In depth comparison and review of Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) and LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990). 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 S540-13API (Lenovo IdeaPad S540) based on its technical characteristics, features, user experience, expert reviews and price level.
slim, lightweight design
sharp, vibrant display
fast SSD storage
good battery life
efficient thermal management
limited port selection
no optical drive
average sound quality
higher price point
Advantages and disadvantages of LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) based on its technical characteristics, features, user experience, expert reviews and price level.
exceptionally lightweight design
impressive battery life
crisp full HD display
solid state drive storage
robust build quality
average graphics performance
limited port selection
higher price point
no dedicated GPU
| DESIGN AND DIMENSIONS | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 29.69 cm x 20.86 cm x 1.595 cm | 35.8 cm x 22.8 cm x 1.68 cm |
| Weight | 1.25 kg | 1.099 kg |
| Case Material | Aluminum, glass | - |
| Colour | Light silver | Ice blue | White |
| DISPLAY | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Screen Size (Type) | 13.3" - IPS | 15.6" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 2560 x 1600 (WQXGA) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 300 cd/m² | - |
| Colour Gamut | 100% sRGB, 72% NTSC | 96% sRGB |
| Features | Glossy, 72% NTSC colour gamut | - |
| PROCESSOR | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| CPU | AMD Ryzen 5 3550H / 2.1 GHz | Intel Core i7 (8th Gen) 8565U / 1.8 GHz |
|---|---|---|
| Max Turbo Speed | 3.7 GHz | 4.6 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | L3 - 4 MB | L3 - 8 MB |
| 64-bit Computing | Yes | Yes |
| Features | Integrated memory controller | Intel Turbo Boost Technology 2.0 |
| MEMORY | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| RAM | 8 GB (provided memory is soldered) | 16 GB |
|---|---|---|
| Max RAM Supported | - | 16 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2400 MHz | 2400 MHz |
| Rated Speed | 2400 MHz | - |
| STORAGE | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe - NVM Express (NVMe) | 512 GB SSD |
|---|
| AUDIO & VIDEO | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Graphics Processor (GPU) | AMD Radeon Vega 8 | Intel UHD Graphics |
|---|---|---|
| Camera | Yes - 720p | Yes - HD |
| Resolution | 1 Megapixel | - |
| Camera Features | IR camera, ToF sensor | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two microphones |
| Compliant Standards | High Definition Audio, Dolby Audio | DTS Headphone:X |
| COMMUNICATIONS | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 5.0 | 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Wireless Controller | M.2 Card | Intel Wireless-AC 9560 |
| Network Interface | - | 10/100 Ethernet |
| Features | Dual stream (2x2) | Miracast, dual stream (2x2) |
| BATTERY | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Technology | Lithium Ion | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 56 Wh | 72 Wh |
| Battery Life | Up to 14.7 hours | Up to 21.5 hours |
| AC ADAPTER | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 48 Watt |
| INPUT | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | Yes |
| Features | Multi-touch touchpad, buttonless touchpad | Scrolling, gesture function, precision touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Slots | - | 2 x SSD (1 free) |
|---|---|---|
| Interfaces | USB 3.1 Gen 1 2 x USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) Headphone/microphone combo jack |
HDMI USB-C 3.1 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) 3 x USB 3.1 Headphone output |
| Memory Card Reader | - | Yes (microSD) |
| SOFTWARE | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition - English | Windows 10 Home 64-bit Edition |
|---|---|---|
| Software Included | - | Microsoft Office (30 days trial), LG Easy Guide, LG Control Center, LG Update Center, LG On Screen Display 3, LG Reader Mode |
| MISCELLANEOUS | Lenovo IdeaPad S540-13API (Lenovo IdeaPad S540) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip | 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 | Dust-resistant, shock-resistant, pressure-resistant, vibration-resistant |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | MIL-STD 810G |
| SAR Value | 0.599 W/kg (body), 0.599 W/kg (limb) | - |
| ENERGY STAR Certified | Yes | - |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 2 years Limited warranty - battery - 1 year |
| Model Number | 13API 81XC | V.AA78A1 |
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