In depth comparison and review of ASUS ZenBook S UX391FA (EA062T) and Lenovo ThinkPad X13 Gen 4 (21EX). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of ASUS ZenBook S UX391FA (EA062T) based on its technical characteristics, features, user experience, expert reviews and price level.
ultra-slim design
vibrant full-HD display
solid state drive performance
lightweight portability
efficient power consumption
limited port selection
no dedicated GPU
average audio quality
higher price point
Advantages and disadvantages of Lenovo ThinkPad X13 Gen 4 (21EX) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
impressive security features
good battery life
portable design
average display brightness
limited graphics performance
noisy under load
higher price point
| DESIGN AND DIMENSIONS | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 31.1 cm x 21.3 cm x 1.29 cm | 30.17 cm x 21.48 cm x 1.595 cm |
| Weight | 1.05 kg | 1.09 kg |
| Case Material | Aluminum, magnesium-aluminum alloy | Aluminium (bottom), carbon fibre hybrid (top) |
| Colour | Deep dive blue | Deep black |
| DISPLAY | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Screen Size (Type) | 13.3" | 13.3" - IPS |
|---|---|---|
| Touchscreen | Yes | - |
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 3840 x 2160 (Ultra HD 4K) | 1920 x 1200 (WUXGA) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 350 cd/m² | 300 cd/m² |
| Colour Gamut | 100% sRGB | 100% sRGB |
| Features | ASUS Splendid Video Intelligence Technology, glare, ASUS EyeCare Technology, 178° horizontal and vertical viewing angle | Anti-glare |
| PROCESSOR | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| CPU | Intel Core i7 (8th Gen) 8565U / 1.8 GHz | Intel Core i5 (13th Gen) 1335U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.6 GHz | 4.6 GHz |
| Number of Cores | Quad-Core | 10-core |
| Cache | 8 MB | 12 MB |
| 64-bit Computing | Yes | - |
| Platform Technology | - | Intel Evo |
| Features | Intel Turbo Boost Technology 2.0 | Integrated memory controller |
| MEMORY | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| RAM | 16 GB (provided memory is soldered) | 16 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR3 SDRAM | LPDDR5 SDRAM |
| Speed | 2133 MHz | 4800 MHz |
| Rated Speed | 2133 MHz | 6400 MHz |
| STORAGE | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 PCIe - NVM Express (NVMe) | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | - | 3 external monitor(s) |
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - 720p | Yes - 1080p |
| Camera Features | - | Privacy shutter, fixed focus |
| Sound | Harman/kardon stereo speakers, array microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3287 |
| Compliant Standards | - | High Definition Audio, Dolby Audio |
| Audio Features | ASUS SonicMaster | Input: Dolby Voice, 360° far-field |
| COMMUNICATIONS | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | - | Intel Wi-Fi 6E AX 211 |
| Features | - | Dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G upgradable |
|---|
| BATTERY | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Technology | 4-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 50 Wh | 54.7 Wh |
| AC ADAPTER | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19 V, 3.42 A | 65 Watt |
| INPUT | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Type | Keyboard, touchpad, stylus | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Chiclet keyboard, Windows Hello | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Interfaces | Headphone/microphone combo jack USB-C 3.2 Gen 1 (Power Delivery/data/video) 2 x USB-C 3.1 Gen 2 (supports Thunderbolt 3) (Power Delivery/data/video) HDMI (on expansion base) USB-C (on expansion base) USB 3.0 (on expansion base) |
USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 2 x USB4 (supports Thunderbolt 4, DisplayPort 2.0 Alt Mode) (Power Delivery 3.0) HDMI 2.1 (4K support) Headphone/microphone combo jack |
|---|
| SOFTWARE | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 11 Pro - English |
|---|---|---|
| Software Included | - | Glance by Mirametrix, Intel Connectivity Performance Suite |
| MISCELLANEOUS | ASUS ZenBook S UX391FA (EA062T) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Included Accessories | Stylus, sleeve, mini dock, USB-C power adapter | USB-C slim power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM) Security Chip, fingerprint reader | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader |
| Security Slot Type | - | Kensington nano security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | MIL-STD-810G tested, ErgoLift | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, Firmware Resiliency 3.0, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication |
| Compliant Standards | - | RoHS, Energy-using Products (EuP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | - | Base warranty - 3 years - pick-up and return Base warranty - battery - 1 year Extended warranty - 1 year - on-site - response time: next business day |
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