ASUS VivoBook 15 (X512FA) vs. Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)

Laptop Comparison, Reviews and Tests

Detailed comparison and review of ASUS VivoBook 15 (X512FA) and Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ). 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 VivoBook 15 (X512FA) Review

Advantages and disadvantages of ASUS VivoBook 15 (X512FA) based on its technical characteristics, features, user experience, expert reviews and price level.

affordable price

solid build quality

decent processor performance

ample storage options

lightweight design

average battery life

mediocre display quality

limited graphics capability

no backlit keyboard

Laptop Comparison and Tests

Difference between ASUS VivoBook 15 (X512FA) and Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
81 % - Design
66 % - Display
72 % - Performance
75 % - Connectivity
76 % - Battery

Laptop Specifications Comparison

ASUS VivoBook 15 (X512FA) vs. Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ) Comparison Chart
DESIGN AND DIMENSIONS ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Product Type Ultrabook Tablet - with detachable keyboard
Dimensions (WxDxH) 35.72 cm x 23.04 cm x 1.99 cm -
Dimensions (WxDxH) - tablet - 30.41 cm x 22.6 cm x 0.89 cm
Dimensions (WxDxH) / Weight Details - 30.41 cm x 22.6 cm x 0.89 cm / 890 g - tablet
30.41 cm x 22.6 cm x 1.51 cm / 1.27 kg - tablet with keyboard
Weight 1.7 kg 890 g
Case Material - Aluminum, magnesium alloy
Colour Transparent silver | Slate grey Black
DISPLAY ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Screen Size (Type) 15.6" 13" - IPS
Touchscreen - Yes (10-point multi-touch)
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 1920 x 1080 (Full HD) 3000 x 2000 (QHD+)
V-Sync Rate at Max Res. 60 Hz -
Widescreen Yes Yes
Image Aspect Ratio 16:9 3:2
Image Brightness - 400 cd/m²
Colour Gamut 45% NTSC -
Features ASUS Splendid Video Intelligence Technology, anti-glare Glossy, Corning Gorilla glass, WideView, anti-fingerprint
PROCESSOR ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
CPU Intel Pentium Gold 5405U / 2.3 GHz Intel Core i5 (8th Gen) 8250U / 1.6 GHz
Max Turbo Speed - 3.4 GHz
Number of Cores Dual-Core Quad-Core
Cache 2 MB 6 MB
64-bit Computing Yes Yes
Features - Integrated memory controller
MEMORY ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
RAM 4 GB (provided memory is soldered) 8 GB (provided memory is soldered)
Max RAM Supported 12 GB -
RAM Type DDR4 SDRAM LPDDR3 SDRAM
Speed 2400 MHz 1866 MHz
Rated Speed - 2133 MHz
Form Factor SO-DIMM 260-pin -
Slots Qty 1 -
Empty Slots 1 -
STORAGE ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Main Storage Size (HDD/SSD) 256 GB SSD SATA 6Gb/s 256 GB SSD M.2 PCIe - TCG Opal Encryption 2, NVM Express (NVMe) - Samsung
AUDIO & VIDEO ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Graphics Processor (GPU) Intel UHD Graphics Intel UHD Graphics 620
Camera Yes - HD Yes
Resolution - 8 Megapixel (rear), 2 Megapixel (front)
Camera Features - IR camera, rear camera with auto focus, rear camera with flash
Sound Stereo speakers, microphone Stereo speakers, two microphones
Codec - Realtek ALC3278
Audio Features ASUS SonicMaster -
COMMUNICATIONS ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.1 802.11a/b/g/n/ac, Bluetooth 4.1
Wireless Controller - Intel Dual Band Wireless-AC 8265 - M.2 Card
WWAN
Generation - 4G
Technology - UMTS, HSPA, HSPA+, DC-HSPA+, LTE Advanced
Controller - Sierra Wireless EM7455
BATTERY ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Technology 2-cell Lithium Ion
Battery Capacity (Size) 37 Wh 42 Wh
Battery Life - Up to 9.5 hours
AC ADAPTER ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Input AC 100-240 V (50/60 Hz) AC 120/230 V (50/60 Hz)
Output 45 Watt, 19 V, 2.37 A 65 Watt
INPUT ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Type Keyboard, touchpad Keyboard, digitizer, TrackPoint, digital pen, UltraNav
Numeric Keypad Yes -
Keyboard Backlight Yes Yes
Features - Volume control, multi-touch touchpad, buttonless touchpad
CONNECTIONS & EXPANSIONS ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Slots - 1 x Nano-SIM card (1 free)
Interfaces Headphone/microphone combo jack
USB 3.1 Gen 1
2 x USB 2.0
USB-C 3.1 Gen 1
HDMI
2 x USB-C 3.1 Gen 1 (Power Delivery 3.0)
Pogo keyboard connector
Headphone/microphone combo jack
Memory Card Reader Yes (microSD) Yes (microSD, microSDHC, microSDXC)
SOFTWARE ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Operating System (OS) Windows 10 Home Windows 10 Pro 64-bit Edition
MISCELLANEOUS ASUS VivoBook 15 (X512FA) Lenovo ThinkPad X1 Tablet (3rd Gen) (20KJ)
Dockable - Yes
Included Accessories Power adapter Keyboard, ThinkPad Pen Pro, USB-C power adapter, pen holder
Integrated Options - Ambient light sensor, 3-axis gyro sensor, 3-axis accelerometer, 3-axis compass
Security - Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader
Security Slot Type Kensington security slot Kensington mini security slot
Theft/Intrusion Protection Security lock slot (cable lock sold separately) Security lock slot (cable lock sold separately)
Features System password Reset switch, MIL-STD-810G tested
Navigation Receiver - GPS
Compliant Standards - RoHS, GREENGUARD, low halogen
SAR Value 0.304 W/kg (body), 0.304 W/kg (limb) 1.51 W/kg (body), 1.51 W/kg (limb)
ENERGY STAR Certified Yes -
Manufacturer Warranty Limited warranty - 1 year Limited warranty - 3 years - pick-up and return
Limited warranty - battery - 1 year
Model Number EJ1515T -
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