Lenovo ThinkPad X13 Gen 4 (21EX) vs. ASUS P1511CEA (EJI3X)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo ThinkPad X13 Gen 4 (21EX) and ASUS P1511CEA (EJI3X). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.

Lenovo ThinkPad X13 Gen 4 (21EX) Review

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

ASUS P1511CEA (EJI3X) Review

Advantages and disadvantages of ASUS P1511CEA (EJI3X) based on its technical characteristics, features, user experience, expert reviews and price level.

affordable price

lightweight design

solid build quality

decent battery life

fast SSD storage

average display quality

limited graphics performance

no backlit keyboard

fewer USB ports

Laptop Comparison and Tests

Difference between Lenovo ThinkPad X13 Gen 4 (21EX) and ASUS P1511CEA (EJI3X)
86 % - Design
84 % - Display
85 % - Performance
85 % - Connectivity
85 % - Battery
73 % - Design
65 % - Display
72 % - Performance
75 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

Lenovo ThinkPad X13 Gen 4 (21EX) vs. ASUS P1511CEA (EJI3X) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Product Type Notebook Notebook
Dimensions (WxDxH) 30.17 cm x 21.48 cm x 1.595 cm 36 cm x 23.5 cm x 1.99 cm
Weight 1.09 kg 1.8 kg
Case Material Aluminium (bottom), carbon fibre hybrid (top) -
Colour Deep black Slate grey
DISPLAY Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Screen Size (Type) 13.3" - IPS 15.6"
Screen Resolution 1920 x 1200 (WUXGA) 1920 x 1080 (Full HD)
V-Sync Rate at Max Res. - 60 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:10 16:9
Image Brightness 300 cd/m² 250 cd/m²
Colour Gamut 100% sRGB 45% NTSC
Features Anti-glare Anti-glare, NanoEdge display, IPS-level, 83% screen-to-body ratio
PROCESSOR Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
CPU Intel Core i5 (13th Gen) 1335U / 1.3 GHz Intel Core i3 (11th Gen) 1115G4 / 3 GHz
Max Turbo Speed 4.6 GHz 4.1 GHz
Number of Cores 10-core Dual-Core
Cache 12 MB 6 MB
Platform Technology Intel Evo -
Features Integrated memory controller -
MEMORY Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
RAM 16 GB (provided memory is soldered) 8 GB (provided memory is soldered)
Max RAM Supported - 16 GB
RAM Type LPDDR5 SDRAM DDR4 SDRAM
Speed 4800 MHz -
Rated Speed 6400 MHz -
Form Factor - SO-DIMM 260-pin
Slots Qty - 1
Empty Slots - 1
STORAGE Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) 256 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Graphics Processor (GPU) Intel Iris Xe Graphics Intel UHD Graphics
Max Monitors Supported 3 external monitor(s) -
Video System Features Functions as Intel UHD graphics (for single-channel memory) -
Camera Yes - 1080p Yes - VGA
Camera Features Privacy shutter, fixed focus -
Sound Stereo speakers, dual array microphone Speakers, microphone
Codec Realtek ALC3287 -
Compliant Standards High Definition Audio, Dolby Audio -
Audio Features Input: Dolby Voice, 360° far-field -
COMMUNICATIONS Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Wireless Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) 802.11a/b/g/n/ac, Bluetooth 5.1
Wireless Controller Intel Wi-Fi 6E AX 211 -
Network Interface - Gigabit Ethernet
Features Dual stream (2x2) Single stream (1x1)
WWAN
Generation 4G upgradable -
BATTERY Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Technology Lithium polymer 2-cell Lithium Ion
Battery Capacity (Size) 54.7 Wh 37 Wh
AC ADAPTER Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Input AC 100-240 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 45 Watt, 19 V, 2.37 A
INPUT Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Type Keyboard, TrackPoint, UltraNav Keyboard, touchpad
Numeric Keypad - Yes
Keyboard Backlight Yes -
Features Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls Chiclet keyboard, 1.4mm travel distance
CONNECTIONS & EXPANSIONS Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Slots - 1 x Serial ATA (1 free)
1 x M.2 (PCI Express 3.0 x4) (0 free)
Interfaces 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
Headphone/microphone combo jack
2 x USB 2.0
USB 3.2 Gen 1
USB-C 3.2 Gen 1
HDMI 1.4
LAN (on supplied adapter)
SOFTWARE Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Operating System (OS) Windows 11 Pro - English Windows 11 Home
Software Included Glance by Mirametrix, Intel Connectivity Performance Suite McAfee LiveSafe, MyASUS, Microsoft 365 (1 month trial)
MISCELLANEOUS Lenovo ThinkPad X13 Gen 4 (21EX) ASUS P1511CEA (EJI3X)
Included Accessories USB-C slim power adapter Power adapter, USB-A to RJ45 gigabit ethernet adapter
Security Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader Firmware Trusted Platform Module (TPM) solution
Security Slot Type Kensington nano 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, 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 System password, anti-shock hard drive
Compliant Standards RoHS, Energy-using Products (EuP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 -
Max Operating Temperature 35 °C -
Min Operating Temperature 5 °C -
Humidity Range Operating 8 - 95% -
Manufacturer Warranty Base warranty - 3 years - pick-up and return
Base warranty - battery - 1 year
Extended warranty - 1 year - on-site - response time: next business day
Limited warranty - 1 year - pick-up and return
Other Comparisons with Lenovo ThinkPad X13 Gen 4 (21EX)
Other Comparisons with ASUS P1511CEA (EJI3X)
Other Popular Laptop Comparisons
Other projects: