In depth comparison and review of ASUS ExpertBook B5 (B5402CBA) and Lenovo ThinkPad X1 Extreme Gen 5 (21DE). 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 ExpertBook B5 (B5402CBA) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight design
robust security features
efficient performance
long battery life
fast charging support
limited graphics capability
average display quality
higher price point
noisy under load
Advantages and disadvantages of Lenovo ThinkPad X1 Extreme Gen 5 (21DE) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful intel processors
robust build quality
excellent 4k display
advanced security features
wide connectivity options
high price point
heavier than competitors
average battery life
loud under load
| DESIGN AND DIMENSIONS | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 32.34 cm x 22.31 cm x 1.8 cm | 35.95 cm x 25.38 cm x 1.79 cm |
| Weight | 1.25 kg | 1.88 kg |
| Case Material | - | Aluminium (bottom), carbon fibre (top) |
| Colour | Star black | Black paint |
| DISPLAY | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Screen Size (Type) | 14" | 16" - IPS |
|---|---|---|
| LCD Backlight Technology | - | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 2560 x 1600 (WQXGA) |
| V-Sync Rate at Max Res. | - | 165 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 400 cd/m² | 500 cd/m² |
| Colour Gamut | 100% sRGB | 100% sRGB |
| Features | Anti-glare, WideView, 85% screen-to-body ratio | Anti-glare, 178° viewing angle, Low Blue Light technology, X-Rite Pantone factory color calibration |
| PROCESSOR | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| CPU | Intel Core i5 (12th Gen) 1240P / 1.7 GHz | Intel Core i7 (12th Gen) 12700H / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.4 GHz | 4.7 GHz |
| Number of Cores | 12-core | 14-core |
| Cache | 12 MB | 24 MB |
| Features | - | Integrated memory controller |
| MEMORY | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| RAM | 8 GB (provided memory is soldered) | 16 GB (1 x 16 GB) |
|---|---|---|
| Max RAM Supported | 40 GB | 64 GB |
| RAM Type | DDR5 SDRAM | DDR5 SDRAM |
| Speed | - | 4800 MHz |
| Rated Speed | - | 4800 MHz |
| Form Factor | SO-DIMM 262-pin | SO-DIMM 262-pin |
| Slots Qty | 1 | 2 |
| Empty Slots | 1 | 1 |
| STORAGE | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe 4.0 - NVM Express (NVMe) | 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe), Performance |
|---|
| AUDIO & VIDEO | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Multi-GPU Configuration | - | 1 single GPU card / integrated GPU |
|---|---|---|
| Graphics Processor (GPU) | Intel UHD Graphics | NVIDIA GeForce RTX 3050 Ti / Intel Iris Xe Graphics |
| Max Monitors Supported | - | 4 external monitor(s) |
| Video Memory | - | 4 GB GDDR6 SDRAM |
| Camera | Yes - 720p | Yes - 1080p |
| Camera Features | Privacy shutter, IR camera, Windows Hello | Privacy shutter, IR camera, Windows Hello, fixed focus |
| Sound | Speakers, array microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3306 |
| Compliant Standards | Dolby Atmos | High Definition Audio, Dolby Audio Premium, Dolby Voice |
| COMMUNICATIONS | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Wireless | 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3 | NFC, Bluetooth 5.2, 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) |
| BATTERY | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Technology | 3-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 63 Wh | 90 Wh |
| AC ADAPTER | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 20 V, 3.25 A | 170 Watt |
| INPUT | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Type | Keyboard, 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, glass touchpad |
| CONNECTIONS & EXPANSIONS | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Slots | 2 x M.2 (PCI Express 4.0 x4) (1 free) | 2 x M.2 (PCI Express 4.0 x4) (1 free) |
|---|---|---|
| Interfaces | USB 2.0 LAN Headphone/microphone combo jack USB 3.2 Gen 2 2 x USB4 (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) HDMI 2.0a |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI Headphone/microphone combo jack |
| Memory Card Reader | Yes (microSD) | Yes (SD Express Card) |
| SOFTWARE | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Operating System (OS) | Windows 11 Pro | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence - German |
|---|---|---|
| Software Included | McAfee, MyASUS, Microsoft 365 (1 month trial) | Glance by Mirametrix |
| MISCELLANEOUS | ASUS ExpertBook B5 (B5402CBA) | Lenovo ThinkPad X1 Extreme Gen 5 (21DE) |
|---|
| Included Accessories | USB-C power adapter | Power adapter |
|---|---|---|
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | Kensington 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, Cortana support | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, USB FIDO (Fast Identity Online) device integration, Firmware Resiliency 3.0, certificate based BIOS authentication |
| Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TÜV Rheinland Low Blue Light Method 2 |
| ENERGY STAR Certified | - | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| TCO Certified | - | TCO Certified Notebooks 9 |
| 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 - 3 years - on-site |
| Model Number | KII5X | - |
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