Side by side comparison and review of Lenovo Yoga C640-13IML (Lenovo Yoga C640) and ASUS ExpertBook B3 Flip (B3402FEA). 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 Lenovo Yoga C640-13IML (Lenovo Yoga C640) based on its technical characteristics, features, user experience, expert reviews and price level.
long battery life
lightweight design
responsive touchscreen
solid build quality
fast charging support
limited port selection
average speaker quality
no dedicated GPU
higher price point
Advantages and disadvantages of ASUS ExpertBook B3 Flip (B3402FEA) based on its technical characteristics, features, user experience, expert reviews and price level.
360-degree hinge versatility
robust military-grade durability
touchscreen with stylus support
convenient physical webcam shutter
fast charging technology
average battery life
modest display brightness
limited graphics performance
heavier than competitors
| DESIGN AND DIMENSIONS | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Product Type | Notebook - flip design | Notebook - flip design |
|---|---|---|
| Dimensions (WxDxH) | 30.6 cm x 20.448 cm x 1.695 cm | 32.9 cm x 22.39 cm x 1.95 cm |
| Weight | 1.35 kg | 1.61 kg |
| Case Material | Aluminum, polycarbonate, glass-fibre | Plastic (top), plastic (bottom), aluminium (LCD cover) |
| Colour | Iron grey | Star black (LCD cover), star black (top), star black (bottom) | Star black |
| DISPLAY | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Screen Size (Type) | 13.3" - IPS | 14" |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | Yes |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 400 cd/m² | 250 cd/m² |
| Colour Gamut | 72% NTSC | 45% NTSC |
| Features | Anti-glare, 72% NTSC colour gamut | Glossy, WideView, 80% screen-to-body ratio |
| PROCESSOR | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| CPU | Intel Core i5 (10th Gen) 10210U / 1.6 GHz | Intel Core i5 (11th Gen) 1135G7 / 2.4 GHz |
|---|---|---|
| Max Turbo Speed | 4.2 GHz | 4.2 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | 8 MB |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | Intel Smart Cache |
| MEMORY | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | - | 40 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | - |
| Rated Speed | 2400 MHz | - |
| Form Factor | - | SO-DIMM 260-pin |
| Slots Qty | - | 1 |
| Empty Slots | - | 0 |
| STORAGE | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) | 256 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| 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 (front) |
| Resolution | - | 13 Megapixel (rear) |
| Camera Features | Privacy shutter | Privacy shutter |
| Sound | Stereo speakers, dual array microphone | Speakers, array microphone |
| Compliant Standards | High Definition Audio, Dolby Atmos | - |
| COMMUNICATIONS | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 |
|---|---|---|
| Wireless Controller | M.2 Card | - |
| Network Interface | - | Gigabit Ethernet |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G upgradable |
|---|---|---|
| Controller | - | SIM card |
| BATTERY | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Technology | Lithium Ion | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 60 Wh | 50 Wh |
| Battery Life | Up to 20 hours | - |
| AC ADAPTER | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt | 65 Watt, 19 V, 3.42 A |
| INPUT | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Type | Keyboard, digitizer, touchpad, digital pen | Keyboard, stylus, NumberPad |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Multi-touch touchpad, buttonless touchpad | Spill-resistant, chiclet keyboard |
| CONNECTIONS & EXPANSIONS | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Slots | - | 1 x SIM card (1 free) |
|---|---|---|
| Interfaces | 2 x USB 3.1 Gen 1 USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) Headphone/microphone combo jack |
HDMI Headphone/microphone combo jack USB 3.2 Gen 1 2 x USB-C (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) LAN USB 2.0 |
| Memory Card Reader | - | Yes (microSD) |
| SOFTWARE | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition - English | Windows 11 Pro |
|---|---|---|
| Software Included | Microsoft Office (Trial) | McAfee, MyASUS, Microsoft 365 (1 month trial) |
| MISCELLANEOUS | Lenovo Yoga C640-13IML (Lenovo Yoga C640) | ASUS ExpertBook B3 Flip (B3402FEA) |
|---|
| Included Accessories | Power adapter, Lenovo Active Pen | USB-C power adapter, MPP 2.0 garaged stylus |
|---|---|---|
| Integrated Options | Accelerometer | - |
| Security | Firmware 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 |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | Administrator password, power-on password | MIL-STD-810H tested, Computrace ready from BIOS |
| Compliant Standards | RoHS | ISO 22196, TUV Rheinland Flicker Free Certification, TUV Rheinland Low Blue Light (Software Solution) |
| SAR Value | 0.32 W/kg (body), 0.32 W/kg (limb) | - |
| ENERGY STAR Certified | Yes | - |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | International warranty - 3 years |
| Model Number | 13IML 81UE | EC0710X |
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