Lenovo ThinkPad X1 Carbon Gen 10 (21CB) vs. Lenovo ThinkBook 14 G4 IAP (21DH)

Laptop Comparison, Reviews and Tests
Lenovo ThinkPad X1 Carbon Gen 10 (21CB)

Detailed comparison and review of Lenovo ThinkPad X1 Carbon Gen 10 (21CB) and Lenovo ThinkBook 14 G4 IAP (21DH). With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.

Laptop Specifications Comparison

Lenovo ThinkPad X1 Carbon Gen 10 (21CB) vs. Lenovo ThinkBook 14 G4 IAP (21DH) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Product Type Notebook - 180-degree hinge design Notebook
Dimensions (WxDxH) 31.56 cm x 22.25 cm x 1.536 cm 32.3 cm x 21.8 cm x 1.79 cm
Weight 1.12 kg 1.4 kg
Case Material Aluminium (bottom), carbon fibre (top) Aluminium (top), aluminium (bottom)
Colour Deep black weave Dual tone mineral grey
DISPLAY Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Screen Size (Type) 14" OLED 14" - IPS
LCD Backlight Technology - LED backlight
Screen Resolution 2880 x 1800 (2.8K) 1920 x 1080 (Full HD)
Widescreen Yes Yes
Image Aspect Ratio 16:10 16:9
Image Brightness 400 cd/m² 300 cd/m²
Colour Gamut 100% DCI-P3 45% NTSC
Features Anti-glare, anti-reflective, anti-smudge, 170° viewing angle, Eyesafe technology, HDR 500 True Black Anti-glare, 170° viewing angle
PROCESSOR Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
CPU Intel Core i5 (12th Gen) 1235U / 1.3 GHz Intel Core i5 (12th Gen) 1235U / 1.3 GHz
Max Turbo Speed 4.4 GHz 4.4 GHz
Number of Cores 10-core 10-core
Cache 12 MB 12 MB
Platform Technology Intel Evo -
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
RAM 16 GB (provided memory is soldered) 8 GB (provided memory is soldered)
Max RAM Supported - 40 GB
RAM Type LPDDR5 SDRAM DDR4 SDRAM
Speed 5200 MHz 3200 MHz
Rated Speed 5200 MHz 3200 MHz
Form Factor - SO-DIMM 260-pin
Slots Qty - 1
Empty Slots - 1
STORAGE Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Main Storage Size (HDD/SSD) 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance 256 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Graphics Processor (GPU) Intel Iris Xe Graphics Intel Iris Xe Graphics
Max Monitors Supported 3 external monitor(s) 3 external monitor(s)
Camera Yes - 1080p Yes - 1080p
Camera Features Privacy shutter, IR camera, fixed focus, MIPI, Computer Vision Privacy shutter, fixed focus
Sound Two tweeters, two woofers, quad array microphone Stereo speakers, dual array microphone
Codec Realtek ALC3306 Realtek ALC3287
Compliant Standards High Definition Audio, Dolby Atmos, Dolby Voice High Definition Audio, Dolby Audio
COMMUNICATIONS Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Wireless NFC, Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) 802.11a/b/g/n/ac/ax, Bluetooth 5.2
Wireless Controller Intel Wi-Fi 6E AX 211 M.2 Card
Network Interface - Gigabit Ethernet
Features Dual stream (2x2) Wake-on-LAN (WOL), dual stream (2x2)
WWAN
Generation 4G upgradable -
BATTERY Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Technology Lithium polymer Lithium polymer
Battery Capacity (Size) 57 Wh 45 Wh
Battery Life Up to 24.9 hours Up to 8 hours
Battery Run Time - Local video (1080p) playback time (150 nits): up to 8 hours
AC ADAPTER Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 65 Watt
INPUT Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Type Keyboard, TrackPoint, UltraNav Keyboard, touchpad
Keyboard Backlight Yes Yes
Features Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad, air intake key design Spill-resistant, multi-touch touchpad, buttonless touchpad, precision touchpad
CONNECTIONS & EXPANSIONS Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Slots 1 x Nano-SIM card (1 free) 2 x M.2 (PCI Express 4.0 x4) (1 free)
Interfaces USB 3.2 Gen 1
USB 3.2 Gen 1 (Always On)
2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery 3.0)
HDMI
Headphone/microphone combo jack
USB 3.2 Gen 1
USB 3.2 Gen 1 (Always On)
USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
USB-C (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
HDMI
LAN
Headphone/microphone combo jack
Memory Card Reader - 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card)
SOFTWARE Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Operating System (OS) Windows 11 Pro - English Windows 11 Pro - English
Software Included Glance by Mirametrix, Intel Connectivity Performance Suite Microsoft Office (Trial)
MISCELLANEOUS Lenovo ThinkPad X1 Carbon Gen 10 (21CB) Lenovo ThinkBook 14 G4 IAP (21DH)
Included Accessories USB-C slim power adapter USB-C slim wall mount power adapter
Security Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader
Security Slot Type Kensington nano security slot Kensington nano security slot
Theft/Intrusion Protection Security lock slot (cable lock sold separately) Security lock slot (cable lock sold separately)
Features Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0 Administrator password, hard drive password, power-on password, Rapid Charge Pro
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified RoHS, Energy-Related Products (ErP) Lot 6, TUV Rheinland Low Blue Light (Software Solution)
ENERGY STAR Certified Yes Yes
EPEAT Compliant EPEAT Gold EPEAT Gold
Max Operating Temperature 35 °C 35 °C
Min Operating Temperature 5 °C 5 °C
Humidity Range Operating 8 - 95% 8 - 95%
Manufacturer Warranty Base warranty - 3 years - pick-up and return
Limited warranty - battery - 1 year
Extended warranty - 3 years - on-site
Limited warranty - 1 year - pick-up and return
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