Side by side comparison and review of Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) and Lenovo ThinkPad X13 Yoga Gen 4 (21F2). 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 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 X13 Yoga Gen 4 (21F2) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
flexible 2-in-1 design
excellent keyboard comfort
good security features
reliable performance
average battery life
limited graphics power
higher price point
no 4K display option
| DESIGN AND DIMENSIONS | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X13 Yoga Gen 4 (21F2) |
|---|
| Product Type | Notebook - flip design | Notebook - flip design |
|---|---|---|
| Dimensions (WxDxH) | 30.6 cm x 20.448 cm x 1.695 cm | 30.17 cm x 21.46 cm x 1.64 cm |
| Weight | 1.35 kg | 1.21 kg |
| Case Material | Aluminum, polycarbonate, glass-fibre | Magnesium (bottom), magnesium (top) |
| Colour | Iron grey | Deep black |
| DISPLAY | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X13 Yoga Gen 4 (21F2) |
|---|
| Screen Size (Type) | 13.3" - IPS | 13.3" - 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 | 400 cd/m² |
| Colour Gamut | 72% NTSC | 100% sRGB |
| Features | Anti-glare | Anti-glare, One Glass Solution, Low Power, Eyesafe technology |
| PROCESSOR | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X13 Yoga Gen 4 (21F2) |
|---|
| 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 X13 Yoga Gen 4 (21F2) |
|---|
| RAM | 8 GB (provided memory is soldered) | 16 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | 2400 MHz | 4800 MHz |
| Rated Speed | 2400 MHz | 6400 MHz |
| STORAGE | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X13 Yoga Gen 4 (21F2) |
|---|
| 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 X13 Yoga Gen 4 (21F2) |
|---|
| 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 |
| Resolution | - | 5 Megapixel |
| Camera Features | Privacy shutter | Privacy shutter, Windows Hello, fixed focus, Discrete IR, Ultrasonic Human Presence Detection |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3287 |
| Compliant Standards | High Definition Audio, Dolby Atmos | High Definition Audio, Dolby Audio |
| Audio Features | - | Input: Dolby Voice, 360° far-field |
| COMMUNICATIONS | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X13 Yoga Gen 4 (21F2) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 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 upgradable |
|---|---|---|
| Technology | LTE Advanced | - |
| Controller | FIBOCOM L850-GL - M.2 Card | - |
| BATTERY | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X13 Yoga Gen 4 (21F2) |
|---|
| Technology | Lithium polymer | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 60 Wh | 54.7 Wh |
| Battery Life | Up to 22 hours | - |
| AC ADAPTER | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X13 Yoga Gen 4 (21F2) |
|---|
| 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 X13 Yoga Gen 4 (21F2) |
|---|
| 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 |
| CONNECTIONS & EXPANSIONS | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X13 Yoga Gen 4 (21F2) |
|---|
| 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 2.0 Alt Mode) (Power Delivery 3.0) HDMI 2.1 (4K support) Headphone/microphone combo jack |
| SOFTWARE | Lenovo Yoga C640-13IML LTE (Lenovo Yoga C640) | Lenovo ThinkPad X13 Yoga Gen 4 (21F2) |
|---|
| 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 X13 Yoga Gen 4 (21F2) |
|---|
| Included Accessories | Power adapter, Lenovo Digital Pen | Power adapter, 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, smart card 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 |
| 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 - 1 year - on-site - response time: next business day |
| Model Number | 13IML LTE 81XL | - |
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