Side by side comparison and review of ASUS ExpertBook B5 (B5302CEA) and Lenovo ThinkPad E15 Gen 4 (21E6). 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 (B5302CEA) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight design
robust security features
fast charging support
excellent keyboard comfort
efficient performance
average display quality
limited graphics capability
higher price point
noisy under load
Advantages and disadvantages of Lenovo ThinkPad E15 Gen 4 (21E6) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
efficient performance
comfortable keyboard
good security features
reasonable price
average display quality
moderate battery life
limited graphics capability
no thunderbolt support
| DESIGN AND DIMENSIONS | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 30.9 cm x 21.06 cm x 1.69 cm | 36.5 cm x 24 cm x 1.89 cm |
| Weight | 1.1 kg | 1.7 kg |
| Case Material | Aluminum, magnesium alloy | Aluminium (top), polycarbonate ABS (bottom) |
| Colour | Star black | Black |
| DISPLAY | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Screen Size (Type) | 13.3" | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 300 cd/m² | 300 cd/m² |
| Colour Gamut | 100% sRGB | 45% NTSC |
| Features | Anti-glare, WideView, 78% screen-to-body ratio | Anti-glare, 170° viewing angle |
| PROCESSOR | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| CPU | Intel Core i5 (11th Gen) 1135G7 / 2.4 GHz | Intel Core i5 (12th Gen) 1235U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.2 GHz | 4.4 GHz |
| Number of Cores | Quad-Core | 10-core |
| Cache | 8 MB | 12 MB |
| Features | Hyper-Threading Technology, Intel Turbo Boost Technology 2.0, Intel Smart Cache, Intel Deep Learning Boost (DL Boost) | Integrated memory controller |
| MEMORY | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 40 GB | 40 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 3200 MHz | 3200 MHz |
| Rated Speed | - | 3200 MHz |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
| Slots Qty | 1 | 1 |
| Empty Slots | 1 | 1 |
| STORAGE | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe 3.0 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Graphics Processor (GPU) | Intel Iris Xe Graphics | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | - | 2 external monitor(s) |
| Camera | Yes - 720p | Yes - 1080p |
| Camera Features | Privacy shutter | Privacy shutter, IR camera, Windows Hello, fixed focus |
| Sound | Stereo speakers, array microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3287 |
| Compliant Standards | - | High Definition Audio, Dolby Audio |
| Audio Features | Smart Amp | Harman-branded |
| COMMUNICATIONS | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 |
|---|---|---|
| Wireless Controller | - | M.2 Card |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | - | Intel I219-V |
| Features | Dual stream (2x2) | Wake-on-LAN (WOL), dual stream (2x2) |
| BATTERY | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Technology | 4-cell Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 66 Wh | 57 Wh |
| Battery Life | - | Up to 15.6 hours |
| AC ADAPTER | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19 V, 3.42 A | 65 Watt |
| INPUT | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Type | Keyboard, NumberPad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | - | Yes |
| Features | Chiclet keyboard | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Slots | 2 x M.2 (PCI Express 3.0 x4) (1 free) | - |
|---|---|---|
| Interfaces | HDMI LAN (on supplied adapter) Headphone/microphone combo jack USB 3.2 Gen 2 2 x USB-C (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) |
USB 2.0 USB 3.2 Gen 1 (Always On) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
| SOFTWARE | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Operating System (OS) | Windows 10 Pro | Windows 11 Pro - English |
|---|
| MISCELLANEOUS | ASUS ExpertBook B5 (B5302CEA) | Lenovo ThinkPad E15 Gen 4 (21E6) |
|---|
| Included Accessories | USB-C power adapter, Micro HDMI to LAN adapter | USB-C 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 security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | System password, hard drive password, MIL-STD-810H tested | Administrator password, power-on password, MIL-STD-810H tested, self-healing BIOS, NVMe password |
| Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TUV Rheinland Low Blue Light (Software Solution) |
| Repairability Index | 7.3 (out of 10) | - |
| ENERGY STAR Certified | - | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | Limited warranty - 1 year | Base warranty - 1 year - pick-up and return Extended warranty - 1 year - on-site |
| Model Number | EG0391R | - |
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