Detailed comparison and review of Lenovo ThinkPad E15 Gen 2 (20T9) and ASUS Zenbook 15 OLED (UM3504DA). 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.
Advantages and disadvantages of Lenovo ThinkPad E15 Gen 2 (20T9) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
good security features
decent battery life
solid performance
average display quality
heavier than competitors
no thunderbolt support
limited color accuracy
Advantages and disadvantages of ASUS Zenbook 15 OLED (UM3504DA) based on its technical characteristics, features, user experience, expert reviews and price level.
vibrant oled display
lightweight and portable
powerful ryzen processor
ample storage options
good battery life
limited port selection
no dedicated gpu
higher price segment
average speaker quality
DESIGN AND DIMENSIONS | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Product Type | Notebook | Notebook - 180-degree hinge design |
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Dimensions (WxDxH) | 36.5 cm x 24 cm x 1.89 cm | 35.38 cm x 22.66 cm x 1.58 cm |
Dimensions (WxDxH) / Weight Details | - | 45.5 cm x 29 cm x 7.3 cm / 3.67 kg |
Weight | 1.7 kg | 1.4 kg |
Case Material | Aluminum, polycarbonate ABS | Aluminum |
Colour | Black | Ponder blue |
DISPLAY | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Screen Size (Type) | 15.6" - IPS | 15.6" OLED |
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LCD Backlight Technology | LED backlight | - |
Screen Resolution | 1920 x 1080 (Full HD) | 2880 x 1620 (2.8K) |
V-Sync Rate at Max Res. | - | 120 Hz |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | 250 cd/m² | 600 cd/m² |
Colour Gamut | - | 100% DCI-P3 |
Colour Support | - | 1.07 billion colours |
Features | Anti-glare, 170° viewing angle | NanoEdge display, Pantone Validated, 86% screen-to-body ratio, 0.2 ms response rate, HDR 600 True Black, VESA DisplayHDR |
PROCESSOR | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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CPU | AMD Ryzen 5 4500U / 2.3 GHz | AMD Ryzen 7 7735U / 2.7 GHz |
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Max Turbo Speed | 4 GHz | 4.75 GHz |
Number of Cores | 6-core | 8-core |
Cache | L3 - 8 MB | L3 - 16 MB |
64-bit Computing | Yes | - |
Features | Integrated memory controller | - |
MEMORY | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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RAM | 8 GB (provided memory is soldered) | 16 GB (provided memory is soldered) |
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Max RAM Supported | 24 GB | - |
RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
Speed | 3200 MHz | - |
Rated Speed | 3200 MHz | - |
Form Factor | SO-DIMM 260-pin | - |
Slots Qty | 1 | - |
Empty Slots | 1 | - |
STORAGE | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 3.0 x4 - Samsung | 512 GB SSD M.2 PCIe 4.0 - NVM Express (NVMe) |
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AUDIO & VIDEO | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Graphics Processor (GPU) | AMD Radeon Graphics | AMD Radeon 680M |
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Camera | Yes - 720p | Yes - Full HD |
Camera Features | Fixed focus, ThinkShutter camera privacy | IR camera, Windows Hello, ASUS AiSense Camera |
Sound | Stereo speakers, dual array microphone | Harman/kardon stereo speakers, array microphone |
Codec | Realtek ALC3287 | - |
Compliant Standards | High Definition Audio | Dolby Atmos |
Audio Features | Harman/kardon stereo speakers | Output: Smart Amplification technology, Asus Audio Booster; Input: AI noise cancelling |
COMMUNICATIONS | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 | 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3 |
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Wireless Controller | Intel Wi-Fi 6 AX 200 - M.2 Card | - |
Network Interface | Gigabit Ethernet | - |
Ethernet Controller | Realtek R8111GUS | - |
Features | - | Single stream (1x1) |
BATTERY | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Technology | 3-cell Lithium Ion | 4-cell Lithium Ion |
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Battery Capacity (Size) | 45 Wh | 67 Wh |
Battery Life | Up to 12.7 hours | - |
AC ADAPTER | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
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Output | 65 Watt | 65 Watt, 20 V, 3.25 A |
INPUT | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
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Numeric Keypad | Yes | Yes |
Keyboard Backlight | - | Yes |
Features | Spill-resistant, multi-touch touchpad, buttonless touchpad, Fn keys with Unified Communications controls | Spill-resistant, chiclet keyboard, 1.4mm travel distance, ASUS ErgoSense |
CONNECTIONS & EXPANSIONS | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Slots | 2 x M.2 Card (1 free) | - |
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Interfaces | USB 3.2 Gen 1 (Always On) USB 2.0 USB-C 3.2 Gen 1 (supports DisplayPort 1.2 Alt Mode) (Power Delivery) HDMI LAN Headphone/microphone combo jack |
HDMI 2.1 Headphone/microphone combo jack USB-C 4.0 Gen 3/DisplayPort (Power Delivery) USB-C 3.2 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) USB 3.2 Gen 1 |
SOFTWARE | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Operating System (OS) | Windows 10 Home 64-bit Edition | Windows 11 Home |
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Software Included | - | MyASUS, ScreenXpert, GlideX |
MISCELLANEOUS | Lenovo ThinkPad E15 Gen 2 (20T9) | ASUS Zenbook 15 OLED (UM3504DA) |
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Included Accessories | USB-C power adapter | USB-C power adapter |
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Security | Trusted Platform Module (TPM 2.0) Security Chip | 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, hard drive password, power-on password, RapidCharge, MIL-STD-810H tested | MIL-STD-810H tested, Cortana support, ASUS Antimicrobial Guard Plus |
Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, REACH, ISO 22196, TUV Rheinland Low Blue Light Certification, TUV Rheinland Flicker Free Certification, SGS Eye Care Display Certification, ISO 21702 |
SAR Value | 0.438 W/kg (body), 0.438 W/kg (limb) | - |
ENERGY STAR Certified | Yes | - |
EPEAT Compliant | EPEAT Gold | - |
TCO Certified | TCO Certified Notebooks 8 | - |
Max Operating Temperature | - | 49 °C |
Min Operating Temperature | - | -37 °C |
Humidity Range Operating | - | 95% RH |
Model Number | - | NX015W |