Detailed comparison and review of Lenovo ThinkPad X390 and Lenovo ThinkPad E15 (20RD). 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 ThinkPad X390 based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
impressive battery life
compact and portable
reliable performance
average display brightness
limited graphics capability
noisy under load
higher price point
Advantages and disadvantages of Lenovo ThinkPad E15 (20RD) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
good security features
decent battery life
affordable price point
mediocre display quality
average graphics performance
no thunderbolt support
heavier design
DESIGN AND DIMENSIONS | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 31.2 cm x 21.72 cm x 1.69 cm | 36.8 cm x 24.5 cm x 1.89 cm |
Weight | 1.33 kg | 1.9 kg |
Case Material | - | Aluminum, polycarbonate ABS |
Colour | - | Black |
DISPLAY | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Screen Size (Type) | 13.3" - TN | 15.6" - IPS |
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LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | 250 cd/m² | 250 cd/m² |
Colour Gamut | 45% | - |
Features | Anti-glare, 90° viewing angle | Anti-glare, 170° viewing angle |
PROCESSOR | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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CPU | Intel Core i5 (8th Gen) 8365U / 1.6 GHz | Intel Core i5 (10th Gen) 10210U / 1.6 GHz |
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Max Turbo Speed | 4.1 GHz | 4.2 GHz |
Number of Cores | Quad-Core | Quad-Core |
Cache | 6 MB | 6 MB |
64-bit Computing | Yes | Yes |
Features | Integrated memory controller | Integrated memory controller |
MEMORY | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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RAM | 8 GB | 8 GB (1 x 8 GB) |
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Max RAM Supported | - | 16 GB |
RAM Type | DDR4 SDRAM | DDR4 SDRAM |
Speed | - | 2666 MHz |
Rated Speed | - | 2666 MHz |
Form Factor | - | SO-DIMM 260-pin |
Slots Qty | - | 1 |
Empty Slots | - | 0 |
STORAGE | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Main Storage Size (HDD/SSD) | 256 GB SSD | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) |
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AUDIO & VIDEO | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel UHD Graphics |
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Camera | Yes - 720p | Yes - 720p |
Camera Features | - | ThinkShutter camera privacy |
Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
Codec | Realtek ALC3287 | Conexant CX11880 |
Compliant Standards | High Definition Audio, Dolby Audio Premium | High Definition Audio, Dolby Advanced Audio |
COMMUNICATIONS | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | Bluetooth 5.0, 802.11a/b/g/n/ac/ax |
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Wireless Controller | Intel Wireless-AC 9560 | Intel Wi-Fi 6 AX 201 - M.2 Card |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Ethernet Controller | - | Realtek R8111GUS |
Features | - | Dual stream (2x2) |
BATTERY | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Technology | Lithium Ion | Lithium Ion |
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Battery Capacity (Size) | - | 45 Wh |
Battery Life | - | Up to 12.2 hours |
AC ADAPTER | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | - | 65 Watt |
INPUT | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Type | Keyboard, TrackPoint, UltraNav | Keyboard, TrackPoint, UltraNav |
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Numeric Keypad | - | Yes |
Keyboard Backlight | - | Yes |
Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, buttonless touchpad |
CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) HDMI Lenovo Ethernet extension connector Dock Headphone/microphone combo jack LAN (on supplied cable) |
USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB 2.0 USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) HDMI LAN Headphone/microphone combo jack |
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Memory Card Reader | Yes (microSD) | - |
SOFTWARE | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Operating System (OS) | Windows 10 Pro (Microsoft Authorized Refurbisher (MAR)) | Windows 10 Home 64-bit Edition - English |
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MISCELLANEOUS | Lenovo ThinkPad X390 | Lenovo ThinkPad E15 (20RD) |
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Dockable | Yes | - |
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Included Accessories | - | USB-C power adapter |
Security | - | Trusted Platform Module (TPM 2.0) Security Chip |
Security Slot Type | Kensington security slot | Kensington security slot |
Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
Features | - | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
Compliant Standards | ISO 9001, ISO 14001, ISO 27001 | RoHS |
SAR Value | - | 0.367 W/kg (body), 0.367 W/kg (limb) |
ENERGY STAR Certified | Yes | Yes |
EPEAT Compliant | - | EPEAT Silver |
Manufacturer Warranty | - | Limited warranty - 3 years - on-site Limited warranty - battery - 1 year |