| Processor | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Processor model | i5-10210U | N4000 |
| Processor socket | BGA 1528 | BGA 1090 |
| Processor threads | 8 | 2 |
| Processor cores | 4 | 2 |
| Processor codename | Comet Lake | Gemini Lake |
| Processor family | 10th gen Intel Core i5 | Intel Celeron |
| Processor frequency | 1.6 GHz | 1.1 GHz |
| Processor boost frequency | 4.2 GHz | 2.6 GHz |
| Processor cache | 6 MB | |
| Processor boost cache | | 4 MB |
| Thermal Design Power (TDP) | 15 W | 6 W |
| Processor lithography | | 14 nm |
| Software | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Operating system installed | Windows 10 Pro | |
| Operating system architecture | 64-bit | |
| Operating System | | Windows 10 Home S |
| Display & Graphics | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Panel type | IPS | |
| Aspect ratio | 16:9 | 0.672916667 |
| Display brightness | 300 cd/m? | |
| Display diagonal | 13.3 inch | 13.3 inch |
| Display resolution | 1920 x 1080 pixels | 1920 x 1080 pixels |
| Dual-screen | No | |
| HD type | Full HD | Full HD |
| Graphics card | | Intel UHD Graphics 600 |
| 3D | No | |
| LED backlight | Yes | |
| Graphics adapter memory | | 8 GB |
| NTSC coverage | 72% | |
| Graphics card adapter max frequency: | | 650 MHz |
| Graphics graphics adapter base frequency | | 200 MHz |
| Touch technology | Multi-touch | |
| Touchscreen | Capacitive | |
| Discrete graphics adapter | No | No |
| Discrete graphics adapter model | Not available | Not available |
| Maximum on-board graphics adapter memory | 32 GB | |
| Number of execution units | 24 | |
| On-board graphics adapter | Yes | |
| On-board graphics adapter 4K support | Yes | |
| On-board graphics adapter base frequency | 300 MHz | |
| On-board graphics adapter DirectX version | 12.0 | |
| On-board graphics adapter dynamic frequency (max) | 1100 MHz | |
| On-board graphics adapter family | Intel UHD Graphics | |
| On-board graphics adapter model | Intel UHD Graphics | Intel UHD Graphics 600 |
| On-board graphics adapter OpenGL | 4.5 | |
| Memory | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Internal memory | 8 GB | 4 GB |
| Maximum internal memory | 8 GB | |
| Memory clock speed | 2400 MHz | |
| Memory form factor | On-board | |
| Internal memory type | DDR4-SDRAM | |
| ECC | No | |
| Storage | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Storage | | 128 GB SSD |
| SSD capacity | 256 GB | |
| SSD interface | NVMe | |
| SSD form factor | M.2 | |
| Storage media | SSD | |
| Number of SSDs installed | 1 | |
| Total SSDs capacity | 256 GB | |
| Total storage capacity | 256 GB | |
| LightScribe | No | |
| Optical drive type | No | No |
| Card reader integrated | No | |
| Network & Communication | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| WiFi Standards | | 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| 3G | No | |
| 4G | Yes | |
| Antenna type | 2x2 | |
| Bluetooth | Yes | Yes |
| Bluetooth version | 5.0 | |
| Ethernet LAN | No | No |
| Miracast | No | |
| NFC | No | |
| Wi-Fi | Wi-Fi 5 (802.11ac) | |
| Wi-Fi standards | Wi-Fi 5 (802.11ac) | |
| WWAN | Yes | |
| Interfaces/Ports | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| HDMI | | 1 |
| USB 2.0 | | 1 |
| Charging port type | DC-in jack | |
| Combo headphone/mic port | Yes | |
| TV out | No | |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A | 2 | |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C | 1 | |
| USB Type-C DisplayPort Alternate Mode | Yes | |
| Input Devices | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Keyboard Device | | Touchpad |
| Keyboard backlit | Yes | |
| Keyboard language | English | |
| Numeric keypad | No | |
| Pointing device | Touchpad | |
| Windows keys | Yes | |
| Audio | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Audio decoders | Dolby Atmos | |
| Audio system | Dolby Audio | |
| Built-in microphone | Yes | |
| Built-in subwoofer | No | |
| Number of microphones | 2 | |
| Speaker power | 2 W | |
| Built-in Devices | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Auto focus | No | |
| Front camera | Yes | |
| Front camera HD type | HD | |
| Front camera signal format | 720p | |
| Privacy type | Privacy shutter | |
| Privacy camera | Yes | |
| Rear camera | No | |
| Swivel webcam | No | |
| Performance | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Ambient light sensor | No | |
| Electronic compass | No | |
| GPS | Yes | |
| Gyroscope | No | |
| Proximity sensor | Yes | |
| Power | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| AC Power Adapter | | 36 W |
| AC adapter power | 45 W | |
| Security | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Fingerprint reader | Yes | |
| Password protection | Yes | |
| Trusted Platform Module (TPM) | Yes | |
| Design | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Brand | Lenovo | |
| Family | Yoga | |
| Series | C | |
| Model name | C640 | |
| Part Number | 81XL000NUK | |
| Product type | Hybrid (2-in-1) | Hybrid (2-in-1) |
| Form factor | Convertible (Folder) | Convertible (Folder) |
| Product colour | Grey | |
| Housing material | Aluminium, Glass fiber, Polycarbonate | |
| Depth | 204.5 mm | 215 mm |
| Width | 306 mm | 315 mm |
| Height | 16.9 mm | 15.7 mm |
| Weight | 1.35 kg | 1.47 kg |
| Release Date | 2019-11-19 | |
| Battery Information | Lenovo Yoga C640 81XL000NUK | MEDION AKOYA E3221 30029627 |
| Battery cells | | 2 |
| Battery capacity | 60 Wh | 5450 mAh |
| Battery type | Lithium-Ion (Li-Ion) | Lithium Polymer (LiPo) |
| Battery life | 20 h | |
