In depth comparison and review of Lenovo ThinkPad X13 Gen 4 (21EX) and ASUS VivoBook 16X (K3605ZF). 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 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
Advantages and disadvantages of ASUS VivoBook 16X (K3605ZF) based on its technical characteristics, features, user experience, expert reviews and price level.
high-resolution display
lightweight design
fast SSD storage
powerful processor performance
good thermal management
average battery life
limited port selection
higher price point
noisy under load
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 30.17 cm x 21.48 cm x 1.595 cm | 35.86 cm x 24.91 cm x 1.89 cm |
| Weight | 1.09 kg | 1.8 kg |
| Case Material | Aluminium (bottom), carbon fibre hybrid (top) | Aluminum, plastic |
| Colour | Deep black | Cool silver |
| DISPLAY | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| Screen Size (Type) | 13.3" - IPS | 16" |
|---|---|---|
| Screen Resolution | 1920 x 1200 (WUXGA) | 1920 x 1200 (WUXGA) |
| V-Sync Rate at Max Res. | - | 120 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:10 | 16:10 |
| Image Brightness | 300 cd/m² | 300 cd/m² |
| Colour Gamut | 100% sRGB | 100% sRGB |
| Features | Anti-glare | Anti-glare, 86% screen-to-body ratio, IPS-level |
| PROCESSOR | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| CPU | Intel Core i5 (13th Gen) 1335U / 1.3 GHz | Intel Core i5 (12th Gen) 12450H |
|---|---|---|
| Max Turbo Speed | 4.6 GHz | 4.4 GHz |
| Number of Cores | 10-core | 8-core |
| Cache | 12 MB | 12 MB |
| Platform Technology | Intel Evo | - |
| Features | Integrated memory controller | Intel Smart Cache |
| MEMORY | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| RAM | 16 GB (provided memory is soldered) | 16 GB (1 x 8 GB + 8 GB (soldered)) |
|---|---|---|
| Max RAM Supported | - | 16 GB |
| RAM Type | LPDDR5 SDRAM | DDR4 SDRAM |
| Speed | 4800 MHz | - |
| Rated Speed | 6400 MHz | - |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 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 X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | NVIDIA GeForce RTX 2050 / Intel UHD Graphics |
| Max Monitors Supported | 3 external monitor(s) | - |
| Video Memory | - | 4 GB GDDR6 VRAM |
| Video System Features | Functions as Intel UHD graphics (for single-channel memory) | - |
| Camera | Yes - 1080p | Yes - HD |
| Camera Features | Privacy shutter, fixed focus | Privacy shutter |
| Sound | Stereo speakers, dual array microphone | Dual speakers, dual array microphone |
| Codec | Realtek ALC3287 | - |
| Compliant Standards | High Definition Audio, Dolby Audio | - |
| Audio Features | Input: Dolby Voice, 360° far-field | Output: ASUS SonicMaster |
| COMMUNICATIONS | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| 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 | Intel Wi-Fi 6E AX 211 | - |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| WWAN |
|---|
| Generation | 4G upgradable | - |
|---|
| BATTERY | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| Technology | Lithium polymer | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 54.7 Wh | 50 Wh |
| AC ADAPTER | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 120 Watt, 20 V, 6 A |
| INPUT | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| 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 | Chiclet keyboard, 1.4mm travel distance, ASUS ErgoSense |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| Interfaces | 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 |
HDMI 2.1 Headphone/microphone combo jack 2 x USB 3.2 Gen 1 USB-C 3.2 Gen 1 (Power Delivery) |
|---|---|---|
| Memory Card Reader | - | Yes (SD Card) |
| SOFTWARE | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| Operating System (OS) | Windows 11 Pro - English | Windows 11 Home |
|---|---|---|
| Software Included | Glance by Mirametrix, Intel Connectivity Performance Suite | McAfee LiveSafe (30 days trial), Microsoft 365 (1 month trial) |
| MISCELLANEOUS | Lenovo ThinkPad X13 Gen 4 (21EX) | ASUS VivoBook 16X (K3605ZF) |
|---|
| Included Accessories | USB-C slim power adapter | Power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader | Firmware Trusted Platform Module (TPM) Security Chip |
| Security Slot Type | Kensington nano security slot | - |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
| Features | 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 | ASUS IceCool design, MIL-STD-810H tested, ASUS Antimicrobial Guard |
| Compliant Standards | RoHS, Energy-using Products (EuP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 | RoHS, REACH, TUV Rheinland Low Blue Light Certification, TUV Rheinland Flicker Free Certification |
| 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 |
- |
| Model Number | - | N1009W |
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