Lenovo IdeaPad S540-15IML (81NG) vs. Lenovo IdeaPad S145-15API (81UT)

Laptop Comparison, Reviews and Tests

In depth comparison and review of Lenovo IdeaPad S540-15IML (81NG) 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 IdeaPad S540-15IML (81NG) Review

Advantages and disadvantages of Lenovo IdeaPad S540-15IML (81NG) based on its technical characteristics, features, user experience, expert reviews and price level.

sleek aluminum design

sharp full HD display

fast processing speeds

ample storage capacity

good battery life

heavier than competitors

no optical drive

limited port selection

average graphics performance

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 IdeaPad S540-15IML (81NG) and Lenovo IdeaPad S145-15API (81UT)
82 % - Design
72 % - Display
75 % - Performance
75 % - Connectivity
75 % - Battery
69 % - Design
63 % - Display
65 % - Performance
72 % - Connectivity
65 % - Battery

Laptop Specifications Comparison

Lenovo IdeaPad S540-15IML (81NG) vs. Lenovo IdeaPad S145-15API (81UT) Comparison Chart
DESIGN AND DIMENSIONS Lenovo IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Product Type Notebook Notebook
Dimensions (WxDxH) 35.8 cm x 24.5 cm x 1.69 cm 36.22 cm x 25.15 cm x 1.99 cm
Weight 1.95 kg 1.85 kg
Case Material Aluminum, glass Polycarbonate ABS
Colour Mineral grey Granite black IMR
DISPLAY Lenovo IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Screen Size (Type) 15.6" - 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
Colour Gamut 72% -
Features Glossy, glass cover Anti-glare
PROCESSOR Lenovo IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
CPU Intel Core i5 (10th Gen) 10210U / 1.6 GHz AMD Ryzen 3 3200U / 2.6 GHz
Max Turbo Speed 4.2 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 IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
RAM 8 GB (1 x 4 GB + 4 GB (soldered)) 4 GB (provided memory is soldered)
Max RAM Supported 12 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 IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Main Storage Size (HDD/SSD) 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) 128 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe)
AUDIO & VIDEO Lenovo IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Graphics Processor (GPU) Intel UHD Graphics AMD Radeon Vega 3
Camera Yes - 720p Yes
Resolution 1 Megapixel 0.3 Megapixel
Camera Features Privacy shutter -
Sound Stereo speakers, dual array microphone Stereo speakers, microphone
Compliant Standards High Definition Audio, Dolby Audio High Definition Audio, Dolby Audio
COMMUNICATIONS Lenovo IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.2 802.11a/b/g/n/ac, Bluetooth 4.2
Wireless Controller M.2 Card M.2 Card
Features Dual stream (2x2) Single stream (1x1)
BATTERY Lenovo IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Technology Lithium Ion Lithium Ion
Battery Capacity (Size) 70 Wh 30 Wh
Battery Life Up to 15 hours Up to 4 hours
AC ADAPTER Lenovo IdeaPad S540-15IML (81NG) 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 IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Type Keyboard, touchpad Keyboard, touchpad
Numeric Keypad Yes Yes
Keyboard Backlight Yes -
Features Multi-touch touchpad, buttonless touchpad Multi-touch touchpad, buttonless touchpad
CONNECTIONS & EXPANSIONS Lenovo IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Interfaces USB 3.1 Gen 1
USB 3.1 Gen 1 (Always On)
USB-C 3.1 Gen 1
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) 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card)
SOFTWARE Lenovo IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Operating System (OS) Windows 10 Home 64-bit Edition - English Windows 10 Home in S mode - English
Software Included Microsoft Office (30 days trial) Microsoft Office (30 days trial)
MISCELLANEOUS Lenovo IdeaPad S540-15IML (81NG) Lenovo IdeaPad S145-15API (81UT)
Included Accessories Power adapter Power adapter
Security Firmware 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, Energy-Related Products (ErP) Lot 3 RoHS, Energy-Related Products (ErP) Lot 3
SAR Value 1.81 W/kg (body), 1.81 W/kg (limb) -
Manufacturer Warranty Limited warranty - 1 year - pick-up and return Limited warranty - 1 year - pick-up and return
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