In depth comparison and review of Lenovo IdeaPad S540-15IML (81NG) and Acer Swift X 14 (SFX14). 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.
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
Advantages and disadvantages of Acer Swift X 14 (SFX14) based on its technical characteristics, features, user experience, expert reviews and price level.
powerful amd processor
lightweight and portable
sharp full hd display
solid build quality
efficient thermal management
average battery life
limited port selection
noisy under load
higher price point
| DESIGN AND DIMENSIONS | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.8 cm x 24.5 cm x 1.69 cm | 32.28 cm x 22.812 cm x 1.99 cm |
| Weight | 1.95 kg | 1.5 kg |
| Case Material | Aluminum, glass | Anodised aluminium |
| Colour | Mineral grey | Steel grey |
| DISPLAY | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Screen Size (Type) | 15.6" - IPS | 14.5" OLED |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 2880 x 1800 (WQXGA+) |
| V-Sync Rate at Max Res. | - | 120 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 300 cd/m² | 400 cd/m² |
| Colour Gamut | 72% | 100% DCI-P3 |
| Features | Glossy, glass cover | Glare, CineCrystal, Acer BluelightShield technology, 1 ms response rate, VESA DisplayHDR 500 |
| PROCESSOR | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| CPU | Intel Core i5 (10th Gen) 10210U / 1.6 GHz | Intel Core i7 (13th Gen) 13700H / 2.4 GHz |
|---|---|---|
| Max Turbo Speed | 4.2 GHz | 5 GHz |
| Number of Cores | Quad-Core | 14-core |
| Cache | 6 MB | L3 - 24 MB |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | Intel Smart Cache |
| MEMORY | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| RAM | 8 GB (1 x 4 GB + 4 GB (soldered)) | 16 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 12 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | 2400 MHz | - |
| Rated Speed | 2400 MHz | - |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 0 | - |
| STORAGE | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Main Storage Size (HDD/SSD) | 512 GB SSD M.2 2280 PCIe 3.0 x4 - NVM Express (NVMe) | 512 GB SSD M.2 2280 - Micron |
|---|
| AUDIO & VIDEO | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | NVIDIA GeForce RTX 3050 |
|---|---|---|
| Video Memory | - | 6 GB GDDR6 SDRAM |
| Camera | Yes - 720p | Yes - Full HD |
| Resolution | 1 Megapixel | - |
| Camera Features | Privacy shutter | Temporal Noise Reduction |
| Video Resolutions | - | 1080p |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two microphones |
| Compliant Standards | High Definition Audio, Dolby Audio | - |
| COMMUNICATIONS | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
|---|---|---|
| Wireless Controller | M.2 Card | Killer Wi-Fi 6E AX1675i - M.2 2230 (CNVi) |
| Features | Dual stream (2x2) | Dual stream (2x2) |
| BATTERY | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Technology | Lithium Ion | - |
|---|---|---|
| Battery Capacity (Size) | 70 Wh | 76 Wh |
| Battery Life | Up to 15 hours | - |
| AC ADAPTER | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Input | AC 120/230 V (50/60 Hz) | - |
|---|---|---|
| Output | 65 Watt | 100 Watt, 5 / 9 / 12 / 15 / 20 V |
| INPUT | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | Yes |
| Features | Multi-touch touchpad, buttonless touchpad | Multi-gesture touch pad, precision touchpad, OceanGlass touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) USB-C 3.1 Gen 1 HDMI Headphone/microphone combo jack |
HDMI 2 x USB4 (supports Thunderbolt 4, DisplayPort Alt Mode) (DC-In combo, Power Delivery) USB 3.2 Gen 1 (with power off charging) USB 3.2 Gen 1 Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | Yes (microSD) |
| SOFTWARE | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition - English | Windows 11 Home |
|---|---|---|
| Software Included | Microsoft Office (30 days trial) | NVIDIA Studio drivers |
| MISCELLANEOUS | Lenovo IdeaPad S540-15IML (81NG) | Acer Swift X 14 (SFX14) |
|---|
| Included Accessories | Power adapter | USB-C power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Fingerprint reader |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | Administrator password, hard drive password, power-on password, RapidCharge | Administrator password, system password, Acer Purified.Voice technology |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | TUV Rheinland Eyesafe Display |
| SAR Value | 1.81 W/kg (body), 1.81 W/kg (limb) | 1.14 W/kg (body), 1.14 W/kg (head), 1.14 W/kg (limb) |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 1 year - carry-in International travellers warranty - 1 year |
| Model Number | - | 71G |
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