 4.8 GHz).

What matters most to you?

Choose any priorities

How each product answers the questions buyers ask most. Tick a topic to add it, untick one to hide it.

More topicsFewer topics
6 priorities selected.
How each product answers the selected priorities
PriorityLenovo ThinkPad X1 Carbon Gen 12Lenovo ThinkPad T14s Gen 1 x360
PerformanceIntel Core Ultra 7 155U processor, Integrated Intel graphicsIntel Core Ultra 7 255U processor, Integrated Intel graphics
Memory32 GB RAM16 GB RAM
Storage512 GB storage1 TB storage
Display14-inch OLED display14-inch LCD display, 60 Hz
Battery life57 Wh rechargeable lithium-ion58 Wh
WeightAbout 1.08 kgAbout 1.4 kg

Detailed comparison

Explore the full specifications, section by section.

General

General specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
BrandLenovoLenovo
ModelLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155UThinkPad T14s 2-in-1 Gen 1
Announced20242025
Form FactorClamshell2-in-1 convertible laptop
ColorBlackBlack

Design

Design specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
Dimensions312.80 × 214.75 × 14.96 mm313.6 × 219.4 × 16.4 mm
WeightStarting at 1.08 kg; configuration dependentStarting at 1.4 kg
Build Materialscarbon fiber buildAluminium chassis with 360° hinge

Display

Display specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
Display Size14 inches14-inch
Display TypeIPS or OLED depending on panel configurationIPS anti-reflection touchscreen
Resolution1920 × 1200 IPS or 2880 × 1800 OLED, depending on configuration1920 × 1200 (WUXGA)
Refresh Rate—60 Hz
Brightness—400 nits
Touchscreen—Yes, 10-point multi-touch
Display Features—16:10, 100% sRGB, low-power panel, Corning Gorilla Glass

Performance

Performance specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
ProcessorIntel Core Ultra 7 155UIntel Core Ultra 7 255U
CPU12 cores, 14 threads, up to 4.8GHz12 cores (2 P-cores + 8 E-cores + 2 LP E-cores), 14 threads; up to 5.2 GHz; 12 MB Intel Smart Cache; Intel AI Boost NPU
GPUIntegrated Intel GraphicsIntegrated Intel Graphics
Graphics MemoryShared system memoryShared system memory
RAM TypeLPDDR5x-6400; soldered, no memory slotsSoldered LPDDR5x
Storage TypeM.2 2280 PCIe Gen4 NVMe SSD, Opal 2.0M.2 PCIe 4.0 x4 NVMe Opal 2.0 SSD

Memory & Storage

Memory & Storage specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
RAM32GB16 GB
Storage512GB1 TB

Battery & Charging

Battery & Charging specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
Battery57 Wh rechargeable lithium-ion58 Wh
ChargingRapid Charge: up to 80% in 1 hour with 65 W adapter and system off/standbyRapid Charge supported
Power Adapter45 W or 65 W USB-C Power Delivery 3.0 AC adapter platform options65 W USB-C AC adapter
Battery Life—Varies by workload and configuration

Software

Software specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
Operating SystemWindows 11 Pro/Home or Linux/no preload, depending on configurationWindows 11 Pro

Connectivity

Connectivity specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
Wi-FiWi-Fi 6E AX211; Wi-Fi 7 BE200 on selected configurationsWi-Fi 6E (802.11ax 2×2)
Bluetooth5.3; selected Wi-Fi 7 hardware is 5.4 readyBluetooth 5.3
EthernetNo built-in EthernetNo built-in Ethernet; adapter supported

Camera & Audio

Camera & Audio specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
WebcamFHD 1080p + IR or 8 MP + IR, depending on display configuration; privacy shutter5 MP + IR webcam with privacy shutter
Speakers2 × 2 W stereo speakers2 × 2 W stereo speakers
MicrophonesDual far-field microphone arrayDual-array microphones
Audio FeaturesDolby Atmos; Dolby Voice; Realtek ALC3306Dolby Audio; Dolby Voice

