In depth comparison and review of Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) and Lenovo Yoga S940-14IWL (Lenovo Yoga S940). 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.
| DESIGN AND DIMENSIONS | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.8 cm x 24.5 cm x 1.715 cm | 31.93 cm x 19.74 cm x 1.42 cm |
| Weight | 1.8 kg | 1.2 kg |
| Case Material | Aluminum, polycarbonate ABS | Aluminum |
| Colour | Abyss blue | Iron grey |
| DISPLAY | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Screen Size (Type) | 15.6" - IPS | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 250 cd/m² | 400 cd/m² |
| Colour Gamut | 45% | 72% NTSC |
| Features | Anti-glare | Glossy, One Glass Solution, Dolby Vision |
| PROCESSOR | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| CPU | Intel Core i3 (8th Gen) 8145U / 2.1 GHz | Intel Core i5 (8th Gen) 8265U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 3.9 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 4 MB | 6 MB |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| RAM | 8 GB (1 x 4 GB + 4 GB (soldered)) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 12 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR3 SDRAM |
| Speed | 2400 MHz | 2133 MHz |
| Rated Speed | 2400 MHz | 2400 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel UHD Graphics 620 |
|---|---|---|
| Camera | Yes - 720p | Yes - 720p |
| Resolution | 1 Megapixel | - |
| Camera Features | Privacy shutter | IR camera, fixed focus, ToF sensor |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3286 |
| Compliant Standards | High Definition Audio, Dolby Audio | High Definition Audio, Dolby Atmos |
| COMMUNICATIONS | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Wireless Controller | M.2 Card | M.2 Card |
| Features | Single stream (1x1) | Dual stream (2x2) |
| BATTERY | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Technology | Lithium Ion | Lithium polymer |
|---|---|---|
| Battery Capacity (Size) | 70 Wh | 52 Wh |
| Battery Life | Up to 15 hours | Up to 15 hours |
| AC ADAPTER | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt |
| INPUT | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | Yes |
| Features | Multi-touch touchpad, buttonless touchpad | Multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Interfaces | USB 3.1 Gen 1 USB-C 3.1 Gen 1 HDMI Headphone/microphone combo jack USB 3.1 Gen 1 (Always On) |
2 x USB-C 3.1 Gen 1 (supports Thunderbolt 3) USB-C 3.1 Gen 1 Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | 4 in 1 (MultiMediaCard, microSD, microSDHC, microSDXC) | - |
| SOFTWARE | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition - English | Windows 10 Home 64-bit Edition - English |
|---|---|---|
| Software Included | Microsoft Office (30 days trial) | Microsoft Office (Trial) |
| MISCELLANEOUS | Lenovo IdeaPad S540-15IWL (Lenovo IdeaPad S540) | Lenovo Yoga S940-14IWL (Lenovo Yoga S940) |
|---|
| Included Accessories | Power adapter | USB-C 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 STAR Certified | Yes | Yes |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 1 year - pick-up and return |
| Model Number | 15IWL 81NE | 14IWL 81Q7 |
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