Lenovo ThinkPad E15 Gen 4 (21ED) vs. ASUS Zenbook Pro 14 OLED (UX6404VI)

Laptop Comparison, Reviews and Tests

Side by side comparison and review of Lenovo ThinkPad E15 Gen 4 (21ED) and ASUS Zenbook Pro 14 OLED (UX6404VI). 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.

Lenovo ThinkPad E15 Gen 4 (21ED) Review

Advantages and disadvantages of Lenovo ThinkPad E15 Gen 4 (21ED) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

efficient performance

comfortable keyboard

good security features

affordable price

average display quality

limited graphics power

moderate battery life

noisy under load

ASUS Zenbook Pro 14 OLED (UX6404VI) Review

Advantages and disadvantages of ASUS Zenbook Pro 14 OLED (UX6404VI) based on its technical characteristics, features, user experience, expert reviews and price level.

stunning oled display

powerful processor performance

sleek, lightweight design

high-speed connectivity options

innovative cooling system

average battery life

limited port selection

higher price point

no dedicated numeric keypad.

Laptop Comparison and Tests

Difference between Lenovo ThinkPad E15 Gen 4 (21ED) and ASUS Zenbook Pro 14 OLED (UX6404VI)
85 % - Design
72 % - Display
72 % - Performance
85 % - Connectivity
75 % - Battery
82 % - Design
88 % - Display
85 % - Performance
85 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

Lenovo ThinkPad E15 Gen 4 (21ED) vs. ASUS Zenbook Pro 14 OLED (UX6404VI) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Product Type Notebook Notebook
Dimensions (WxDxH) 36.5 cm x 24 cm x 1.89 cm 32.18 cm x 22.33 cm x 1.79 cm
Weight 1.78 kg 1.65 kg
Case Material Aluminium (top), polycarbonate ABS (bottom) Aluminum
Colour Black Tech black
DISPLAY Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Screen Size (Type) 15.6" - IPS 14.5" OLED
Touchscreen - Yes
LCD Backlight Technology LED backlight -
Screen Resolution 1920 x 1080 (Full HD) 2880 x 1800 (2.8K)
V-Sync Rate at Max Res. - 120 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:10
Image Brightness 300 cd/m² 550 cd/m²
Colour Gamut - 100% DCI-P3
Colour Support - 1.07 billion colours
Features Anti-glare, 170° viewing angle Glossy, HDR (high dynamic range), Pantone Validated, HDR 500 True Black, 0.2 ms response rate
PROCESSOR Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
CPU AMD Ryzen 5 5625U / 2.3 GHz Intel Core i9 (13th Gen) 13900H
Max Turbo Speed 4.3 GHz 5.4 GHz
Number of Cores 6-core 14-core
Cache L3 - 16 MB 24 MB
Features Integrated memory controller Intel Smart Cache
MEMORY Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
RAM 8 GB (provided memory is soldered) 16 GB (provided memory is soldered)
Max RAM Supported 40 GB 48 GB
RAM Type DDR4 SDRAM DDR5 SDRAM
Speed 3200 MHz -
Rated Speed 3200 MHz -
Form Factor SO-DIMM 260-pin SO-DIMM 262-pin
Slots Qty 1 1
Empty Slots 1 1
STORAGE Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) 1 TB SSD M.2 PCIe 4.0 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Multi-GPU Configuration - 1 single GPU card / integrated GPU
Graphics Processor (GPU) AMD Radeon Graphics NVIDIA GeForce RTX 4070 / Intel Iris Xe Graphics
Max Monitors Supported 2 external monitor(s) -
Video Memory - 8 GB GDDR6 SDRAM
Camera Yes - 1080p Yes - Full HD
Camera Features Privacy shutter, IR camera, Windows Hello, fixed focus IR camera, Windows Hello
Sound Stereo speakers, dual array microphone Harman/kardon stereo speakers, 3-microphone array
Codec Realtek ALC3287 -
Compliant Standards High Definition Audio, Dolby Audio Dolby Atmos
Audio Features Harman-branded Output: Smart Amplification technology, Asus Audio Booster; Input: AI noise cancelling
COMMUNICATIONS Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Wireless 802.11a/b/g/n/ac/ax, Bluetooth 5.2 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3
Wireless Controller M.2 Card -
Network Interface Gigabit Ethernet -
Ethernet Controller Realtek RTL8111H-CG -
Features Wake-on-LAN (WOL), dual stream (2x2) Dual stream (2x2)
BATTERY Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Technology Lithium polymer 4-cell Lithium Ion
Battery Capacity (Size) 57 Wh 76 Wh
Battery Life Up to 16.5 hours -
AC ADAPTER Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 200 Watt, 20 V, 10 A
INPUT Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Type Keyboard, TrackPoint, UltraNav Keyboard, touchpad
Numeric Keypad Yes -
Keyboard Backlight Yes Yes
Features Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls 1.4mm travel distance, ASUS ErgoSense
CONNECTIONS & EXPANSIONS Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Slots 2 x M.2 Card (1 free) -
Interfaces USB 2.0
USB 3.2 Gen 1 (Always On)
USB-C 3.2 Gen 1 (supports DisplayPort 1.2 Alt Mode) (Power Delivery 3.0)
HDMI
LAN
Headphone/microphone combo jack
Headphone/microphone combo jack
USB 3.2 Gen 2
USB-C 3.2 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery)
HDMI 2.1
Thunderbolt 4 (supports DisplayPort) (Power Delivery)
Memory Card Reader - Yes (SD Card)
SOFTWARE Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Operating System (OS) Windows 11 Pro - English Windows 11 Home
Software Included - McAfee LiveSafe (30 days trial), Microsoft 365 (1 month trial)
MISCELLANEOUS Lenovo ThinkPad E15 Gen 4 (21ED) ASUS Zenbook Pro 14 OLED (UX6404VI)
Included Accessories USB-C power adapter Power adapter
Security Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Trusted Platform Module (TPM 2.0) Security Chip
Security Slot Type Kensington security slot -
Theft/Intrusion Protection Security lock slot (cable lock sold separately) -
Features Administrator password, power-on password, MIL-STD-810H tested, self-healing BIOS, NVMe password MIL-STD-810H tested, ASUS IceCool Pro
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TUV Rheinland Low Blue Light (Software Solution) RoHS, REACH, TUV Rheinland, SGS Eye Care Display Certification
ENERGY STAR Certified Yes -
EPEAT Compliant EPEAT Gold -
Max Operating Temperature 35 °C -
Min Operating Temperature 5 °C -
Humidity Range Operating 8 - 95% -
Manufacturer Warranty Base warranty - 1 year - pick-up and return
Extended warranty - 1 year - on-site
-
Model Number - P1056W
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