ASUS ZenBook 14X OLED (UX5401ZAS) vs. Lenovo ThinkPad T14 Gen 3 (21AJ)

Laptop Comparison, Reviews and Tests
Lenovo ThinkPad T14 Gen 3 (21AJ)
Lenovo ThinkPad T14 Gen 3 (21AJ)

Our Rating: 85 %

Side by side comparison and review of ASUS ZenBook 14X OLED (UX5401ZAS) and Lenovo ThinkPad T14 Gen 3 (21AJ). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.

ASUS ZenBook 14X OLED (UX5401ZAS) Review

Advantages and disadvantages of ASUS ZenBook 14X OLED (UX5401ZAS) based on its technical characteristics, features, user experience, expert reviews and price level.

vibrant oled display

lightweight and portable

powerful intel processor

fast ssd storage

high build quality

average battery life

limited port selection

higher price point

no dedicated gpu

Lenovo ThinkPad T14 Gen 3 (21AJ) Review

Advantages and disadvantages of Lenovo ThinkPad T14 Gen 3 (21AJ) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

excellent keyboard feel

powerful processor options

good battery life

ample connectivity options

relatively heavy

average display brightness

costly base model

noisy under load

Laptop Comparison and Tests

Difference between ASUS ZenBook 14X OLED (UX5401ZAS) and Lenovo ThinkPad T14 Gen 3 (21AJ)
86 % - Design
92 % - Display
85 % - Performance
85 % - Connectivity
85 % - Battery
85 % - Design
85 % - Display
85 % - Performance
86 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

ASUS ZenBook 14X OLED (UX5401ZAS) vs. Lenovo ThinkPad T14 Gen 3 (21AJ) Comparison Chart
DESIGN AND DIMENSIONS ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Product Type Notebook Notebook - 180-degree hinge design
Dimensions (WxDxH) 31.12 cm x 22.11 cm x 1.59 cm 31.77 cm x 22.69 cm x 1.79 cm
Weight 1.4 kg 1.21 kg
Case Material - Carbon fibre (top), glass-fibre (top), polycarbonate (top), polyphenylene sulfide (bottom)
Colour Zero-G Titanium Thunder black
DISPLAY ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Screen Size (Type) 14" OLED 14" - IPS
Touchscreen Yes -
LCD Backlight Technology - LED backlight
Screen Resolution 2880 x 1800 (2.8K) 1920 x 1200 (WUXGA)
V-Sync Rate at Max Res. 90 Hz -
Widescreen Yes Yes
Image Aspect Ratio 16:10 16:10
Image Brightness 550 cd/m² 300 cd/m²
Colour Gamut 100% DCI-P3 45% NTSC
Colour Support 1.07 billion colours -
Features ASUS Splendid Video Intelligence Technology, ASUS EyeCare Technology, Pantone Validated, HDR 500 True Black, 0.2 ms response rate, 92% screen-to-body ratio Anti-glare, 170° viewing angle
PROCESSOR ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
CPU Intel Core i7 (12th Gen) 12700H / 2.3 GHz Intel Core i5 (12th Gen) 1245U / 1.6 GHz
Max Turbo Speed 4.7 GHz 4.4 GHz
Number of Cores 14-core 10-core
Cache 24 MB 12 MB
Features Intel Smart Cache Integrated memory controller
MEMORY ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
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 - 3200 MHz
Rated Speed - 3200 MHz
Form Factor - SO-DIMM 260-pin
Slots Qty - 1
Empty Slots - 1
STORAGE ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Main Storage Size (HDD/SSD) 1 TB SSD M.2 PCIe 4.0 - NVM Express (NVMe) 256 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption - SK Hynix
AUDIO & VIDEO ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Graphics Processor (GPU) Intel Iris Xe Graphics Intel Iris Xe Graphics
Max Monitors Supported - 3 external monitor(s)
Video System Features Functions as Intel UHD graphics (for single-channel memory) Functions as Intel UHD graphics (for single-channel memory)
Camera Yes - 720p Yes - 720p
Camera Features Privacy shutter Privacy shutter, fixed focus
Sound Harman/kardon stereo speakers, array microphone Stereo speakers, dual array microphone
Codec - Realtek ALC3287
Compliant Standards Dolby Atmos High Definition Audio, Dolby Audio, Dolby Voice
Audio Features AI noise cancelling -
COMMUNICATIONS ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Wireless Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller - Intel Wi-Fi 6E AX 211
Network Interface - Gigabit Ethernet
Features Dual stream (2x2) Wake-on-LAN (WOL)
WWAN
Generation - 4G
Technology - LTE
Controller - Quectel EM05-G - M.2 Card
BATTERY ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Technology 3-cell Lithium Ion 3-cell lithium polymer
Battery Capacity (Size) 63 Wh 39.3 Wh
AC ADAPTER ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 100 Watt, 20 V, 5 A 65 Watt, 5 / 9 / 15 / 20 V
INPUT ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Type Keyboard, NumberPad 2.0 Keyboard, TrackPoint, UltraNav
Keyboard Backlight Yes Yes
Features Chiclet keyboard, 1.4mm travel distance, ASUS ErgoSense Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls
CONNECTIONS & EXPANSIONS ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Slots - 1 x Nano-SIM card (1 free)
Interfaces USB 3.2 Gen 2
2 x Thunderbolt 4 (supports DisplayPort) (Power Delivery)
HDMI
Headphone/microphone combo jack
USB 3.2 Gen 1 (Always On)
USB 3.2 Gen 1
2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
HDMI
LAN
Headphone/microphone combo jack
Memory Card Reader Yes (microSD) -
SOFTWARE ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Operating System (OS) Windows 11 Home Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence
MISCELLANEOUS ASUS ZenBook 14X OLED (UX5401ZAS) Lenovo ThinkPad T14 Gen 3 (21AJ)
Included Accessories USB-C power adapter USB-C power adapter
Security Trusted Platform Module (TPM 2.0) and firmware (TPM), fingerprint reader Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader
Security Slot Type - Kensington nano security slot
Theft/Intrusion Protection - Security lock slot (cable lock sold separately)
Features ASUS IceCool design, ErgoLift Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0, certificate based BIOS authentication
Compliant Standards TUV Rheinland Flicker Free Certification, TUV Rheinland Low Blue Light (Hardware Solution) RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified
ENERGY STAR Certified Yes Yes
EPEAT Compliant - EPEAT Gold
Max Operating Temperature - 35 °C
Min Operating Temperature - 5 °C
Humidity Range Operating - 8 - 95%
Model Number KN110W -
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