Acer Extensa 15 (EX215-51) vs. Lenovo ThinkPad X1 Carbon Gen 11 (21HN)

Laptop Comparison, Reviews and Tests

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.

Acer Extensa 15 (EX215-51) Review

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

Lenovo ThinkPad X1 Carbon Gen 11 (21HN) Review

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

Laptop Comparison and Tests

Difference between Acer Extensa 15 (EX215-51) and Lenovo ThinkPad X1 Carbon Gen 11 (21HN)
72 % - Design
63 % - Display
65 % - Performance
73 % - Connectivity
74 % - Battery
81 % - Design
85 % - Display
90 % - Performance
85 % - Connectivity
85 % - Battery

Laptop Specifications Comparison

Acer Extensa 15 (EX215-51) vs. Lenovo ThinkPad X1 Carbon Gen 11 (21HN) Comparison Chart
DESIGN AND DIMENSIONS Acer Extensa 15 (EX215-51) Lenovo ThinkPad X1 Carbon Gen 11 (21HN)
Product Type Notebook Notebook - 180-degree hinge design
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)
Screen Size (Type) 15.6" 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 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)
CPU Intel Core i3 (10th Gen) 10110U / 2.1 GHz Intel Core i7 (13th Gen) 1365U / 1.8 GHz
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)
RAM 4 GB (4 GB (soldered)) 16 GB (provided memory is soldered)
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)
Main Storage Size (HDD/SSD) 128 GB SSD - Kingston 512 GB SSD M.2 2280 PCIe 4.0 x4 - TCG Opal Encryption - Kioxia
AUDIO & VIDEO Acer Extensa 15 (EX215-51) Lenovo ThinkPad X1 Carbon Gen 11 (21HN)
Graphics Processor (GPU) Intel UHD Graphics Intel Iris Xe Graphics
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)
Wireless Bluetooth, 802.11a/b/g/n/ac Bluetooth 5.1, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
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)
Technology Lithium Ion 4-cell lithium polymer
Battery Capacity (Size) 48 Wh 57 Wh
AC ADAPTER Acer Extensa 15 (EX215-51) Lenovo ThinkPad X1 Carbon Gen 11 (21HN)
Input AC 120/230 V (50/60 Hz) AC 100-240 V (50/60 Hz)
Output 45 Watt, 19 V 65 Watt
INPUT Acer Extensa 15 (EX215-51) Lenovo ThinkPad X1 Carbon Gen 11 (21HN)
Type Keyboard, touchpad Keyboard, TrackPoint, UltraNav
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)
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
SOFTWARE Acer Extensa 15 (EX215-51) Lenovo ThinkPad X1 Carbon Gen 11 (21HN)
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
MISCELLANEOUS Acer Extensa 15 (EX215-51) Lenovo ThinkPad X1 Carbon Gen 11 (21HN)
Included Accessories Power adapter, HDD kit USB-C power adapter
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 -
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