Lenovo IdeaPad S145-14API (81UV) vs. Lenovo ThinkPad T14s Gen 4 (21F9)

Laptop Comparison, Reviews and Tests

Side by side comparison and review of Lenovo IdeaPad S145-14API (81UV) and Lenovo ThinkPad T14s Gen 4 (21F9). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.

Lenovo IdeaPad S145-14API (81UV) Review

Advantages and disadvantages of Lenovo IdeaPad S145-14API (81UV) based on its technical characteristics, features, user experience, expert reviews and price level.

affordable price

lightweight design

decent processor speed

sufficient connectivity options

quiet operation

average display quality

limited battery life

basic graphics capabilities

no backlit keyboard

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 Lenovo IdeaPad S145-14API (81UV) and Lenovo ThinkPad T14s Gen 4 (21F9)
69 % - Design
65 % - Display
65 % - Performance
72 % - Connectivity
65 % - Battery
86 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

Lenovo IdeaPad S145-14API (81UV) vs. Lenovo ThinkPad T14s Gen 4 (21F9) Comparison Chart
DESIGN AND DIMENSIONS Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Product Type Notebook Notebook - 180-degree hinge design
Dimensions (WxDxH) 32.71 cm x 24.1 cm x 1.99 cm 31.75 cm x 22.69 cm x 1.69 cm
Weight 1.6 kg 1.26 kg
Case Material Polycarbonate ABS Aluminium (bottom), carbon fibre hybrid (top)
Colour Granite black Deep black
DISPLAY Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Screen Size (Type) 14" - TN 14" - IPS
Touchscreen - Yes (10-point multi-touch)
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, on-cell touch technology
PROCESSOR Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
CPU AMD Athlon 300U / 2.4 GHz AMD Ryzen 5 Pro 7540U / 3.2 GHz
Max Turbo Speed 3.3 GHz 4.9 GHz
Number of Cores Dual-Core 6-core
Cache L3 - 4 MB L3 - 16 MB
64-bit Computing Yes -
Features Integrated memory controller Integrated memory controller
MEMORY Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
RAM 4 GB (provided memory is soldered) 16 GB (provided memory is soldered)
Max RAM Supported 12 GB -
RAM Type DDR4 SDRAM LPDDR5X SDRAM
Speed 2400 MHz 6400 MHz
Rated Speed 2400 MHz 7500 MHz
Form Factor SO-DIMM 260-pin -
Slots Qty 1 -
Empty Slots 1 -
STORAGE Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Main Storage Size (HDD/SSD) 128 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) 256 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption - Kioxia
AUDIO & VIDEO Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Graphics Processor (GPU) AMD Radeon Vega 3 AMD Radeon 740M
Max Monitors Supported - 3 external monitor(s)
Camera Yes Yes
Resolution 0.3 Megapixel 5 Megapixel
Camera Features - Privacy shutter, Windows Hello, fixed focus, Discrete IR, Ultrasonic Human Presence Detection
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: Dolby Voice, 360° far-field
COMMUNICATIONS Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Wireless 802.11a/b/g/n/ac, Bluetooth 4.2 Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller M.2 Card Qualcomm NFA725A
Network Interface - Gigabit Ethernet
Features Single stream (1x1) -
BATTERY Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Technology Lithium Ion Lithium polymer
Battery Capacity (Size) 30 Wh 57 Wh
Battery Life Up to 4 hours -
AC ADAPTER Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Input AC 120/230 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 65 Watt 65 Watt
INPUT Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Type Keyboard, touchpad Keyboard, TrackPoint, UltraNav
Keyboard Backlight - Yes
Features Multi-touch touchpad, buttonless touchpad Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls
CONNECTIONS & EXPANSIONS Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Interfaces USB 2.0
2 x USB 3.1 Gen 1
HDMI
Headphone/microphone combo jack
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)
Memory Card Reader 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) -
SOFTWARE Lenovo IdeaPad S145-14API (81UV) Lenovo ThinkPad T14s Gen 4 (21F9)
Operating System (OS) Windows 10 Home in S mode - English Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence
Software Included Microsoft Office (30 days trial) Glance by Mirametrix
MISCELLANEOUS Lenovo IdeaPad S145-14API (81UV) 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 2.0) Security Chip Discrete Trusted Platform Module (TPM 2.0) Security Chip with Microsoft Pluton, 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, 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 3 RoHS, Energy-Related Products (ErP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, 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 -
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