Side by side comparison and review of Acer Extensa 15 (EX215-51) and Lenovo ThinkPad T490. 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 Acer Extensa 15 (EX215-51) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
decent battery life
adequate performance
lightweight design
average display quality
limited storage capacity
no backlit keyboard
basic graphics capabilities
Advantages and disadvantages of Lenovo ThinkPad T490 based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard comfort
impressive battery life
good security features
reliable performance
average display quality
limited graphics power
noisy under load
heavier than competitors
| DESIGN AND DIMENSIONS | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 36.34 cm x 25.05 cm x 1.99 cm | - |
| Weight | 1.9 kg | - |
| Colour | Shale black | - |
| DISPLAY | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Screen Size (Type) | 15.6" | 14" |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | - |
| Image Brightness | 220 cd/m² | - |
| Features | Anti-glare, ComfyView, 8 ms response rate, Narrow Border Display | - |
| PROCESSOR | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| CPU | Intel Core i3 (10th Gen) 10110U / 2.1 GHz | Intel Core i5 (8th Gen) 8365U / 1.6 GHz |
|---|---|---|
| Max Turbo Speed | 4.1 GHz | 4.1 GHz |
| Number of Cores | Dual-Core | Quad-Core |
| Cache | 4 MB | 6 MB |
| 64-bit Computing | Yes | - |
| Features | Intel Turbo Boost Technology 2.0 | - |
| MEMORY | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| RAM | 4 GB (4 GB (soldered)) | 8 GB |
|---|---|---|
| Max RAM Supported | 12 GB | - |
| RAM Type | DDR4 SDRAM | - |
| Form Factor | SO-DIMM 260-pin | - |
| Slots Qty | 1 | - |
| Empty Slots | 1 | - |
| STORAGE | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Main Storage Size (HDD/SSD) | 128 GB SSD - Kingston | 256 GB SSD |
|---|
| AUDIO & VIDEO | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics | Intel UHD Graphics |
|---|---|---|
| Memory Allocation Technology | Shared Video Memory (UMA) | - |
| Camera | Yes - HD | - |
| Sound | Stereo speakers, two microphones | - |
| COMMUNICATIONS | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Wireless | Bluetooth, 802.11a/b/g/n/ac | - |
|---|---|---|
| Network Interface | Gigabit Ethernet | - |
| Features | Wake-on-LAN (WOL) | - |
| BATTERY | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Technology | Lithium Ion | - |
|---|---|---|
| Battery Capacity (Size) | 48 Wh | - |
| AC ADAPTER | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Input | AC 120/230 V (50/60 Hz) | - |
|---|---|---|
| Output | 45 Watt, 19 V | - |
| INPUT | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | Yes | - |
| Features | Multi-gesture touch pad, Acer FineTip keyboard, precision touchpad | - |
| CONNECTIONS & EXPANSIONS | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Interfaces | HDMI USB 3.1 Gen 1 2 x USB 2.0 LAN Headphone/microphone combo jack |
Dock |
|---|
| SOFTWARE | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Operating System (OS) | Windows 10 Home 64-bit Edition in S mode | Windows 10 Pro |
|---|
| MISCELLANEOUS | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad T490 |
|---|
| Dockable | - | Yes |
|---|---|---|
| Included Accessories | Power adapter, HDD kit | Power adapter |
| Security Slot Type | Kensington security slot | - |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | - |
| Features | MU-MIMO technology | - |
| Compliant Standards | - | ISO 9001, ISO 14001, ISO 27001, GDPR |
| Manufacturer Warranty | Limited warranty - 1 year - carry-in International travellers warranty - 1 year |
- |
| Model Number | 39SK | - |
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