Side by side comparison and review of Dell Inspiron 15 3511 and Lenovo ThinkPad T14s Gen 1 (20T0). 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 T14s Gen 1 (20T0) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
impressive battery life
good security features
lightweight design
average display brightness
limited graphics performance
no HDMI port
higher price point
| DESIGN AND DIMENSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.85 cm x 23.556 cm x 1.89 cm | 33.88 cm x 22.58 cm x 1.61 cm |
| Weight | 1.73 kg | 1.27 kg |
| Case Material | - | Magnesium alloy, carbon fibre reinforced plastic |
| Colour | Carbon black | Black |
| DISPLAY | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Screen Size (Type) | 15.6" | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full 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 | 400 cd/m² |
| Colour Gamut | 45% NTSC | 72% |
| 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, 170° viewing angle, Low Power |
| PROCESSOR | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| CPU | Intel Core i3 (11th Gen) 1115G4 / 3 GHz | Intel Core i5 (10th Gen) 10210U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | 4.2 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 6 MB | 6 MB |
| 64-bit Computing | - | Yes |
| Features | Intel Turbo Boost Technology 2.0, Intel Smart Cache | Integrated memory controller |
| MEMORY | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| RAM | 4 GB (1 x 4 GB) | 8 GB (provided memory is soldered) |
|---|---|---|
| Max RAM Supported | 16 GB | - |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2666 MHz | 2666 MHz |
| Rated Speed | 2666 MHz | 2666 MHz |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 2 | - |
| Empty Slots | 1 | - |
| STORAGE | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) | 256 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel UHD Graphics |
|---|---|---|
| Camera | Yes - HD | Yes - 720p |
| Resolution | 0.92 Megapixel | - |
| Camera Features | 78.6 degrees, RGB camera | IR camera, ThinkShutter camera privacy |
| Image Sensor Type | CMOS | - |
| Video Resolutions | 1280 x 720 | - |
| Frame Rate | 30 frames per second | - |
| Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
| Codec | - | Realtek ALC3287 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio |
| COMMUNICATIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Wireless | Bluetooth, 802.11a/b/g/n/ac | Bluetooth 5.0, 802.11a/b/g/n/ac/ax |
|---|---|---|
| Wireless Controller | M.2 2230 | Intel Wi-Fi 6 AX 201 |
| Ethernet Controller | - | Intel I219-V |
| Features | - | Gigabit Ethernet via optional Ethernet (RJ-45) adapter, dual stream (2x2) |
| WWAN |
|---|
| Generation | - | 4G |
|---|---|---|
| Technology | - | LTE Advanced |
| Controller | - | FIBOCOM L850-GL - M.2 Card |
| BATTERY | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Technology | 3-cell lithium polymer | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 41 Wh | 57 Wh |
| Battery Life | - | Up to 21 hours |
| AC ADAPTER | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Input | AC 100-240 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 19.5 V, 3.34 A | 65 Watt |
| INPUT | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | - | Yes |
| Features | - | Spill-resistant, multi-touch touchpad, buttonless touchpad, Fn keys with Unified Communications controls |
| CONNECTIONS & EXPANSIONS | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Slots | - | 1 x Nano-SIM card (1 free) |
|---|---|---|
| Interfaces | HDMI USB 2.0 2 x USB 3.2 Gen 1 Headphone/microphone combo jack |
USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 USB-C 3.1 Gen 1 (supports DisplayPort Alt Mode) (Power Delivery) USB-C 3.1 Gen 2 (supports Thunderbolt 3, DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack Lenovo Ethernet extension connector Dock |
| Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | Yes (microSD) |
| SOFTWARE | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition in S mode | Windows 10 Pro 64-bit Edition - English |
|---|---|---|
| Software Included | Microsoft Office (30 days trial, excludes office licence) | - |
| MISCELLANEOUS | Dell Inspiron 15 3511 | Lenovo ThinkPad T14s Gen 1 (20T0) |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | Power adapter | USB-C power adapter |
| Security | - | Trusted Platform Module (TPM 2.0) Security Chip, smart card 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 |
| Compliant Standards | - | RoHS |
| ENERGY STAR Certified | Yes | Yes |
| EPEAT Compliant | - | EPEAT Gold |
| TCO Certified | - | TCO Certified Notebooks 8 |
| Max Operating Temperature | 40 °C | - |
| Min Operating Temperature | 0 °C | - |
| Humidity Range Operating | 10 - 90% (non-condensing) | - |
| Manufacturer Warranty | - | Limited warranty - 3 years - pick-up and return Limited warranty - battery - 1 year |
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