In depth comparison and review of Lenovo ThinkBook 14-IIL (20SL) and Lenovo ThinkBook 15-IIL (20SM). 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 ThinkBook 14-IIL (20SL) based on its technical characteristics, features, user experience, expert reviews and price level.
solid build quality
responsive keyboard
affordable price
adequate performance
decent battery life
average display quality
limited graphics power
no thunderbolt support
modest storage capacity
Advantages and disadvantages of Lenovo ThinkBook 15-IIL (20SM) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price point
solid build quality
decent battery life
good processor performance
adequate storage options
average display quality
limited graphics capability
no thunderbolt support
heavier design
| DESIGN AND DIMENSIONS | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 32.6 cm x 23 cm x 1.79 cm | 36.4 cm x 24.5 cm x 1.89 cm |
| Weight | 1.5 kg | 1.8 kg |
| Case Material | Aluminum | Aluminum, polycarbonate ABS |
| Colour | Mineral grey | Mineral grey |
| DISPLAY | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Screen Size (Type) | 14" - IPS | 15.6" - 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 | 250 cd/m² |
| Features | Anti-glare | Anti-glare |
| PROCESSOR | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| CPU | Intel Core i5 (10th Gen) 1035G4 / 1.1 GHz | Intel Core i5 (10th Gen) 1035G1 / 1 GHz |
|---|---|---|
| Max Turbo Speed | 3.7 GHz | 3.6 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | 6 MB |
| 64-bit Computing | Yes | Yes |
| Features | Integrated memory controller | Integrated memory controller |
| MEMORY | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| RAM | 8 GB (1 x 8 GB) | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | 16 GB | 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 | SO-DIMM 260-pin |
| Slots Qty | 1 | 1 |
| Empty Slots | 0 | 0 |
| STORAGE | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Graphics Processor (GPU) | Intel Iris Plus Graphics | Intel UHD Graphics |
|---|---|---|
| Camera | Yes - 720p | Yes - 720p |
| Camera Features | ThinkShutter camera privacy | ThinkShutter camera privacy |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3287 | Realtek ALC3287 |
| Compliant Standards | High Definition Audio, Dolby Audio | High Definition Audio, Dolby Audio |
| COMMUNICATIONS | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | Bluetooth 5.0, 802.11a/b/g/n/ac/ax |
|---|---|---|
| Wireless Controller | M.2 Card | M.2 Card |
| Network Interface | Gigabit Ethernet | Gigabit Ethernet |
| Features | - | Dual stream (2x2) |
| BATTERY | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Technology | Lithium Ion | Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 45 Wh | 45 Wh |
| Battery Life | Up to 9 hours | Up to 9 hours |
| AC ADAPTER | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt | 65 Watt |
| INPUT | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Interfaces | USB 2.0 (hidden) USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 USB-C 3.1 Gen 1 USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack |
USB 2.0 USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 USB-C 3.1 Gen 1 USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack |
|---|---|---|
| Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) |
| SOFTWARE | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition - Spanish | Windows 10 Pro 64-bit Edition - French |
|---|---|---|
| Software Included | Microsoft Office (30 days trial) | Microsoft Office (30 days trial) |
| MISCELLANEOUS | Lenovo ThinkBook 14-IIL (20SL) | Lenovo ThinkBook 15-IIL (20SM) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | 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 | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, Energy-Related Products (ErP) Lot 3 |
| Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | Limited warranty - 1 year - pick-up and return |
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