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Product comparison · 2 laptops

Dell Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop vs Dell Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop

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  • 154specifications compared
  • 12differ
  • 142identical
  • 51known for one product only

Key differences

  • Product colour
    • Black
    • Graphite, Silver
  • Display diagonal
    • 43.9 cm (17.3")
    • 39.6 cm (15.6")
  • Display resolution
    • 1600 x 900 pixels
    • 1366 x 768 pixels
  • HD type
    • HD+
    • HD
  • Maximum internal memory
    • 8 GB
    • 16 GB
  • Maximum internal memory (64-bit)
    • 8 GB
    • 16 GB
  • Optical drive type
    • DVD±RW
    • DVD Super Multi DL
  • Audio system
    • Waves MaxxAudio 4
    • MaxxAudio 4

Side by side

Differences highlightedShow differences only
205 specifications
A

Dell

Inspiron 3721 Intel® Core™ i7 i7-3517U Laptop

Model 3721

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B

Dell

Inspiron 5521 Intel® Core™ i7 i7-3517U Laptop

Model 5521

View product
Design1 differ
Product colourDiffersBlackGraphite, Silver
Display3 differ
Display diagonalDiffers43.9 cm (17.3")39.6 cm (15.6")
Display resolutionDiffers1600 x 900 pixels1366 x 768 pixels
HD typeDiffersHD+HD
Display surfaceKnown for oneGloss
Display brightnessKnown for one200 cd/m²
Contrast ratio (typical)Known for one300:1
Memory2 differ
Memory form factorKnown for oneSO-DIMM
Maximum internal memoryDiffers8 GB16 GB
Maximum internal memory (64-bit)Differs8 GB16 GB
Storage1 differ
HDD sizeKnown for one2.5"
Optical drive typeDiffersDVD±RWDVD Super Multi DL
Audio1 differ
Audio systemDiffersWaves MaxxAudio 4MaxxAudio 4
Speakers manufacturerKnown for oneWaves
Speaker powerKnown for one2 W
Cameraidentical
Front camera resolutionKnown for one1280 x 720 pixels
Optical driveidentical
Disc types supportedKnown for oneCD, DVD
Network1 differ
Data networkKnown for oneNot supported
Networking standardsDiffersIEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.3, IEEE 802.3uIEEE 802.11b, IEEE 802.11g, IEEE 802.11n
4G WiMAXKnown for oneNo
Bluetooth Low Energy (BLE)Known for oneYes
Cabling technologyKnown for one10/100Base-T(X)
Built-in Wi-Fi switchKnown for oneYes
Ports & interfacesidentical
VGA (D-Sub) ports quantityKnown for one0
eSATA/USB 2.0 ports quantityKnown for one0
eSATA/USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
eSATA ports quantityKnown for one0
Firewire (IEEE 1394) portsKnown for one0
Keyboardidentical
Full-size keyboardKnown for oneYes
Island-style keyboardKnown for oneYes
Softwareidentical
Drivers includedKnown for oneYes
Processor special featuresidentical
Intel Smart Connect TechnologyKnown for oneNo
Intel® Active Management Technology (Intel® AMT)Known for oneNo
Intel® High Definition Audio (Intel® HD Audio)Known for oneNo
Intel® Matrix Storage Technology (Intel® MST)Known for oneNo
Intel® Rapid Start TechnologyKnown for oneNo
Intel® Virtualization Technology (Intel® VT)Known for oneVT-d, VT-x
Batteryidentical
Battery capacityKnown for one65 Wh
Battery voltageKnown for one11.1 V
Poweridentical
AC adapter frequencyKnown for one50 - 60 Hz
AC adapter input voltageKnown for one100 - 240 V
AC adapter output voltageKnown for one19.5 V
Securityidentical
Password protectionKnown for oneYes
Cable lock slot typeKnown for oneKensington
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 40 °C
Storage temperature (T-T)Known for one-40 - 70 °C
Operating relative humidity (H-H)Known for one10 - 90%
Storage relative humidity (H-H)Known for one10 - 95%
Operating altitudeKnown for one-15.2 - 3048 m
Non-operating altitudeKnown for one-15.2 - 10668 m
Operating shockKnown for one110 G
Non-operating shockKnown for one160 G
Operating vibrationKnown for one0.66 G
Non-operating vibrationKnown for one1.3 G
Weight & dimensions3 differ
WeightDiffers2.74 kg2.65 kg
WidthDiffers412 mm376 mm
DepthDiffers270 mm259 mm
HeightKnown for one27.9 mm
Height (front)Known for one2.83 cm
Height (rear)Known for one3.56 cm
Packaging contentidentical
Power cord includedKnown for oneYes
Quick start guideKnown for oneYes
Other featuresidentical
Intel segment taggingKnown for oneHome office

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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