In depth comparison and review of Lenovo ThinkPad E15 Gen 4 (21ED) and LG gram 14Z90R. 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 E15 Gen 4 (21ED) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
efficient performance
comfortable keyboard
good security features
affordable price
average display quality
limited graphics power
moderate battery life
noisy under load
Advantages and disadvantages of LG gram 14Z90R based on its technical characteristics, features, user experience, expert reviews and price level.
ultra-lightweight design
long-lasting battery
high-resolution display
robust processing power
fast ssd storage
higher price range
limited gaming performance
no dedicated gpu
fewer ports available
| DESIGN AND DIMENSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.5 cm x 24 cm x 1.89 cm | 21.1 cm x 21.39 cm x 1.68 cm |
| Weight | 1.78 kg | 999 g |
| Case Material | Aluminium (top), polycarbonate ABS (bottom) | Polycarbonate ABS, magnesium alloy |
| Colour | Black | Obsidian black |
| DISPLAY | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Screen Size (Type) | 15.6" - IPS | 14" - IPS |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1200 (WUXGA) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 300 cd/m² | 350 cd/m² |
| Colour Gamut | - | 99% DCI-P3, 95% DCI-P3 |
| Features | Anti-glare, 170° viewing angle | Anti-glare, 60 Hz refresh rate |
| PROCESSOR | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| CPU | AMD Ryzen 5 5625U / 2.3 GHz | Intel Core i7 (13th Gen) 1360P / 2.2 GHz |
|---|---|---|
| Max Turbo Speed | 4.3 GHz | 5 GHz |
| Number of Cores | 6-core | 12-core |
| Cache | L3 - 16 MB | 18 MB |
| Platform Technology | - | Intel Evo |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| RAM | 8 GB (provided memory is soldered) | 16 GB |
|---|---|---|
| Max RAM Supported | 40 GB | - |
| RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
| Speed | 3200 MHz | 6000 MHz |
| Rated Speed | 3200 MHz | - |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 1 | - |
| STORAGE | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 4.0 x4 - TCG Opal Encryption 2, NVM Express (NVMe) | 1 TB SSD M.2 2280 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Graphics Processor (GPU) | AMD Radeon Graphics | Intel Iris Xe Graphics |
|---|---|---|
| Max Monitors Supported | 2 external monitor(s) | - |
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - 1080p | Yes - Full HD |
| Camera Features | Privacy shutter, IR camera, Windows Hello, fixed focus | Face recognition, IR camera |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, two microphones |
| Codec | Realtek ALC3287 | - |
| Compliant Standards | High Definition Audio, Dolby Audio | Dolby Atmos |
| Audio Features | Harman-branded | Output: Smart Amp |
| COMMUNICATIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Wireless | 802.11a/b/g/n/ac/ax, Bluetooth 5.2 | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 |
|---|---|---|
| Wireless Controller | M.2 Card | - |
| Network Interface | Gigabit Ethernet | - |
| Ethernet Controller | Realtek RTL8111H-CG | - |
| Features | Wake-on-LAN (WOL), dual stream (2x2) | Dual stream (2x2) |
| BATTERY | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Technology | Lithium polymer | - |
|---|---|---|
| Battery Capacity (Size) | 57 Wh | 80 Wh |
| Battery Life | Up to 16.5 hours | Up to 28.5 hours |
| AC ADAPTER | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Input | AC 100-240 V (50/60 Hz) | - |
|---|---|---|
| Output | 65 Watt | 65 Watt |
| INPUT | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Touchpad, 101 keys keyboard |
|---|---|---|
| Numeric Keypad | Yes | - |
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls | Precision touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Slots | 2 x M.2 Card (1 free) | 2 x SSD (1 free) |
|---|---|---|
| Interfaces | USB 2.0 USB 3.2 Gen 1 (Always On) USB-C 3.2 Gen 1 (supports DisplayPort 1.2 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
Headphone/microphone combo jack (mini-phone 3.5 mm) 2 x USB 3.2 Gen 2x1 (supports DisplayPort) 2 x USB4 Gen 3x2 (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) HDMI |
| Memory Card Reader | - | Yes (microSD) |
| SOFTWARE | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Operating System (OS) | Windows 11 Pro - English | Windows 11 Home |
|---|---|---|
| Software Included | - | Microsoft 365 (30 days trial), McAfee LiveSafe (30 days trial), LG On Screen Display 3, Alexa, Intel Connectivity Performance Suite, PCmover Professional, LG PC Manuals, LG Update & Recovery, LG Glance by Mirametrix, New Wallpaper, Intel Unison, Dolby Atmos sound, LG Lively Theme, LG Display Extension, LG Security Guard, Sync on Mobile, LG Smart Assistant 2.0 |
| MISCELLANEOUS | Lenovo ThinkPad E15 Gen 4 (21ED) | LG gram 14Z90R |
|---|
| Included Accessories | USB-C power adapter | 65W USB-C power adapter |
|---|---|---|
| Security | Discrete Trusted Platform Module (TPM 2.0) Security Chip, 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, power-on password, MIL-STD-810H tested, self-healing BIOS, NVMe password | LED indicator |
| Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3, TCG Certified, TUV Rheinland Low Blue Light (Software Solution) | MIL-STD 810H |
| ENERGY STAR Certified | Yes | - |
| EPEAT Compliant | EPEAT Gold | - |
| Max Operating Temperature | 35 °C | - |
| Min Operating Temperature | 5 °C | - |
| Humidity Range Operating | 8 - 95% | - |
| Manufacturer Warranty | Base warranty - 1 year - pick-up and return Extended warranty - 1 year - on-site |
Limited warranty - parts and labour - 1 year |
| Model Number | - | K.AA78A1 |
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