Side by side comparison and review of HP EliteBook 840 G4 and Acer Extensa 15 (EX215-51). 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 HP EliteBook 840 G4 based on its technical characteristics, features, user experience, expert reviews and price level.
robust security features
solid build quality
comfortable keyboard
good battery life
decent performance
average display quality
no touchscreen option
limited graphics power
heavier design
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
DESIGN AND DIMENSIONS | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 33.8 cm x 23.7 cm x 1.89 cm | 36.34 cm x 25.05 cm x 1.99 cm |
Weight | 1.48 kg | 1.9 kg |
Case Material | Aluminum, magnesium alloy | - |
Colour | - | Shale black |
DISPLAY | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Screen Size (Type) | 14" - IPS | 15.6" |
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LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 1366 x 768 (HD) | 1920 x 1080 (Full HD) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | 300 cd/m² | 220 cd/m² |
Features | Slim Design, Full HD ultra wide-viewing angle (UWVA) eDP anti-glare | Anti-glare, ComfyView, 8 ms response rate, Narrow Border Display |
PROCESSOR | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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CPU | Intel Core i5 (7th Gen) 7200U / 2.5 GHz | Intel Core i3 (10th Gen) 10110U / 2.1 GHz |
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Max Turbo Speed | 3.1 GHz | 4.1 GHz |
Number of Cores | Dual-Core | Dual-Core |
Cache | 3 MB | 4 MB |
64-bit Computing | Yes | Yes |
Features | Intel Turbo Boost Technology 2.0 | Intel Turbo Boost Technology 2.0 |
MEMORY | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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RAM | 8 GB | 4 GB (4 GB (soldered)) |
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Max RAM Supported | 32 GB | 12 GB |
RAM Type | DDR4 SDRAM | DDR4 SDRAM |
Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
Slots Qty | 2 | 1 |
Empty Slots | - | 1 |
STORAGE | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Main Storage Size (HDD/SSD) | 256 GB SSD | 128 GB SSD - Kingston |
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AUDIO & VIDEO | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Graphics Processor (GPU) | Intel HD Graphics 620 | Intel UHD Graphics |
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Memory Allocation Technology | - | Shared Video Memory (UMA) |
Camera | Yes - 720p | Yes - HD |
Sound | Stereo speakers, two microphones | Stereo speakers, two microphones |
Audio Features | Noise-cancellation technology, Bang & Olufsen Audio, HP Audio Boost | - |
COMMUNICATIONS | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | Bluetooth, 802.11a/b/g/n/ac |
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Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Features | - | Wake-on-LAN (WOL) |
BATTERY | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Technology | Lithium polymer | Lithium Ion |
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Battery Capacity (Size) | - | 48 Wh |
AC ADAPTER | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | - | 45 Watt, 19 V |
INPUT | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Type | Keyboard, touchpad, pointing stick | Keyboard, touchpad |
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Numeric Keypad | - | Yes |
Keyboard Backlight | Yes | - |
Features | Touchpad with gesture support | Multi-gesture touch pad, Acer FineTip keyboard, precision touchpad |
CONNECTIONS & EXPANSIONS | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Slots | 1 x SIM card (1 free) | - |
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Interfaces | USB 3.1 Gen 1 USB 3.1 Gen 1 (charging) USB-C DisplayPort VGA LAN Dock Headphone/microphone combo jack |
HDMI USB 3.1 Gen 1 2 x USB 2.0 LAN Headphone/microphone combo jack |
Memory Card Reader | Yes (SD Card, SDHC Card, SDXC Card) | - |
SOFTWARE | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Operating System (OS) | Windows 10 Home 64-bit Edition (Microsoft Authorized Refurbisher (MAR)) | Windows 10 Home 64-bit Edition in S mode |
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MISCELLANEOUS | HP EliteBook 840 G4 | Acer Extensa 15 (EX215-51) |
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Dockable | Yes | - |
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Included Accessories | Power adapter | Power adapter, HDD kit |
Security | Trusted Platform Module (TPM 2.0) Security Chip | - |
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 | HP 3D DriveGuard, Automatic DriveLock, HP DriveLock, Power On Authentication, Pre-boot Authentication, HP Sure Start Gen 3, Master Boot Record Security | MU-MIMO technology |
Compliant Standards | ISO 9001, ISO 14001, ISO 27001 | - |
ENERGY STAR Certified | Yes | - |
Max Operating Temperature | 35 °C | - |
Min Operating Temperature | 0 °C | - |
Humidity Range Operating | 10 - 90% (non-condensing) | - |
Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | Limited warranty - 1 year - carry-in International travellers warranty - 1 year |
Model Number | - | 39SK |