Keyboard & Input

Keyboard & Input specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
KeyboardSpill-resistant six-row ThinkPad keyboardSpill-resistant 360° convertible ThinkPad keyboard
Keyboard BacklightYesLED backlight
TrackpadGlass Trackpad with TrackPoint; haptic touchpad optional by configurationTrackPoint and Precision multi-touch trackpad
Fingerprint ReaderMatch-on-chip fingerprint reader in power buttonFingerprint reader integrated with power button
Stylus SupportNoYes; garaged rechargeable ThinkPad Pen

Ports

Ports specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
USB-A2 × USB-A 5 Gbps; one Always On2 × USB-A 5 Gbps
USB-C2 × Thunderbolt 4 / USB4 40 Gbps, Power Delivery 3.0 and DisplayPort 2.12 × Thunderbolt 4 / USB4 USB-C
Thunderbolt / USB42 × Thunderbolt 4 / USB4 40 Gbps2 × Thunderbolt 4 / USB4
HDMIHDMI 2.1; up to 4K at 60 HzHDMI 2.1
DisplayPortDisplayPort 2.1 over Thunderbolt 4DisplayPort via USB-C / Thunderbolt
Memory Card ReaderNo card readerNo
3.5mm Audio Jack3.5 mm headphone/microphone combo3.5 mm headphone/microphone combo jack
Other Ports—Kensington security slot

Additional Features

Additional Features specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
SecurityDiscrete TPM 2.0; camera privacy shutter; Kensington Nano lock slotDiscrete TPM 2.0; fingerprint reader; IR camera; webcam privacy shutter
Special FeaturesIntel AI Boost NPU; TrackPoint Quick Menu; MIL-STD-810H tested360° hinge; garaged pen; MIL-STD-810H tested
Cooling—Active fan cooling

What's in the Box

What's in the Box specifications comparison
SpecificationLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSD
LaptopLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155UThinkPad T14s Gen 1 X360 – Ultra 7 255U, 16GB RAM, 1TB SSD

Similarities

  • Both use Bluetooth 5.3.
  • Both have a 3.5 mm headphone jack.
  • Both have stereo speakers.
  • Both have 14-inch screens.
  • Both have built-in microphones for calls.
  • Both connect over Bluetooth.

In summary

Choose ThinkPad X1 Carbon Gen 12 for more memory and an OLED screen; ThinkPad T14s Gen 1 x360 offers more storage and stylus support.

Back to compared products ↑

In-stock alternatives

Apple MacBook Air 15-inch, M5For Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDApple MacBook Air 15-inch, M5View product ↗HP OmniBook 7 Flip 16-au0773cl, Core Ultra 7 258V, 32GB RAM, 1TB SSDFor Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDHP OmniBook 7 Flip 16-au0773cl, Core Ultra 7 258V, 32GB RAM, 1TB SSDView product ↗HP OmniBook Ultra Flip 14, Core Ultra 7 256V, 16GB RAM, 1TB SSDFor Lenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSDHP OmniBook Ultra Flip 14, Core Ultra 7 256V, 16GB RAM, 1TB SSDView product ↗Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 165U vPro, 64GB RAM, 512GB SSDFor Lenovo ThinkPad T14s Gen 1 x360, Core Ultra 7 255U, 16GB RAM, 1TB SSDLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 165U vPro, 64GB RAM, 512GB SSDView product ↗

Related comparisons

Lenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDApple MacBook Air 15-inch, M5Lenovo ThinkPad X1 Carbon Gen 11, Core i7-1365U vPro, 16GB RAM, 1TB SSDLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo Legion 5, Core i9-14900HX, 32GB RAM, 1TB SSD, RTX 5070 8GBLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo Legion 5i, Core Ultra 9 275HX, 32GB RAM, 1TB SSD, RTX 5060 8GBLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 165U vPro, 64GB RAM, 512GB SSDLenovo ThinkPad X1 Carbon Gen 12, Core Ultra 7 155U, 32GB RAM, 512GB SSDLenovo Legion 5, Core i9-14900HX, 16GB RAM, 1TB SSD, RTX 5070 8GB
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