In depth comparison and review of Lenovo ThinkPad E15 Gen 4 (21ED) and ASUS ExpertBook B9 (B1500CBA). 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 E15 Gen 4 (21ED) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
efficient performance
comfortable keyboard
good security features
affordable price
average display quality
limited graphics power
moderate battery life
noisy under load
Advantages and disadvantages of ASUS ExpertBook B9 (B1500CBA) based on its technical characteristics, features, user experience, expert reviews and price level.
ultra-lightweight design
impressive battery life
robust security features
fast SSD storage
advanced connectivity options
average display quality
no dedicated GPU
limited upgradeability
higher price point
DESIGN AND DIMENSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 36.5 cm x 24 cm x 1.89 cm | 31.1 cm x 21.5 cm x 1.57 cm |
Weight | 1.78 kg | 990 g |
Case Material | Aluminium (top), polycarbonate ABS (bottom) | Magnesium-lithium alloy |
Colour | Black | Star black |
DISPLAY | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Screen Size (Type) | 15.6" - IPS | 14" OLED |
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LCD Backlight Technology | LED backlight | - |
Screen Resolution | 1920 x 1080 (Full HD) | 2880 x 1800 (WQXGA+) |
V-Sync Rate at Max Res. | - | 90 Hz |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:10 |
Image Brightness | 300 cd/m² | 400 cd/m² |
Colour Gamut | - | 100% sRGB |
Features | Anti-glare, 170° viewing angle | Glossy, Wide-View (IPS), 178° horizontal and vertical viewing angle, Pantone Validated, 1 ms response rate, 90% screen-to-body ratio, HDR 600 True Black |
PROCESSOR | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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CPU | AMD Ryzen 5 5625U / 2.3 GHz | Intel Core i7 (13th Gen) 1355U / 1.8 GHz |
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Max Turbo Speed | 4.3 GHz | 5.1 GHz |
Number of Cores | 6-core | 10-core |
Cache | L3 - 16 MB | 12 MB |
Platform Technology | - | Intel Evo |
Features | Integrated memory controller | Intel Smart Cache |
MEMORY | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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RAM | 8 GB (provided memory is soldered) | 16 GB (provided memory is soldered) |
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Max RAM Supported | 40 GB | - |
RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
Speed | 3200 MHz | - |
Rated Speed | 3200 MHz | - |
Form Factor | SO-DIMM 260-pin | - |
Slots Qty | 1 | - |
Empty Slots | 1 | - |
STORAGE | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 1 TB SSD M.2 PCIe 4.0 - NVM Express (NVMe) |
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AUDIO & VIDEO | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Graphics Processor (GPU) | AMD Radeon Graphics | Intel Iris Xe Graphics |
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Max Monitors Supported | 2 external monitor(s) | - |
Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
Camera | Yes - 1080p | Yes - 1080p |
Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus | Privacy shutter, IR camera, Windows Hello |
Sound | Stereo speakers, dual array microphone | Speakers, array microphone |
Codec | Realtek ALC3287 | - |
Compliant Standards | High Definition Audio, Dolby Audio | Dolby Atmos |
Audio Features | Harman-branded | Output: Smart Amplification technology; Input: AI noise cancelling |
COMMUNICATIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | NFC, 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3 |
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Wireless Controller | M.2 Card | - |
Network Interface | Gigabit Ethernet | - |
Ethernet Controller | Realtek RTL8111H-CG | - |
Features | Wake-on-LAN (WOL), dual stream (2x2) | Gigabit Ethernet via optional Ethernet (RJ-45) adapter, dual stream (2x2) |
BATTERY | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Technology | Lithium polymer | 3-cell Lithium Ion |
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Battery Capacity (Size) | 57 Wh | 63 Wh |
Battery Life | Up to 16.5 hours | - |
AC ADAPTER | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
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Output | 65 Watt | 65 Watt, 20 V, 3.25 A |
INPUT | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Type | Keyboard, TrackPoint, UltraNav | Keyboard, NumberPad |
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Numeric Keypad | Yes | - |
Keyboard Backlight | Yes | Yes |
Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls | Spill-resistant, chiclet keyboard, 1.5mm travel distance |
CONNECTIONS & EXPANSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Slots | 2 x M.2 Card (1 free) | - |
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Interfaces | USB 2.0 USB 3.2 Gen 1 (Always On) USB-C 3.2 Gen 1 (supports DisplayPort 1.2 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
Headphone/microphone combo jack 2 x USB-C (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) USB 3.2 Gen 2 HDMI 2.1 Micro-HDMI |
SOFTWARE | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Operating System (OS) | Windows 11 Pro - English | Windows 11 Pro |
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MISCELLANEOUS | Lenovo ThinkPad E15 Gen 4 (21ED) | ASUS ExpertBook B9 (B1500CBA) |
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Included Accessories | USB-C power adapter | USB-C power adapter, Micro HDMI to LAN adapter |
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Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | 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 | Administrator password, power-on password, MIL-STD-810H tested, self-healing BIOS, NVMe password | System password, hard drive password, MIL-STD-810H tested, Computrace ready from BIOS, Cortana support |
Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TUV Rheinland Low Blue Light (Software Solution) | RoHS, REACH, FSC Mix |
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 | Base warranty - 1 year - pick-up and return Extended warranty - 1 year - on-site |
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Model Number | - | BQ1288X |