Side by side comparison and review of Lenovo ThinkPad X13 Gen 3 (21CM) 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 X13 Gen 3 (21CM) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard experience
impressive security features
good battery life
compact and portable
average display brightness
limited graphics performance
noisy under load
higher price point
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 X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Product Type | Notebook - 180-degree hinge design | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 30.58 cm x 21.756 cm x 1.81 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 | 1.31 kg | 1.4 kg |
| Case Material | Polyphenylene sulfide (top), aluminium (bottom) | Aluminum |
| Colour | Thunder black | Ponder blue |
| DISPLAY | Lenovo ThinkPad X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Screen Size (Type) | 13.3" - IPS | 15.6" OLED |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1200 (WUXGA) | 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 | 300 cd/m² | 600 cd/m² |
| Colour Gamut | 72% NTSC | 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 X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| CPU | AMD Ryzen 5 Pro 6650U / 2.9 GHz | AMD Ryzen 7 7735U / 2.7 GHz |
|---|---|---|
| Max Turbo Speed | 4.5 GHz | 4.75 GHz |
| Number of Cores | 6-core | 8-core |
| Cache | L3 - 16 MB | L3 - 16 MB |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkPad X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| RAM | 16 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 X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance | 512 GB SSD M.2 PCIe 4.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Graphics Processor (GPU) | AMD Radeon 660M | AMD Radeon 680M |
|---|---|---|
| Max Monitors Supported | 3 external monitor(s) | - |
| Camera | Yes - 1080p | Yes - Full HD |
| Camera Features | Privacy shutter, IR camera, fixed focus | 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 Audio, Dolby Voice | Dolby Atmos |
| Audio Features | - | Output: Smart Amplification technology, Asus Audio Booster; Input: AI noise cancelling |
| COMMUNICATIONS | Lenovo ThinkPad X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Wireless | Bluetooth 5.2, 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 | - |
| Features | Dual stream (2x2) | Single stream (1x1) |
| WWAN |
|---|
| Generation | 4G upgradable | - |
|---|
| BATTERY | Lenovo ThinkPad X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Technology | Lithium polymer | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 54.7 Wh | 67 Wh |
| AC ADAPTER | Lenovo ThinkPad X13 Gen 3 (21CM) | 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 X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| 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 | Spill-resistant, chiclet keyboard, 1.4mm travel distance, ASUS ErgoSense |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Slots | 1 x Nano-SIM card (1 free) | - |
|---|---|---|
| Interfaces | USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 USB4 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) USB-C 3.2 Gen 2 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI 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 X13 Gen 3 (21CM) | 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 - English | Windows 11 Home |
|---|---|---|
| Software Included | Glance by Mirametrix | MyASUS, ScreenXpert, GlideX |
| MISCELLANEOUS | Lenovo ThinkPad X13 Gen 3 (21CM) | ASUS Zenbook 15 OLED (UM3504DA) |
|---|
| Included Accessories | USB-C power adapter | USB-C power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, fingerprint reader, smart card reader | Trusted Platform Module (TPM 2.0) Security Chip |
| Security Slot Type | Kensington nano security slot | - |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
| Features | Administrator password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration | MIL-STD-810H tested, Cortana support, ASUS Antimicrobial Guard Plus |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified | RoHS, REACH, ISO 22196, TUV Rheinland Low Blue Light Certification, TUV Rheinland Flicker Free Certification, SGS Eye Care Display Certification, ISO 21702 |
| ENERGY STAR Certified | Yes | - |
| EPEAT Compliant | EPEAT Gold | - |
| Max Operating Temperature | 35 °C | 49 °C |
| Min Operating Temperature | 5 °C | -37 °C |
| Humidity Range Operating | 8 - 95% | 95% RH |
| Manufacturer Warranty | Base warranty - 3 years - pick-up and return Extended warranty - 1 year - on-site Limited warranty - battery - 1 year |
- |
| Model Number | - | NX015W |
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