Detailed comparison and review of Lenovo IdeaPad Flex 5 15IIL05 (81X3) and ASUS ExpertBook B5 (B5402FVA). With our comprehensive overview, you can simply compare dimensions, performance, storage, functions, but also other key features of both laptops and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the laptop that best fits your needs and expectations.
Advantages and disadvantages of Lenovo IdeaPad Flex 5 15IIL05 (81X3) based on its technical characteristics, features, user experience, expert reviews and price level.
flexible 2-in-1 design
responsive touchscreen display
affordable price point
solid build quality
decent battery life
moderate display brightness
average processor speed
limited graphics performance
no thunderbolt support
Advantages and disadvantages of ASUS ExpertBook B5 (B5402FVA) 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
limited graphics capability
higher price point
noisy under load
moderate storage options
| DESIGN AND DIMENSIONS | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Product Type | Notebook - flip design | Notebook - flip design |
|---|---|---|
| Dimensions (WxDxH) | 35.76 cm x 23.79 cm x 2.09 cm | 32.34 cm x 22.31 cm x 1.8 cm |
| Weight | 1.8 kg | 1.39 kg |
| Case Material | Aluminum, polycarbonate ABS | Aluminum, magnesium-aluminium |
| Colour | Graphite grey | Star black |
| DISPLAY | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Screen Size (Type) | 15.6" | 14" |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | Yes |
| LCD Backlight Technology | 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 | 250 cd/m² | 400 cd/m² |
| Colour Gamut | 45% | 100% sRGB |
| Features | Glossy, One Glass Solution, Wide Viewing Angle, capacitive touch screen | Anti-glare, 85% screen-to-body ratio |
| PROCESSOR | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| CPU | Intel Core i3 (10th Gen) 1005G1 / 1.2 GHz | Intel Core i7 (12th Gen) 1360P / 2.2 GHz |
|---|---|---|
| Max Turbo Speed | 3.4 GHz | 5 GHz |
| Number of Cores | Dual-Core | 12-core |
| Cache | 4 MB | L3 - 18 MB |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | Intel Smart Cache |
| MEMORY | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| RAM | 4 GB (provided memory is soldered) | 16 GB (1 x 8 GB + 8 GB (soldered)) |
|---|---|---|
| Max RAM Supported | - | 40 GB |
| RAM Type | DDR4 SDRAM | DDR5 SDRAM |
| Speed | 3200 MHz | - |
| Rated Speed | 3200 MHz | - |
| Form Factor | - | SO-DIMM 262-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 2242 PCIe - NVM Express (NVMe) | 512 GB SSD M.2 PCIe 4.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel Iris Xe Graphics |
|---|---|---|
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - 720p | Yes - 720p |
| Camera Features | Privacy shutter, fixed focus | Privacy shutter, IR camera, Windows Hello |
| Sound | Stereo speakers, dual array microphone | Speakers, array microphone |
| Compliant Standards | High Definition Audio, Dolby Atmos | Dolby Atmos |
| Audio Features | - | Input: AI noise cancelling |
| COMMUNICATIONS | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3 |
|---|---|---|
| Wireless Controller | M.2 Card | - |
| Network Interface | - | Gigabit Ethernet |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| BATTERY | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Technology | Lithium Ion | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 52.5 Wh | 63 Wh |
| Battery Life | Up to 10.5 hours | - |
| AC ADAPTER | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt, 20 V, 3.25 A |
| INPUT | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Type | Keyboard, touchpad | Keyboard, stylus, NumberPad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | Multi-touch touchpad | Chiclet keyboard, 1.5mm travel distance |
| CONNECTIONS & EXPANSIONS | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Slots | - | 2 x M.2 (PCI Express 4.0 x4) (1 free) |
|---|---|---|
| Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C (Power Delivery 3.0) HDMI Headphone/microphone combo jack |
USB 3.2 Gen 1 USB 3.2 Gen 2 2 x USB-C (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) HDMI 2.1 Headphone/microphone combo jack LAN |
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | Yes (microSD) |
| SOFTWARE | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Operating System (OS) | Windows 10 Home in S mode - English | Windows 11 Pro |
|---|---|---|
| Software Included | Microsoft Office (Trial) | MyASUS, Microsoft 365 (1 month trial) |
| MISCELLANEOUS | Lenovo IdeaPad Flex 5 15IIL05 (81X3) | ASUS ExpertBook B5 (B5402FVA) |
|---|
| Included Accessories | Power adapter | USB-C power adapter, MPP 2.0 ASUS Pen |
|---|---|---|
| Integrated Options | Accelerometer | - |
| Security | - | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | Hard drive password, power-on password, RapidCharge, smart charge | MIL-STD-810H tested, Cortana support |
| Compliant Standards | RoHS, ERP | - |
| SAR Value | 1.624 W/kg (body), 1.624 W/kg (limb) | - |
| ENERGY STAR Certified | Yes | - |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | - |
| Model Number | - | KAi715X |
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