Side by side comparison and review of Acer Extensa 15 (EX215-51) and Lenovo ThinkPad X1 Carbon Gen 11 (21HN). 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 X1 Carbon Gen 11 (21HN) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight and portable
robust build quality
excellent keyboard feel
impressive battery life
high-resolution display
high price point
limited graphics performance
fewer ports available
average webcam quality
DESIGN AND DIMENSIONS | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Product Type | Notebook | Notebook - 180-degree hinge design |
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Dimensions (WxDxH) | 36.34 cm x 25.05 cm x 1.99 cm | 31.56 cm x 22.25 cm x 1.536 cm |
Weight | 1.9 kg | 1.12 kg |
Case Material | - | Aluminium (bottom), carbon fibre (top) |
Colour | Shale black | Deep black paint |
DISPLAY | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Screen Size (Type) | 15.6" | 14" - IPS |
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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 | 220 cd/m² | 400 cd/m² |
Colour Gamut | - | 100% sRGB |
Features | Anti-glare, ComfyView, 8 ms response rate, Narrow Border Display | Anti-glare, Low Power, Eyesafe technology |
PROCESSOR | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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CPU | Intel Core i3 (10th Gen) 10110U / 2.1 GHz | Intel Core i7 (13th Gen) 1365U / 1.8 GHz |
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Max Turbo Speed | 4.1 GHz | 5.2 GHz |
Number of Cores | Dual-Core | 10-core |
Cache | 4 MB | 12 MB |
64-bit Computing | Yes | - |
Features | Intel Turbo Boost Technology 2.0 | Integrated memory controller |
MEMORY | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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RAM | 4 GB (4 GB (soldered)) | 16 GB (provided memory is soldered) |
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Max RAM Supported | 12 GB | - |
RAM Type | DDR4 SDRAM | LPDDR5 SDRAM |
Speed | - | 6400 MHz |
Rated Speed | - | 6400 MHz |
Form Factor | SO-DIMM 260-pin | - |
Slots Qty | 1 | - |
Empty Slots | 1 | - |
STORAGE | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Main Storage Size (HDD/SSD) | 128 GB SSD - Kingston | 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption - Kioxia |
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AUDIO & VIDEO | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Graphics Processor (GPU) | Intel UHD Graphics | Intel Iris Xe Graphics |
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Memory Allocation Technology | Shared Video Memory (UMA) | - |
Max Monitors Supported | - | 3 external monitor(s) |
Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
Camera | Yes - HD | Yes - 1080p |
Camera Features | - | Privacy shutter, Windows Hello, fixed focus, hybrid FHD/IR camera |
Sound | Stereo speakers, two microphones | Stereo speakers, two tweeters, two woofers, quad array microphone |
Codec | - | Realtek ALC3306 |
Compliant Standards | - | High Definition Audio, Dolby Atmos |
Audio Features | - | Input: Dolby Voice, 360° far-field |
COMMUNICATIONS | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Wireless | Bluetooth, 802.11a/b/g/n/ac | Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) |
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Wireless Controller | - | Intel Wi-Fi 6E AX 211 |
Network Interface | Gigabit Ethernet | - |
Features | Wake-on-LAN (WOL) | - |
BATTERY | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Technology | Lithium Ion | 4-cell lithium polymer |
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Battery Capacity (Size) | 48 Wh | 57 Wh |
AC ADAPTER | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
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Output | 45 Watt, 19 V | 65 Watt |
INPUT | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
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Numeric Keypad | Yes | - |
Keyboard Backlight | - | Yes |
Features | Multi-gesture touch pad, Acer FineTip keyboard, precision touchpad | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls, glass touchpad, air intake key design |
CONNECTIONS & EXPANSIONS | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Interfaces | HDMI USB 3.1 Gen 1 2 x USB 2.0 LAN Headphone/microphone combo jack |
USB 3.2 Gen 1 USB 3.2 Gen 1 (Always On) 2 x USB4 (supports Thunderbolt 4, DisplayPort 1.4a Alt Mode) (Power Delivery 3.0) HDMI (4K support) Headphone/microphone combo jack |
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SOFTWARE | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Operating System (OS) | Windows 10 Home 64-bit Edition in S mode | Windows 10 Pro 64-bit Edition (available through downgrade rights from Windows 11 Pro) + Windows 11 Pro Licence |
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MISCELLANEOUS | Acer Extensa 15 (EX215-51) | Lenovo ThinkPad X1 Carbon Gen 11 (21HN) |
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Included Accessories | Power adapter, HDD kit | USB-C power adapter |
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Security | - | Discrete Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
Security Slot Type | Kensington security slot | Kensington nano security slot |
Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
Features | MU-MIMO technology | Administrator password, system password, power-on password, RapidCharge, MIL-STD-810H tested, NVMe password, certificate based BIOS authentication, FIDO (Fast Identity Online) authentication |
Compliant Standards | - | RoHS, Energy-Related Products (ErP) Lot 6, TCG Certified, Energy-Related Products (ErP) Lot 26, TCO Certified 9.0 |
Max Operating Temperature | - | 35 °C |
Min Operating Temperature | - | 5 °C |
Humidity Range Operating | - | 8 - 95% |
Manufacturer Warranty | Limited warranty - 1 year - carry-in International travellers warranty - 1 year |
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Model Number | 39SK | - |