Side by side comparison and review of Lenovo ThinkBook 13s-IWL (20R9) and Lenovo IdeaPad S540-13API (81XC). 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.
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
Advantages and disadvantages of Lenovo IdeaPad S540-13API (81XC) based on its technical characteristics, features, user experience, expert reviews and price level.
slim, lightweight design
sharp, vibrant display
fast processing speed
good battery life
quiet operation
limited port selection
no optical drive
average graphics performance
higher price point
| DESIGN AND DIMENSIONS | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 30.76 cm x 21.64 cm x 1.59 cm | 29.69 cm x 20.86 cm x 1.595 cm |
| Weight | 1.32 kg | 1.25 kg |
| Case Material | Aluminum | Aluminum, glass |
| Colour | Mineral grey | Light silver |
| DISPLAY | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| Screen Size (Type) | 13.3" - IPS | 13.3" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 2560 x 1600 (WQHD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 300 cd/m² | 300 cd/m² |
| Colour Gamut | - | 100% sRGB, 72% NTSC |
| Features | Anti-glare, 170° viewing angle | Glossy, 72% NTSC colour gamut |
| PROCESSOR | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| CPU | Intel Core i5 (8th Gen) 8265U / 1.6 GHz | AMD Ryzen 7 3750H / 2.3 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 4 GHz |
| Number of Cores | Quad-Core | Quad-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 S540-13API (81XC) |
|---|
| RAM | 8 GB (1 x 8 GB) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 16 GB | - |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | 2400 MHz |
| Rated Speed | 2400 MHz | 2400 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe - NVM Express (NVMe) | 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | AMD Radeon RX Vega 10 |
|---|---|---|
| Camera | Yes - 720p | Yes - 720p |
| Resolution | - | 1 Megapixel |
| Camera Features | ThinkShutter camera privacy | IR camera, fixed focus, ToF sensor |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array 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 S540-13API (81XC) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Wireless Controller | M.2 Card | M.2 Card |
| Features | - | Dual stream (2x2) |
| BATTERY | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| Technology | Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 45 Wh | 56 Wh |
| Battery Life | Up to 11 hours | Up to 14.7 hours |
| AC ADAPTER | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| 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 S540-13API (81XC) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Keyboard Backlight | - | Yes |
| Features | Multi-touch touchpad, buttonless touchpad | Multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| 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 3.1 Gen 1 (Always On) 2 x USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) Headphone/microphone combo jack |
|---|
| SOFTWARE | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - German | Windows 10 Home 64-bit Edition - English |
|---|---|---|
| Software Included | Microsoft Office (Trial) | Microsoft Office (30 days trial) |
| MISCELLANEOUS | Lenovo ThinkBook 13s-IWL (20R9) | Lenovo IdeaPad S540-13API (81XC) |
|---|
| 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, RapidCharge |
| Compliant Standards | RoHS, FIDO Certified | RoHS, Energy-Related Products (ErP) Lot 3 |
| SAR Value | - | 0.599 W/kg (body), 0.599 W/kg (limb) |
| Specific Absorption Rate (SAR) | - | 0.599 W/kg (body) 0.599 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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