Detailed comparison and review of ASUS 15 (X515JA) and Lenovo ThinkPad X13 Gen 4 (21EX). 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 ASUS 15 (X515JA) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
lightweight design
solid build quality
adequate performance
good connectivity options
average battery life
basic display quality
limited storage capacity
no dedicated graphics
Advantages and disadvantages of Lenovo ThinkPad X13 Gen 4 (21EX) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
impressive security features
good battery life
portable design
average display brightness
limited graphics performance
noisy under load
higher price point
| DESIGN AND DIMENSIONS | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.9 cm x 23.5 cm x 1.99 cm | 30.17 cm x 21.48 cm x 1.595 cm |
| Weight | 1.8 kg | 1.09 kg |
| Case Material | Plastic | Aluminium (bottom), carbon fibre hybrid (top) |
| Colour | Silver | Slate grey | Deep black |
| DISPLAY | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Screen Size (Type) | 15.6" | 13.3" - IPS |
|---|---|---|
| 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 | 250 cd/m² | 300 cd/m² |
| Colour Gamut | 45% NTSC | 100% sRGB |
| Features | Anti-glare | Anti-glare |
| PROCESSOR | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| CPU | Intel Core i3 (10th Gen) 1005G1 / 1.2 GHz | Intel Core i5 (13th Gen) 1335U / 1.3 GHz |
|---|---|---|
| Max Turbo Speed | 3.4 GHz | 4.6 GHz |
| Number of Cores | Dual-Core | 10-core |
| Cache | 4 MB | 12 MB |
| Platform Technology | - | Intel Evo |
| Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Integrated memory controller |
| MEMORY | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| RAM | 8 GB (1 x 4 GB + 4 GB (soldered)) | 16 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | - | 4800 MHz |
| Rated Speed | - | 6400 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe 3.0 - NVM Express (NVMe) | 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | - | 3 external monitor(s) |
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - HD | Yes - 1080p |
| Camera Features | - | Privacy shutter, fixed focus |
| Sound | Speaker, microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3287 |
| Compliant Standards | - | High Definition Audio, Dolby Audio |
| Audio Features | ASUS SonicMaster | Input: Dolby Voice, 360° far-field |
| COMMUNICATIONS | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | - | Intel Wi-Fi 6E AX 211 |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G upgradable |
|---|
| BATTERY | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Technology | 3-cell | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 37 Wh | 54.7 Wh |
| Battery Life | Up to 7.7 hours | - |
| AC ADAPTER | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19 V, 3.42 A | 65 Watt |
| INPUT | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | Chiclet keyboard | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Slots | 1 x M.2 (PCI Express 3.0 x2) (0 free) | - |
|---|---|---|
| Interfaces | Headphone/microphone combo jack USB 3.2 Gen 1 USB-C 3.2 Gen 1 2 x USB 2.0 HDMI |
USB 3.2 Gen 1 (Always On) USB 3.2 Gen 1 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 | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Operating System (OS) | Windows 11 Home | Windows 11 Pro - English |
|---|---|---|
| Software Included | - | Glance by Mirametrix, Intel Connectivity Performance Suite |
| MISCELLANEOUS | ASUS 15 (X515JA) | Lenovo ThinkPad X13 Gen 4 (21EX) |
|---|
| Included Accessories | Power adapter | USB-C slim power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM) Security Chip | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader |
| Security Slot Type | Kensington security slot | Kensington nano security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | System 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 |
| Compliant Standards | - | RoHS, Energy-using Products (EuP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 |
| Repairability Index | 6.1 (out of 10) | - |
| Max Operating Temperature | - | 35 °C |
| Min Operating Temperature | - | 5 °C |
| Humidity Range Operating | - | 8 - 95% |
| Manufacturer Warranty | International warranty - 1 year | 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 | EJ2133W | - |
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