Lenovo ThinkBook 13s-IWL (20R9) vs. Lenovo IdeaPad S145-15API (81UT)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo ThinkBook 13s-IWL (20R9) and Lenovo IdeaPad S145-15API (81UT). 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 ThinkBook 13s-IWL (20R9) Review

Advantages and disadvantages of Lenovo ThinkBook 13s-IWL (20R9) based on its technical characteristics, features, user experience, expert reviews and price level.

sleek aluminum design

lightweight and portable

sharp full HD display

solid state drive included

good battery life

limited port selection

no dedicated GPU

average audio quality

standard RAM capacity

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

Laptop Comparison and Tests

Difference between Lenovo ThinkBook 13s-IWL (20R9) and Lenovo IdeaPad S145-15API (81UT)
81 % - Design
75 % - Display
72 % - Performance
78 % - Connectivity
75 % - Battery
69 % - Design
63 % - Display
65 % - Performance
72 % - Connectivity
65 % - Battery

Laptop Specifications Comparison

Lenovo ThinkBook 13s-IWL (20R9) vs. Lenovo IdeaPad S145-15API (81UT) Comparison Chart
DESIGN AND DIMENSIONS Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Product Type Notebook Notebook
Dimensions (WxDxH) 30.76 cm x 21.64 cm x 1.59 cm 36.22 cm x 25.15 cm x 1.99 cm
Weight 1.32 kg 1.85 kg
Case Material Aluminum Polycarbonate ABS
Colour Mineral grey Granite black IMR
DISPLAY Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Screen Size (Type) 13.3" - IPS 15.6" - TN
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 1920 x 1080 (Full HD) 1366 x 768 (HD)
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:9
Image Brightness 300 cd/m² 220 cd/m²
Features Anti-glare, 170° viewing angle Anti-glare
PROCESSOR Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
CPU Intel Core i5 (8th Gen) 8265U / 1.6 GHz AMD Ryzen 3 3200U / 2.6 GHz
Max Turbo Speed 3.9 GHz 3.5 GHz
Number of Cores Quad-Core Dual-Core
Cache 6 MB L3 - 4 MB
64-bit Computing Yes Yes
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
RAM 8 GB (1 x 8 GB) 4 GB (provided memory is soldered)
Max RAM Supported 16 GB 12 GB
RAM Type DDR4 SDRAM DDR4 SDRAM
Speed 2400 MHz 2400 MHz
Rated Speed 2400 MHz 2400 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 260-pin
Slots Qty 1 1
Empty Slots 0 1
STORAGE Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Main Storage Size (HDD/SSD) 256 GB SSD M.2 2242 PCIe - NVM Express (NVMe) 128 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Graphics Processor (GPU) Intel UHD Graphics AMD Radeon Vega 3
Camera Yes - 720p Yes
Resolution - 0.3 Megapixel
Camera Features ThinkShutter camera privacy -
Sound Stereo speakers, dual array microphone Stereo speakers, microphone
Codec Realtek ALC3287 -
Compliant Standards High Definition Audio, Dolby Audio X3 High Definition Audio, Dolby Audio
COMMUNICATIONS Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Wireless 802.11a/b/g/n/ac, Bluetooth 5.0 802.11a/b/g/n/ac, Bluetooth 4.2
Wireless Controller M.2 Card M.2 Card
Features - Single stream (1x1)
BATTERY Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Technology Lithium Ion Lithium Ion
Battery Capacity (Size) 45 Wh 30 Wh
Battery Life Up to 11 hours Up to 4 hours
AC ADAPTER Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Input AC 120/230 V (50/60 Hz) AC 120/230 V (50/60 Hz)
Output 65 Watt 65 Watt
INPUT Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Type Keyboard, touchpad Keyboard, touchpad
Numeric Keypad - Yes
Features Multi-touch touchpad, buttonless touchpad Multi-touch touchpad, buttonless touchpad
CONNECTIONS & EXPANSIONS Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Interfaces USB 3.1 Gen 1
USB 3.1 Gen 1 (Always On)
USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode)
HDMI
Headphone/microphone combo jack
USB 2.0
2 x USB 3.1 Gen 1
HDMI
Headphone/microphone combo jack
Memory Card Reader - 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card)
SOFTWARE Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Operating System (OS) Windows 10 Pro 64-bit Edition - German Windows 10 Home in S mode - English
Software Included Microsoft Office (Trial) Microsoft Office (30 days trial)
MISCELLANEOUS Lenovo ThinkBook 13s-IWL (20R9) Lenovo IdeaPad S145-15API (81UT)
Included Accessories Power adapter Power adapter
Security Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader Firmware Trusted Platform Module (TPM 2.0) Security Chip
Features Administrator password, hard drive password, power-on password, RapidCharge Administrator password, hard drive password, power-on password
Compliant Standards RoHS, FIDO Certified RoHS, Energy-Related Products (ErP) Lot 3
Manufacturer Warranty Limited warranty - 1 year - pick-up and return Limited warranty - 1 year - pick-up and return
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