Lenovo IdeaPad S145-15API (81UT) vs. Lenovo ThinkBook 14 G6 IRL (21KG)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo IdeaPad S145-15API (81UT) and Lenovo ThinkBook 14 G6 IRL (21KG). 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 IdeaPad S145-15API (81UT) Review

Advantages and disadvantages of Lenovo IdeaPad S145-15API (81UT) based on its technical characteristics, features, user experience, expert reviews and price level.

affordable price

lightweight design

decent processor performance

sufficient connectivity options

simple user interface

average display quality

limited battery life

modest graphics capability

no backlight keyboard

Lenovo ThinkBook 14 G6 IRL (21KG) Review

Advantages and disadvantages of Lenovo ThinkBook 14 G6 IRL (21KG) based on its technical characteristics, features, user experience, expert reviews and price level.

efficient multitasking capabilities

solid build quality

responsive fingerprint sensor

good value pricing

adequate port selection

average battery life

dim display brightness

mediocre speaker quality

no thunderbolt support

Laptop Comparison and Tests

Difference between Lenovo IdeaPad S145-15API (81UT) and Lenovo ThinkBook 14 G6 IRL (21KG)
69 % - Design
63 % - Display
65 % - Performance
72 % - Connectivity
65 % - Battery
86 % - Design
75 % - Display
75 % - Performance
85 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

Lenovo IdeaPad S145-15API (81UT) vs. Lenovo ThinkBook 14 G6 IRL (21KG) Comparison Chart
DESIGN AND DIMENSIONS Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Product Type Notebook Notebook
Dimensions (WxDxH) 36.22 cm x 25.15 cm x 1.99 cm 31.35 cm x 22.4 cm x 1.69 cm
Weight 1.85 kg 1.38 kg
Case Material Polycarbonate ABS Aluminium (top), aluminium (bottom)
Colour Granite black IMR Dual tone arctic grey
DISPLAY Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Screen Size (Type) 15.6" - TN 14" - IPS
LCD Backlight Technology LED backlight -
Screen Resolution 1366 x 768 (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 220 cd/m² 300 cd/m²
Colour Gamut - 45% NTSC
Features Anti-glare Anti-glare, Low Blue Light technology
PROCESSOR Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
CPU AMD Ryzen 3 3200U / 2.6 GHz Intel Core i5 (13th Gen) 1335U / 1.3 GHz
Max Turbo Speed 3.5 GHz 4.6 GHz
Number of Cores Dual-Core 10-core
Cache L3 - 4 MB 12 MB
64-bit Computing Yes -
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
RAM 4 GB (provided memory is soldered) 8 GB (1 x 8 GB)
Max RAM Supported 12 GB 64 GB
RAM Type DDR4 SDRAM DDR5 SDRAM
Speed 2400 MHz 5200 MHz
Rated Speed 2400 MHz 5200 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 262-pin
Slots Qty 1 2
Empty Slots 1 1
STORAGE Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Main Storage Size (HDD/SSD) 128 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) 256 GB SSD M.2 2242 PCIe 4.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Graphics Processor (GPU) AMD Radeon Vega 3 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 Yes - 1080p
Resolution 0.3 Megapixel -
Camera Features - Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera
Sound Stereo speakers, microphone Stereo speakers, dual array microphone
Codec - Realtek ALC3287
Compliant Standards High Definition Audio, Dolby Audio High Definition Audio, Dolby Audio
Audio Features - Input: noise-cancellation technology
COMMUNICATIONS Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.2 802.11a/b/g/n/ac/ax, Bluetooth 5.1
Wireless Controller M.2 Card M.2 Card
Network Interface - Gigabit Ethernet
Ethernet Controller - Intel I219-V
Features Single stream (1x1) Wake-on-LAN (WOL), dual stream (2x2)
BATTERY Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Technology Lithium Ion Lithium polymer
Battery Capacity (Size) 30 Wh 45 Wh
Battery Life Up to 4 hours -
AC ADAPTER Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Input AC 120/230 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 65 Watt
INPUT Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Type Keyboard, touchpad Keyboard, touchpad
Numeric Keypad Yes -
Keyboard Backlight - Yes
Features Multi-touch touchpad, buttonless touchpad Spill-resistant, multi-touch touchpad, buttonless touchpad, precision glass touchpad
CONNECTIONS & EXPANSIONS Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Slots - 2 x M.2 (PCI Express 4.0 x4) (1 free)
Interfaces USB 2.0
2 x USB 3.1 Gen 1
HDMI
Headphone/microphone combo jack
USB 3.2 Gen 1
USB 3.2 Gen 1 (Always On)
USB-C 3.2 Gen 2 (supports DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0)
HDMI (4K support)
LAN
Headphone/microphone combo jack
Memory Card Reader 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card)
SOFTWARE Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Operating System (OS) Windows 10 Home in S mode - English Windows 11 Pro - English
Software Included Microsoft Office (30 days trial) Microsoft Office (Trial)
MISCELLANEOUS Lenovo IdeaPad S145-15API (81UT) Lenovo ThinkBook 14 G6 IRL (21KG)
Included Accessories Power adapter USB-C power adapter
Security Firmware Trusted Platform Module (TPM 2.0) Security Chip Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader
Security Slot Type - Kensington nano security slot
Theft/Intrusion Protection - Security lock slot (cable lock sold separately)
Features Administrator password, hard drive password, power-on password Administrator password, hard drive password, power-on password, MIL-STD-810H tested, Rapid Charge Pro, self-healing BIOS
Compliant Standards RoHS, Energy-Related Products (ErP) Lot 3 RoHS, Energy-Related Products (ErP) Lot 6, FSC, Energy-Related Products (ErP) Lot 26, TUV Rheinland Low Blue Light (Software Solution), TCO Certified 9.0
Max Operating Temperature - 35 °C
Min Operating Temperature - 5 °C
Humidity Range Operating - 8 - 95%
Manufacturer Warranty Limited warranty - 1 year - pick-up and return Limited warranty - 1 year - pick-up and return
Other Comparisons with Lenovo IdeaPad S145-15API (81UT)
Other Comparisons with Lenovo ThinkBook 14 G6 IRL (21KG)
Other Popular Laptop Comparisons
Other projects: