Detailed comparison and review of Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) and ASUS R521JA (EJ974T). 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 ThinkBook 13s-IML (Lenovo ThinkBook 13s) based on its technical characteristics, features, user experience, expert reviews and price level.
slim lightweight design
fast ssd storage
good battery life
comfortable keyboard
decent display quality
average graphics performance
no thunderbolt support
limited port selection
mediocre speaker quality
Advantages and disadvantages of ASUS R521JA (EJ974T) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
lightweight design
decent battery life
adequate performance
average display quality
limited storage capacity
no backlit keyboard
basic graphics card
DESIGN AND DIMENSIONS | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 30.76 cm x 21.64 cm x 1.59 cm | 36 cm x 23.5 cm x 2.29 cm |
Weight | 1.32 kg | 1.9 kg |
Case Material | Aluminum | - |
Colour | Mineral grey | Transparent silver |
DISPLAY | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Screen Size (Type) | 13.3" - IPS | 15.6" |
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LCD Backlight Technology | 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 | 300 cd/m² | 200 cd/m² |
Colour Gamut | - | 45% NTSC |
Features | Anti-glare, 170° viewing angle, Dolby Vision | Anti-glare, 83% screen-to-body ratio |
PROCESSOR | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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CPU | Intel Core i5 (10th Gen) 10210U / 1.6 GHz | Intel Core i5 (10th Gen) 1035G1 / 1 GHz |
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Max Turbo Speed | 4.2 GHz | 3.6 GHz |
Number of Cores | Quad-Core | Quad-Core |
Cache | 6 MB | 6 MB |
64-bit Computing | Yes | - |
Features | Integrated memory controller | - |
MEMORY | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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RAM | 8 GB (1 x 8 GB) | 4 GB (provided memory is soldered) |
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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 ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) | 512 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) |
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AUDIO & VIDEO | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Graphics Processor (GPU) | Intel UHD Graphics | Intel UHD Graphics |
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Camera | Yes - 720p | Yes - VGA |
Camera Features | ThinkShutter camera privacy | - |
Sound | Stereo speakers, dual array microphone | Speaker, microphone |
Compliant Standards | High Definition Audio, Dolby Audio X3 | - |
Audio Features | Harman audio technology | Output: ASUS SonicMaster |
COMMUNICATIONS | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
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Wireless Controller | M.2 Card | - |
Features | Dual stream (2x2) | Single stream (1x1) |
BATTERY | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Technology | Lithium Ion | 2-cell Lithium Ion |
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Battery Capacity (Size) | 45 Wh | 32 Wh |
Battery Life | Up to 11 hours | - |
AC ADAPTER | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
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Output | 65 Watt | 45 Watt, 19 V, 2.37 A |
INPUT | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Type | Keyboard, touchpad | Keyboard, touchpad |
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Numeric Keypad | - | Yes |
Keyboard Backlight | Yes | - |
Features | Multi-touch touchpad, buttonless touchpad | Chiclet keyboard |
CONNECTIONS & EXPANSIONS | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack |
USB 3.2 Gen 1 USB-C 3.2 Gen 1 2 x USB 2.0 HDMI Headphone/microphone combo jack |
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Memory Card Reader | - | Yes (microSD) |
SOFTWARE | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Operating System (OS) | Windows 10 Home 64-bit Edition - English | Windows 10 Home |
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Software Included | Microsoft Office (30 days trial) | - |
MISCELLANEOUS | Lenovo ThinkBook 13s-IML (Lenovo ThinkBook 13s) | ASUS R521JA (EJ974T) |
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Included Accessories | USB-C power adapter | Power adapter |
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Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM) Security Chip |
Features | Administrator password, hard drive password, power-on password, RapidCharge | - |
Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | - |
SAR Value | 0.568 W/kg (body), 0.568 W/kg (limb) | - |
ENERGY STAR Certified | Yes | - |
Manufacturer Warranty | Limited warranty - 3 years - pick-up and return | - |
Model Number | IML 20RR | - |