In depth comparison and review of Lenovo ThinkPad T15 Gen 1 (20S6) 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 ThinkPad T15 Gen 1 (20S6) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
good battery life
reliable performance
adequate security features
heavy chassis
average display brightness
limited graphics power
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 ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.58 cm x 24.8 cm x 1.91 cm | 35.8 cm x 22.8 cm x 1.68 cm |
| Weight | 1.81 kg | 1.099 kg |
| Case Material | Glass-fibre, polyphenylene sulfide, polyamide | - |
| Colour | Black | White |
| DISPLAY | Lenovo ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Screen Size (Type) | 15.6" - 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 | - |
| Colour Gamut | 45% | 96% sRGB |
| Features | Anti-glare, 170° viewing angle | - |
| PROCESSOR | Lenovo ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| CPU | Intel Core i5 (10th Gen) 10210U / 1.6 GHz | Intel Core i7 (8th Gen) 8565U / 1.8 GHz |
|---|---|---|
| Max Turbo Speed | 4.2 GHz | 4.6 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | L3 - 8 MB |
| 64-bit Computing | Yes | Yes |
| Features | Integrated memory controller | Intel Turbo Boost Technology 2.0 |
| MEMORY | Lenovo ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| RAM | 8 GB (provided memory is soldered) | 16 GB |
|---|---|---|
| Max RAM Supported | 40 GB | 16 GB |
| RAM Type | DDR4 SDRAM | DDR4 SDRAM |
| Speed | 2666 MHz | 2400 MHz |
| Rated Speed | 3200 MHz | - |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 1 | - |
| STORAGE | Lenovo ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2280 PCIe 3.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 512 GB SSD |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel UHD Graphics |
|---|---|---|
| Camera | Yes - 720p | Yes - HD |
| Camera Features | IR camera, fixed focus, ThinkShutter camera privacy | - |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two microphones |
| Codec | Realtek ALC3287 | - |
| Compliant Standards | Dolby Audio | DTS Headphone:X |
| COMMUNICATIONS | Lenovo ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | 802.11a/b/g/n/ac, Bluetooth 5.0 |
|---|---|---|
| Wireless Controller | Intel Wi-Fi 6 AX 201 | Intel Wireless-AC 9560 |
| Network Interface | Gigabit Ethernet | 10/100 Ethernet |
| Ethernet Controller | Intel I219-V | - |
| Features | Dual stream (2x2) | Miracast, dual stream (2x2) |
| WWAN |
|---|
| Generation | WWAN upgradable | - |
|---|
| BATTERY | Lenovo ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Technology | Lithium polymer | 4-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 57 Wh | 72 Wh |
| Battery Life | Up to 15.26 hours | Up to 21.5 hours |
| AC ADAPTER | Lenovo ThinkPad T15 Gen 1 (20S6) | 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 ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | Yes |
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad | Scrolling, gesture function, precision touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Slots | - | 2 x SSD (1 free) |
|---|---|---|
| Interfaces | 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 LAN Dock |
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) | Yes (microSD) |
| SOFTWARE | Lenovo ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Operating System (OS) | Windows 10 Pro 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 ThinkPad T15 Gen 1 (20S6) | LG gram Ultra-Lightweight LG gram Ultra (Lightweight 15Z990) |
|---|
| Dockable | Yes | - |
|---|---|---|
| Included Accessories | USB-C power adapter | Power adapter |
| Security | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader, smart card reader | Fingerprint reader |
| Security Slot Type | Kensington security slot | Kensington security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested | Dust-resistant, shock-resistant, pressure-resistant, vibration-resistant |
| Compliant Standards | RoHS | MIL-STD 810G |
| ENERGY STAR Certified | Yes | - |
| EPEAT Compliant | EPEAT Gold | - |
| TCO Certified | TCO Certified Notebooks 8 | - |
| Manufacturer Warranty | Limited warranty - 3 years - pick-up and return Limited warranty - battery - 1 year |
Limited warranty - 2 years Limited warranty - battery - 1 year |
| Model Number | - | V.AA78A1 |
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