ASUS 15 (X515JA) vs. Lenovo ThinkPad T14s Gen 4 (21F9)

Laptop Comparison, Reviews and Tests

Detailed comparison and review of ASUS 15 (X515JA) and Lenovo ThinkPad T14s Gen 4 (21F9). 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.

ASUS 15 (X515JA) Review

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

Lenovo ThinkPad T14s Gen 4 (21F9) Review

Advantages and disadvantages of Lenovo ThinkPad T14s Gen 4 (21F9) based on its technical characteristics, features, user experience, expert reviews and price level.

robust build quality

excellent keyboard feel

impressive battery life

powerful processor options

bright display

higher price point

limited graphics performance

no OLED option

heavier than competitors

Laptop Comparison and Tests

Difference between ASUS 15 (X515JA) and Lenovo ThinkPad T14s Gen 4 (21F9)
76 % - Design
75 % - Display
65 % - Performance
75 % - Connectivity
75 % - Battery
86 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

ASUS 15 (X515JA) vs. Lenovo ThinkPad T14s Gen 4 (21F9) Comparison Chart
DESIGN AND DIMENSIONS ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
Product Type Notebook Notebook - 180-degree hinge design
Dimensions (WxDxH) 35.9 cm x 23.5 cm x 1.99 cm 31.75 cm x 22.69 cm x 1.69 cm
Weight 1.8 kg 1.26 kg
Case Material Plastic Aluminium (bottom), carbon fibre hybrid (top)
Colour Silver | Slate grey Deep black
DISPLAY ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
Screen Size (Type) 15.6" 14" - IPS
Touchscreen - Yes (10-point multi-touch)
LCD Backlight Technology LED backlight -
Screen Resolution 1920 x 1080 (Full HD) 1920 x 1200 (WUXGA)
V-Sync Rate at Max Res. - 60 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:10
Image Brightness 250 cd/m² 300 cd/m²
Colour Gamut 45% NTSC 45% NTSC
Features Anti-glare Anti-glare, on-cell touch technology
PROCESSOR ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
CPU Intel Core i3 (10th Gen) 1005G1 / 1.2 GHz AMD Ryzen 5 Pro 7540U / 3.2 GHz
Max Turbo Speed 3.4 GHz 4.9 GHz
Number of Cores Dual-Core 6-core
Cache 4 MB L3 - 16 MB
Features Intel Turbo Boost Technology 2.0, Intel Smart Cache Integrated memory controller
MEMORY ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
RAM 8 GB (1 x 4 GB + 4 GB (soldered)) 16 GB (provided memory is soldered)
RAM Type DDR4 SDRAM LPDDR5X SDRAM
Speed - 6400 MHz
Rated Speed - 7500 MHz
Form Factor SO-DIMM 260-pin -
Slots Qty 1 -
Empty Slots 0 -
STORAGE ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
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 - Kioxia
AUDIO & VIDEO ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
Graphics Processor (GPU) Intel UHD Graphics AMD Radeon 740M
Max Monitors Supported - 3 external monitor(s)
Camera Yes - HD Yes
Resolution - 5 Megapixel
Camera Features - Privacy shutter, Windows Hello, fixed focus, Discrete IR, Ultrasonic Human Presence Detection
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 T14s Gen 4 (21F9)
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 - Qualcomm NFA725A
Network Interface - Gigabit Ethernet
Features Dual stream (2x2) -
BATTERY ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
Technology 3-cell Lithium polymer
Battery Capacity (Size) 37 Wh 57 Wh
Battery Life Up to 7.7 hours -
AC ADAPTER ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
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 T14s Gen 4 (21F9)
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 T14s Gen 4 (21F9)
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 (Always On)
2 x USB4 (supports DisplayPort 1.4a Alt Mode) (Power Delivery 3.0)
HDMI (4K support)
Headphone/microphone combo jack
LAN (on supplied adapter)
SOFTWARE ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
Operating System (OS) Windows 11 Home Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence
Software Included - Glance by Mirametrix
MISCELLANEOUS ASUS 15 (X515JA) Lenovo ThinkPad T14s Gen 4 (21F9)
Included Accessories Power adapter USB-C power adapter, Lenovo USB-C to Ethernet Adapter
Security Firmware Trusted Platform Module (TPM) Security Chip Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, fingerprint 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, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication
Compliant Standards - RoHS, Energy-Related Products (ErP) 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 -
Model Number EJ2133W -
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