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Product comparison · 2 tablets

Acer Iconia B1-721-83121G01nkr vs Acer Iconia W4-821P

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  • 39specifications compared
  • 21differ
  • 18identical
  • 70known for one product only

Key differences

  • Display diagonal
    • 17.8 cm (7")
    • 20.3 cm (8")
  • Display resolution
    • 1024 x 600 pixels
    • 1280 x 768 pixels
  • Native aspect ratio
    • 128:75
    • 16:10
  • Processor family
    • Mediatek
    • Intel Atom®
  • Processor model
    • MT8312
    • Z3740
  • Processor cores
    • 2
    • 4
  • Processor frequency
    • 1.3 GHz
    • 1.33 GHz
  • Internal memory
    • 1 GB
    • 2 GB

Side by side

Differences highlightedShow differences only
109 specifications
A

Acer

Iconia B1-721-83121G01nkr

Model B1-721-83121G01nkr

View product
B

Acer

Iconia W4-821P

Model W4-821P

View product
Display3 differ
Display diagonalDiffers17.8 cm (7")20.3 cm (8")
Display resolutionDiffers1024 x 600 pixels1280 x 768 pixels
Display technologyLCDLCD
LED backlightYesYes
Native aspect ratioDiffers128:7516:10
Touch technologyKnown for oneMulti-touch
Processor4 differ
Processor manufacturerKnown for oneIntel
Processor familyDiffersMediatekIntel Atom®
Processor modelDiffersMT8312Z3740
Processor coresDiffers24
Processor threadsKnown for one4
Processor boost frequencyKnown for one1.86 GHz
Processor frequencyDiffers1.3 GHz1.33 GHz
Processor cacheKnown for one2 MB
Processor cache typeKnown for oneL2
Conflict-Free processorKnown for oneYes
Graphics & IMC lithographyKnown for one22 nm
Processor codeKnown for oneSR1M5
Processor codenameKnown for oneBay Trail
Processor lithographyKnown for one22 nm
Processor operating modesKnown for one32-bit, 64-bit
Processor package sizeKnown for one17 x 17 mm
Processor seriesKnown for oneIntel Atom Z3700 Series
Scenario Design Power (SDP)Known for one2 W
SteppingKnown for oneB2
Thermal Design Power (TDP)Known for one2 W
TjunctionKnown for one90 °C
Memory2 differ
Internal memoryDiffers1 GB2 GB
Internal memory typeDiffersDDR3L-SDRAMDDR3-SDRAM
Maximum internal memoryKnown for one2 GB
Storage3 differ
Internal storage capacityDiffers16 GB64 GB
Storage mediaDiffersFlashSSD
Card reader integratedYesYes
Compatible memory cardsDiffersMicroSD (TransFlash), MicroSDHCMicroSD (TransFlash)
Maximum memory card sizeKnown for one32 GB
Graphicsidentical
Graphics card familyKnown for oneIntel
Graphics cardKnown for oneHD Graphics
Audioidentical
Built-in speaker(s)YesYes
Built-in microphoneYesYes
Cameraidentical
Rear camera typeKnown for oneSingle camera
Rear cameraKnown for oneYes
Front cameraYesYes
Front camera resolution (numeric)Known for one0.3 MP
Network2 differ
Mobile network connectionYesYes
Mobile network generation3G3G
BluetoothDiffersYesNo
Top Wi-Fi standardDiffers802.11bWi-Fi 4 (802.11n)
Wi-Fi standards802.11b, 802.11g, Wi-Fi 4 (802.11n)802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LANKnown for oneNo
3G standardsKnown for oneHSPA+, WCDMA
Bluetooth versionKnown for one4.0
WWANKnown for oneInstalled
Ports & interfacesidentical
USB 2.0 ports quantity00
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one0
HDMI ports quantity00
Ethernet LAN (RJ-45) portsKnown for one0
Microphone inKnown for oneYes
SmartCard slotKnown for oneNo
Headphone outYesYes
Combo headphone/mic portKnown for oneYes
DC-in jackKnown for oneYes
Micro-USB 2.0 ports quantityKnown for one1
Headphone connectivityKnown for one3.5 mm
Design1 differ
Form factorSlateSlate
Product colourDiffersBlack, RedSilver
Device typeMobile tabletMobile tablet
Performance1 differ
Position locationDiffersYesNo
GPS (satellite)Known for oneNo
Securityidentical
Fingerprint readerNoNo
Software1 differ
PlatformDiffersAndroidWindows
Operating system installedKnown for oneWindows 8.1 Pro
Operating system architectureKnown for one32-bit
Operating system versionKnown for one8.1 Pro
Processor special featuresidentical
Embedded options availableKnown for oneNo
Enhanced Intel SpeedStep TechnologyKnown for oneNo
Intel 64Known for oneYes
Intel Identity Protection Technology versionKnown for one1.00
Intel Secure Key Technology versionKnown for one1.00
Intel Virtualization Technology (VT-x)Known for oneYes
Intel® AES New Instructions (Intel® AES-NI)Known for oneYes
Intel® Anti-Theft Technology (Intel® AT)Known for oneYes
Intel® Clear Video HD Technology (Intel® CVT HD)Known for oneYes
Intel® Identity Protection Technology (Intel® IPT)Known for oneYes
Intel® Insider™Known for oneYes
Intel® Quick Sync Video TechnologyKnown for oneYes
Intel® Secure KeyKnown for oneYes
Intel® Turbo Boost TechnologyKnown for oneNo
Intel® Wireless Display (Intel® WiDi)Known for oneYes
Batteryidentical
Battery technologyLithium Polymer (LiPo)Lithium Polymer (LiPo)
Battery capacityKnown for one2955 mAh
Number of battery cellsKnown for one1
Continuous video playback time (max)Known for one5 h
Weight & dimensions4 differ
WidthDiffers122 mm219 mm
DepthDiffers199 mm10.8 mm
HeightDiffers11.4 mm135 mm
WeightDiffers323 g415 g
Packaging contentidentical
AC adapter includedYesYes
Keyboard includedNoNo
Bag includedKnown for oneNo
Cables includedKnown for oneUSB
Other featuresidentical
Docking connectorKnown for oneNo
Full HDKnown for oneNo
Processor socketKnown for oneBGA 1380
Wi-FiKnown for oneYes
Processor ARK IDKnown for one76759
2G standardsKnown for oneEdge, GPRS, GSM
Sensorsidentical
AccelerometerKnown for oneYes
Poweridentical
AC adapter powerKnown for one7 W
Certificatesidentical
Compliance certificatesKnown for oneRoHS

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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