Product comparison · 2 laptops

Acer Aspire One 521- 12Dki vs Acer Aspire One 721-122rr

Key differences

Product colour
- Aspire One 521- 12Dki:Black
- Aspire One 721-122rr:Red
Display diagonal
- Aspire One 521- 12Dki:25.6 cm (10.1")
- Aspire One 721-122rr:29.5 cm (11.6")
Display resolution
- Aspire One 521- 12Dki:1024 x 600 pixels
- Aspire One 721-122rr:1366 x 768 pixels
Native aspect ratio
- Aspire One 521- 12Dki:5:3
- Aspire One 721-122rr:16:9
Internal memory
- Aspire One 521- 12Dki:1 GB
- Aspire One 721-122rr:2 GB
Internal memory type
- Aspire One 521- 12Dki:DDR3-SDRAM
- Aspire One 721-122rr:DDR2-SDRAM
Memory slots
- Aspire One 521- 12Dki:1x SO-DIMM
- Aspire One 721-122rr:2x SO-DIMM
Maximum internal memory
- Aspire One 521- 12Dki:2 GB
- Aspire One 721-122rr:4 GB

Differences highlightedShow differences only

Comparison of Aspire One 521- 12Dki, Aspire One 721-122rr
59 specifications	A Acer Aspire One 521- 12Dki View product	B Acer Aspire One 721-122rr View product
Design1 differ
Product colourDiffers	Black	Red
Display3 differ
Display diagonalDiffers	25.6 cm (10.1")	29.5 cm (11.6")
Display resolutionDiffers	1024 x 600 pixels	1366 x 768 pixels
Native aspect ratioDiffers	5:3	16:9
Memory4 differ
Internal memoryDiffers	1 GB	2 GB
Internal memory typeDiffers	DDR3-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Known for one	1 x 1 GB	Unknown — not stated by the source
Memory slotsDiffers	1x SO-DIMM	2x SO-DIMM
Maximum internal memoryDiffers	2 GB	4 GB
Storage1 differ
Total storage capacityDiffers	250 GB	320 GB
Audioidentical
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Cameraidentical
Front cameraKnown for one	No	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows 7 Starter	Windows 7 Home Premium
Battery1 differ
Battery life (max)Differs	6 h	5.5 h
Poweridentical
AC adapter powerKnown for one	Unknown — not stated by the source	30 W
Securityidentical
BIOS passwordKnown for one	Unknown — not stated by the source	Yes
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions5 differ
WeightDiffers	1.25 kg	1.4 kg
WidthDiffers	259 mm	285 mm
DepthDiffers	189.7 mm	204 mm
Height (front)Differs	2.32 cm	2.57 cm
Height (rear)Differs	2.83 cm	2.8 cm

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.