Side by side comparison and review of Lenovo ThinkPad E15 Gen 4 (21ED) and ASUS VivoBook 15 OLED (X1505ZA). 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 VivoBook 15 OLED (X1505ZA) based on its technical characteristics, features, user experience, expert reviews and price level.
vibrant oled display
lightweight design
competitive pricing
solid build quality
decent processor performance
average battery life
limited upgradeability
modest graphics card
no thunderbolt support
| DESIGN AND DIMENSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 36.5 cm x 24 cm x 1.89 cm | 35.68 cm x 22.76 cm x 1.99 cm |
| Weight | 1.78 kg | 1.7 kg |
| Case Material | Aluminium (top), polycarbonate ABS (bottom) | - |
| Colour | Black | Transparent silver |
| DISPLAY | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| Screen Size (Type) | 15.6" - IPS | 15.6" OLED |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 300 cd/m² | 400 cd/m² |
| Colour Gamut | - | 100% DCI-P3 |
| Colour Support | - | 1.07 billion colours |
| Features | Anti-glare, 170° viewing angle | Glossy, HDR (high dynamic range), 86% screen-to-body ratio, 0.2 ms response rate, HDR 600 True Black |
| PROCESSOR | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| CPU | AMD Ryzen 5 5625U / 2.3 GHz | Intel Core i5 (12th Gen) 1235U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.3 GHz | 4.4 GHz |
| Number of Cores | 6-core | 10-core |
| Cache | L3 - 16 MB | L3 - 12 MB |
| Features | Integrated memory controller | Intel Smart Cache |
| MEMORY | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| RAM | 8 GB (provided memory is soldered) | 16 GB (1 x 8 GB + 8 GB (soldered)) |
|---|---|---|
| Max RAM Supported | 40 GB | 16 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 3200 MHz | - |
| Rated Speed | 3200 MHz | - |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 1 | 1 |
| Empty Slots | 1 | 0 |
| STORAGE | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 512 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| Graphics Processor (GPU) | AMD Radeon Graphics | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | 2 external monitor(s) | - |
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - 1080p | Yes - 720p |
| Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus | Privacy shutter, ASUS 3D Noise Reduction (3DNR) Technology |
| Sound | Stereo speakers, dual array microphone | Dual speakers, array microphone |
| Codec | Realtek ALC3287 | - |
| Compliant Standards | High Definition Audio, Dolby Audio | - |
| Audio Features | Harman-branded | Input: AI noise cancelling |
| COMMUNICATIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | 802.11a/b/g/n/ac/ax, 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 VivoBook 15 OLED (X1505ZA) |
|---|
| Technology | Lithium polymer | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 57 Wh | 50 Wh |
| Battery Life | Up to 16.5 hours | - |
| AC ADAPTER | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt, 19 V, 3.42 A |
| INPUT | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls | Precision touchpad, chiclet keyboard, 1.4mm travel distance, ASUS ErgoSense |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| 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 2 x USB 3.2 Gen 1 USB-C 3.2 Gen 1 HDMI 1.4 USB 2.0 |
| SOFTWARE | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| Operating System (OS) | Windows 11 Pro - English | - |
|---|---|---|
| Software Included | - | MyASUS, ScreenXpert, Microsoft 365 (1 month trial), GlideX |
| MISCELLANEOUS | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS VivoBook 15 OLED (X1505ZA) |
|---|
| Included Accessories | USB-C power adapter | Power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM) 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, BIOS protection, IceBlades fan, ASUS Antimicrobial Guard |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TUV Rheinland Low Blue Light (Software Solution) | RoHS, REACH, Energy Star 8.0 |
| 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 | - | L1204W |
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