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.
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
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.
| 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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