Side by side comparison and review of Dell Inspiron 15 3511 and Lenovo ThinkPad L440. 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 Dell Inspiron 15 3511 based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
lightweight design
decent battery life
solid build quality
intuitive touchpad
average display quality
modest processor speed
limited graphics performance
fewer USB-C ports
Advantages and disadvantages of Lenovo ThinkPad L440 based on its technical characteristics, features, user experience, expert reviews and price level.
durable build quality
efficient keyboard layout
good battery life
solid security features
affordable price point
heavier design
average display quality
limited graphics performance
older model limitations
| DESIGN AND DIMENSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.85 cm x 23.556 cm x 1.89 cm | 34.4 cm x 23.9 cm x 3.425 cm |
| Weight | 1.73 kg | 2.25 kg |
| Case Material | - | Polycarbonate ABS |
| Colour | Carbon black | - |
| DISPLAY | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Screen Size (Type) | 15.6" | 14" |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1366 x 768 (HD) |
| Pixel Density (ppi) | 141 | - |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 220 cd/m² | - |
| Colour Gamut | 45% NTSC | - |
| Features | Anti-glare, Wide Viewing Angle, ±80° horizontal viewing angle, ±80° vertical viewing angle, Narrow Border Display, 35 ms response rate, 0.179 mm pixel pitch | Anti-glare |
| PROCESSOR | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| CPU | Intel Core i3 (11th Gen) 1115G4 / 3 GHz | Intel Core i5 (4th Gen) 4200U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | 2.6 GHz |
| Number of Cores | Dual-Core | Dual-Core |
| Cache | 6 MB | 3 MB |
| 64-bit Computing | - | Yes |
| Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 |
| MEMORY | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| RAM | 4 GB (1 x 4 GB) | 4 GB |
|---|---|---|
| Max RAM Supported | 16 GB | 16 GB |
| RAM Type | DDR4 SDRAM | DDR3 SDRAM |
| Speed | 2666 MHz | - |
| Rated Speed | 2666 MHz | - |
| Form Factor | SO-DIMM 260-pin | SO-DIMM 204-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 1 | - |
| STORAGE | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) | 120 GB SSD |
|---|
| AUDIO & VIDEO | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel HD Graphics 4400 |
|---|---|---|
| Camera | Yes - HD | Yes |
| Resolution | 0.92 Megapixel | - |
| Camera Features | 78.6 degrees, RGB camera | Face tracking |
| Image Sensor Type | CMOS | - |
| Video Resolutions | 1280 x 720 | - |
| Frame Rate | 30 frames per second | - |
| Sound | Stereo speakers, microphone | Stereo speakers, stereo microphone |
| Codec | - | Realtek ALC3232 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Advanced Audio v2 |
| COMMUNICATIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Wireless | Bluetooth, 802.11a/b/g/n/ac | Bluetooth 4.0, Wi-Fi |
|---|---|---|
| Wireless Controller | M.2 2230 | - |
| Network Interface | - | Gigabit Ethernet |
| WWAN |
|---|
| Generation | - | 3G/4G upgradable |
|---|
| BATTERY | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Technology | 3-cell lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 41 Wh | - |
| AC ADAPTER | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19.5 V, 3.34 A | - |
| INPUT | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad, TrackPoint |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | - | Spill-resistant, multi-touch touchpad |
| CONNECTIONS & EXPANSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Interfaces | HDMI USB 2.0 2 x USB 3.2 Gen 1 Headphone/microphone combo jack |
USB 3.0 3 x USB 2.0 VGA Mini DisplayPort LAN Headphone/microphone combo jack Dock |
|---|---|---|
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition in S mode | Windows 10 Home |
|---|---|---|
| Software Included | Microsoft Office (30 days trial, excludes office licence) | - |
| MISCELLANEOUS | Dell Inspiron 15 3511 | Lenovo ThinkPad L440 |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Security | - | Trusted Platform Module (TPM 1.2) Security Chip |
| Security Slot Type | - | Kensington security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Compliant Standards | - | ISO 9001, ISO 14001, RoHS, ISO 27001 |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| Max Operating Temperature | 40 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
| Manufacturer Warranty | - | Limited warranty - 2 years - pick-up and return |
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