Side by side comparison and review of Lenovo ThinkPad Z13 Gen 1 (21D3) and ASUS Zenbook 15 OLED (UM3504DA). 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 Z13 Gen 1 (21D3) based on its technical characteristics, features, user experience, expert reviews and price level.
excellent build quality
powerful amd processor
bright oled display
eco-friendly materials
solid security features
higher price point
limited port selection
no dedicated gpu
average battery life
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 Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 29.44 cm x 19.96 cm x 1.399 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 | 1.26 kg | 1.4 kg |
| Case Material | Aluminium (top), aluminium (bottom) | Aluminum |
| Colour | Black (bottom), arctic grey (top) | Ponder blue |
| DISPLAY | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Screen Size (Type) | 13.3" OLED | 15.6" OLED |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | - |
| Screen Resolution | 2880 x 1800 (2.8K) | 2880 x 1620 (2.8K) |
| V-Sync Rate at Max Res. | - | 120 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | 16:9 |
| Image Brightness | 500 cd/m² | 600 cd/m² |
| Colour Gamut | 100% DCI-P3 | 100% DCI-P3 |
| Colour Support | - | 1.07 billion colours |
| Features | Anti-reflective, One Glass Solution, anti-smudge, on-cell touch technology, Low Blue Light technology, Dolby Vision, 91.6% screen-to-body ratio | NanoEdge display, Pantone Validated, 86% screen-to-body ratio, 0.2 ms response rate, HDR 600 True Black, VESA DisplayHDR |
| PROCESSOR | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| CPU | AMD Ryzen 7 Pro 6850U / 2.7 GHz | AMD Ryzen 7 7735U / 2.7 GHz |
|---|---|---|
| Max Turbo Speed | 4.7 GHz | 4.75 GHz |
| Number of Cores | 8-core | 8-core |
| Cache | L3 - 16 MB | L3 - 16 MB |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| RAM | 32 GB (provided memory is soldered) | 16 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR5 SDRAM | LPDDR5 SDRAM |
| Speed | 6400 MHz | - |
| Rated Speed | 6400 MHz | - |
| STORAGE | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption - Union Memory | 512 GB SSD M.2 PCIe 4.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Graphics Processor (GPU) | AMD Radeon 680M | AMD Radeon 680M |
|---|---|---|
| Max Monitors Supported | 2 external monitor(s) | - |
| Camera | Yes - 1080p | Yes - Full HD |
| Camera Features | Windows Hello, fixed focus, e-camera shutter, Discrete IR | IR camera, Windows Hello, ASUS AiSense Camera |
| Sound | Stereo speakers, dual array microphone | Harman/kardon stereo speakers, array microphone |
| Codec | Realtek ALC3306 | - |
| Compliant Standards | High Definition Audio, Dolby Atmos | Dolby Atmos |
| Audio Features | Input: Dolby Voice, 360° far-field | Output: Smart Amplification technology, Asus Audio Booster; Input: AI noise cancelling |
| COMMUNICATIONS | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Wireless | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3 |
|---|---|---|
| Wireless Controller | Qualcomm NFA725A | - |
| Network Interface | Gigabit Ethernet | - |
| Features | - | Single stream (1x1) |
| BATTERY | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Technology | 3-cell lithium polymer | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 51.5 Wh | 67 Wh |
| AC ADAPTER | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt, 20 V, 3.25 A |
| INPUT | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, edge-to-edge backlit keyboard, Fn keys with Unified Communications controls, glass touchpad, Haptic ForcePad | Spill-resistant, chiclet keyboard, 1.4mm travel distance, ASUS ErgoSense |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Interfaces | 2 x USB4 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack LAN (on supplied adapter) |
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 Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence | Windows 11 Home |
|---|---|---|
| Software Included | - | MyASUS, ScreenXpert, GlideX |
| MISCELLANEOUS | Lenovo ThinkPad Z13 Gen 1 (21D3) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Included Accessories | USB-C power adapter, Lenovo USB-C to Ethernet Adapter | USB-C power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip |
| Features | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS, NVMe password, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication | MIL-STD-810H tested, Cortana support, ASUS Antimicrobial Guard Plus |
| Compliant Standards | RoHS, TUV Rheinland Low Blue Light Certification, Energy-Related Products (ErP) Lot 3, TCO Certified 9.0 | RoHS, REACH, ISO 22196, TUV Rheinland Low Blue Light Certification, TUV Rheinland Flicker Free Certification, SGS Eye Care Display Certification, ISO 21702 |
| Carbon Footprint | 216 kg carbon emissions (EU) | - |
| Max Operating Temperature | 35 °C | 49 °C |
| Min Operating Temperature | 5 °C | -37 °C |
| Humidity Range Operating | 8 - 95% | 95% RH |
| Model Number | - | NX015W |
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