Side by side comparison and review of ASUS ExpertBook B5 (B5402FBAV) and Lenovo ThinkPad X13 Gen 4 (21EX). 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 ASUS ExpertBook B5 (B5402FBAV) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight design
robust security features
fast charging support
high-resolution display
efficient performance
average battery life
limited graphics power
higher price point
noisy under load
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 ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 32.34 cm x 22.31 cm x 1.8 cm | 30.17 cm x 21.48 cm x 1.595 cm |
| Weight | 1.38 kg | 1.09 kg |
| Case Material | - | Aluminium (bottom), carbon fibre hybrid (top) |
| Colour | Star black | Deep black |
| DISPLAY | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Screen Size (Type) | 14" | 13.3" - IPS |
|---|---|---|
| Touchscreen | Yes | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1200 (WUXGA) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 400 cd/m² | 300 cd/m² |
| Colour Gamut | 100% sRGB | 100% sRGB |
| Features | Anti-glare, WideView, one glass metal mesh (OGM), 85% screen-to-body ratio | Anti-glare |
| PROCESSOR | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| CPU | Intel Core i5 (12th Gen) 1240P / 1.7 GHz | Intel Core i5 (13th Gen) 1335U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.4 GHz | 4.6 GHz |
| Number of Cores | 12-core | 10-core |
| Cache | 12 MB | 12 MB |
| Platform Technology | - | Intel Evo |
| Features | Intel Smart Cache | Integrated memory controller |
| MEMORY | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| RAM | 16 GB | 16 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 40 GB | - |
| RAM Type | DDR5 SDRAM | LPDDR5 SDRAM |
| Speed | - | 4800 MHz |
| Rated Speed | - | 6400 MHz |
| Form Factor | SO-DIMM 262-pin | - |
| Slots Qty | 1 | - |
| STORAGE | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe 4.0 | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | - | 3 external monitor(s) |
| Video System Features | Functions as Intel UHD graphics (for single-channel memory) | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - 720p | Yes - 1080p |
| Camera Features | Privacy shutter, IR camera, Windows Hello | Privacy shutter, fixed focus |
| Sound | Speakers, array microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3287 |
| Compliant Standards | Dolby Atmos | High Definition Audio, Dolby Audio |
| Audio Features | - | Input: Dolby Voice, 360° far-field |
| COMMUNICATIONS | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Wireless | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | - | Intel Wi-Fi 6E AX 211 |
| Network Interface | Gigabit Ethernet | - |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G upgradable |
|---|
| BATTERY | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Technology | 3-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 63 Wh | 54.7 Wh |
| AC ADAPTER | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 20 V, 3.25 A | 65 Watt |
| INPUT | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Type | Keyboard, stylus, NumberPad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Chiclet keyboard, 1.5mm travel distance | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Slots | 2 x M.2 (PCI Express 4.0 x4) (1 free) | - |
|---|---|---|
| Interfaces | USB 3.2 Gen 2 2 x USB-C (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) HDMI USB 2.0 LAN Headphone/microphone combo jack |
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 |
| Memory Card Reader | Yes (microSD) | - |
| SOFTWARE | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Operating System (OS) | Windows 11 Pro | Windows 11 Pro - English |
|---|---|---|
| Software Included | - | Glance by Mirametrix, Intel Connectivity Performance Suite |
| MISCELLANEOUS | ASUS ExpertBook B5 (B5402FBAV) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Included Accessories | USB-C power adapter, MPP 2.0 garaged stylus | USB-C slim power adapter |
|---|---|---|
| Security | Trusted Platform Module (TPM 2.0) 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 | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | MIL-STD-810H tested | 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 | Limited warranty - 1 year - pick-up and return | 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 | HYI5X | - |
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