In depth comparison and review of Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) and Lenovo ThinkPad X1 Yoga Gen 8 (21HQ). 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 Yoga C640-13IML LTE (Lenovo Yoga C640) based on its technical characteristics, features, user experience, expert reviews and price level.
long battery life
lightweight and portable
integrated LTE connectivity
responsive touchscreen display
solid build quality
limited storage capacity
average graphics performance
no optical drive
higher price point
Advantages and disadvantages of Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) based on its technical characteristics, features, user experience, expert reviews and price level.
excellent build quality
versatile 2-in-1 design
impressive battery life
superb keyboard experience
high-resolution display
higher price point
limited graphics performance
no HDMI port
moderate storage options
| DESIGN AND DIMENSIONS | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Product Type | Notebook - flip design | Notebook - flip design |
|---|---|---|
| Dimensions (WxDxH) | 30.6 cm x 20.448 cm x 1.695 cm | 31.44 cm x 22.23 cm x 1.553 cm |
| Weight | 1.35 kg | 1.38 kg |
| Case Material | Aluminum, polycarbonate, glass-fibre | Aluminium (top), aluminium (bottom) |
| Colour | Iron grey | Storm grey |
| DISPLAY | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Screen Size (Type) | 13.3" - IPS | 14" - IPS |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | Yes (10-point multi-touch) |
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1200 (WUXGA) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 300 cd/m² | 500 cd/m² |
| Colour Gamut | 72% NTSC | 100% sRGB |
| Privacy Technology | - | ThinkPad Privacy Guard |
| Features | Anti-glare | Anti-glare, One Glass Solution |
| PROCESSOR | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| CPU | Intel Core i5 (10th Gen) 10210U / 1.6 GHz | Intel Core i5 (13th Gen) 1335U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 4.2 GHz | 4.6 GHz |
| Number of Cores | Quad-Core | 10-core |
| Cache | 6 MB | 12 MB |
| 64-bit Computing | Yes | - |
| Platform Technology | - | Intel Evo |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| RAM | 8 GB (provided memory is soldered) | 16 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | 2400 MHz | 6400 MHz |
| Rated Speed | 2400 MHz | 6400 MHz |
| STORAGE | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel Iris Xe Graphics |
|---|---|---|
| Memory Allocation Technology | Shared Video Memory (UMA) | - |
| Max Monitors Supported | 1 external monitor(s) | 3 external monitor(s) |
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - 720p | Yes - 1080p |
| Camera Features | Privacy shutter | Privacy shutter, fixed focus, Discrete IR, MIPI, Computer Vision |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two tweeters, two woofers, quad array microphone |
| Codec | - | Realtek ALC3306 |
| Compliant Standards | High Definition Audio, Dolby Atmos | High Definition Audio, Dolby Atmos |
| Audio Features | - | Input: Dolby Voice, 360° far-field |
| COMMUNICATIONS | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | NFC, Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | M.2 Card | Intel Wi-Fi 6E AX 211 |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| WWAN |
|---|
| Generation | 4G | 4G |
|---|---|---|
| Technology | LTE Advanced | LTE |
| Controller | FIBOCOM L850-GL - M.2 Card | FIBOCOM L860-GL-16 - M.2 Card |
| BATTERY | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 60 Wh | 57 Wh |
| Battery Life | Up to 22 hours | - |
| AC ADAPTER | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt | 65 Watt |
| INPUT | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Type | Keyboard, digitizer, touchpad, digital pen | Keyboard, digitizer, TrackPoint, digital pen, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad, air intake key design |
| CONNECTIONS & EXPANSIONS | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Slots | 1 x Nano-SIM card (1 free) | - |
|---|---|---|
| Interfaces | USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) 2 x USB 3.1 Gen 1 Headphone/microphone combo jack |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) Headphone/microphone combo jack HDMI (4K support) |
| SOFTWARE | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - English | Windows 11 Pro - English |
|---|---|---|
| Software Included | Microsoft Office 365 Personal | Glance by Mirametrix, Intel Connectivity Performance Suite |
| MISCELLANEOUS | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X1 Yoga Gen 8 (21HQ) |
|---|
| Included Accessories | Power adapter, Lenovo Digital Pen | Lenovo Integrated Pen, USB-C slim power adapter |
|---|---|---|
| Integrated Options | Proximity sensor, G-sensor | - |
| Security | Fingerprint reader | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | - | Kensington nano security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | Administrator password, hard drive password, power-on password | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, Firmware Resiliency 3.0, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication |
| Navigation Receiver | GPS | - |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, Energy-Related Products (ErP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0, TUV Rheinland Eyesafe 2.0 Display |
| SAR Value | 1.4 W/kg (body), 1.4 W/kg (limb) | - |
| ENERGY STAR Certified | Yes | - |
| 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 - response time: next business day |
| Model Number | 13IML LTE 81XL | - |
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