Generally, some of the advantages of the Epson R-D1x compared to ultra compact competitors include: it has a much larger screen (2.5" vs 1.0"), has a much larger sensor (APS-C 23.7x15.6mm vs 1/3.6" 5.3x4.0mm), is newer (february, 2009 vs october, 2003), shoots RAW and has interchangeable lenses.
However, on average it doesn't have a built-in flash, doesn't record movies (none vs 720p @ 30fps), is much larger (standard size 142x89x40 mm vs ultra compact 90x56x15 mm), doesn't have image stabilization (none vs digital) and slightly lower maximum light sensitivity (1,600 ISO vs 3,200 ISO).
Samsung TL105
10 months newer
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Significant advantages of the TL105 (vs the R-D1x)
- Built-in flash
- Much smaller: Ultra compact 90x56x15 mm vs Standard size 142x89x40 mm
- Much higher true resolution: 9.7 MP vs 6 MP
Significant disadvantages of the TL105 (vs the R-D1x)
- Much smaller sensor: 1/2.3" 6.2x4.6mm vs APS-C 23.7x15.6mm
- Built-in lens only
- No RAW support
common strengths of the TL105 and R-D1x
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Sony Cyber-shot DSC-U40
5 years older
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Significant advantages of the DSC-U40 (vs the R-D1x)
- Built-in flash
- Much smaller: Ultra compact 83x39x26 mm vs Standard size 142x89x40 mm
- Much lighter: 130 g vs 620 g
Significant disadvantages of the DSC-U40 (vs the R-D1x)
- Much smaller sensor: 1/3.6" 5.3x4.0mm vs APS-C 23.7x15.6mm
- Much smaller screen: 1.0" vs 2.5"
- Much lower true resolution: 2 MP vs 6 MP
common strengths of the DSC-U40 and R-D1x
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