Sigma SD15
Competitors

As well as being compared against other entry-level DSLRs, the Sigma SD15 is also often compared to boutiques, pro DSLRs and mirrorless. The Sigma SD15's top rivals come from Nikon (such as the D5100 and the D90) and Sigma (such as the SD1 and the SD14)

Generally, some of the advantages of the Sigma SD15 compared to other entry-level DSLR competitors include: it has a slightly larger screen (3.0" vs 2.5"), uses fast phase detection autofocus (phase detection vs contrast detection) and is slightly less expensive ($940.08 vs $2,955.27).

However, on average it doesn't record movies (none vs 1080p @ 24fps), has a significantly lower resolution screen (150k dots vs 920k dots), slightly smaller viewfinder (0.52x vs 0.60x), takes much lower resolution photos (4.6 MP vs 15.4 MP) and slightly lower maximum light sensitivity (800 ISO vs 6,400 ISO).

Nikon D5100 2 years newer $500 - $597 (body only) $600 - $697 18-55mm lens	Significant advantages of the D5100 (vs the SD15) Shoots movies: 1080p @ 30fps vs None Much higher resolution screen: 920k dots vs 150k dots Much higher true resolution: 16.1 MP vs 4.6 MP Significant disadvantages of the D5100 (vs the SD15) Doesn't have a built-in focus motor Significantly less viewfinder coverage: 95% vs 98% common strengths of the D5100 and SD15 None found
	Compare the Nikon D5100 vs the Sigma SD15
Nikon D90 similar age $830 - $897 (body only) $1,200 - $1,299 18-105mm lens	Significant advantages of the D90 (vs the SD15) Much higher resolution screen: 930k dots vs 150k dots Has live view Much larger sensor: APS-C 23.6x15.8mm vs Four thirds 20.7x13.8mm Significant disadvantages of the D90 (vs the SD15) None found common strengths of the D90 and SD15 Both have pentaprism viewfinders: Pentaprism vs Pentaprism
	Compare the Nikon D90 vs the Sigma SD15
Sigma SD1 1 year newer $2,955 (body only)	Significant advantages of the SD1 (vs the SD15) Much higher true resolution: 15.4 MP vs 4.6 MP Much larger sensor: APS-C 23.5x15.7mm vs Four thirds 20.7x13.8mm Weather sealed Significant disadvantages of the SD1 (vs the SD15) None found common strengths of the SD1 and SD15 Both have pentaprism viewfinders: Pentaprism vs Pentaprism
	Compare the SD1 vs the SD15
Sigma SD14 2 years older	Significant advantages of the SD14 (vs the SD15) None found Significant disadvantages of the SD14 (vs the SD15) Much smaller screen: 2.5" vs 3.0" Slower autofocus: Contrast detection vs Phase detection common strengths of the SD14 and SD15 Both have pentaprism viewfinders: Pentaprism vs Pentaprism
	Compare the SD14 vs the SD15
Pentax K-5 2 years newer $1,129 (body only) $1,283 18-55mm lens	Significant advantages of the K-5 (vs the SD15) Shoots movies: 1080p @ 25fps vs None Much higher resolution screen: 920k dots vs 150k dots Much higher true resolution: 16.1 MP vs 4.6 MP Significant disadvantages of the K-5 (vs the SD15) None found common strengths of the K-5 and SD15 Both have pentaprism viewfinders: Pentaprism vs Pentaprism
	Compare the Pentax K-5 vs the Sigma SD15
Nikon D7000 2 years newer $1,000 - $1,197 (body only) $1,100 55-200mm lens	Significant advantages of the D7000 (vs the SD15) Shoots movies: 1080p @ 24fps vs None Many more focus points: 39 vs 7 Much higher resolution screen: 920k dots vs 150k dots Significant disadvantages of the D7000 (vs the SD15) None found common strengths of the D7000 and SD15 Both have pentaprism viewfinders: Pentaprism vs Pentaprism
	Compare the Nikon D7000 vs the Sigma SD15

Generally, some of the advantages of the Sigma SD15 compared to boutique competitors include: it has a much larger screen (3.0" vs 2.5"), focuses automatically (phase detection vs contrast detection), has interchangeable lenses, has a viewfinder (pentaprism vs none) and has a faster max shutter speed (1/4000 of a second vs 1/2000 of a second).

However, on average it is much larger (professional size 144x107x81 mm vs mid size 113x60x50 mm), is older (september, 2008 vs february, 2010), is thicker (3.2" vs 2"), is much heavier (750 g vs 250 g) and doesn't let you preview your photos on the screen.

Sigma DP2X 2 years newer $852	Significant advantages of the DP2X (vs the SD15) Much smaller: Mid size 113x59x56 mm vs Professional size 144x107x81 mm Much lighter: 280 g vs 750 g Much thinner: 2.2" vs 3.2" Significant disadvantages of the DP2X (vs the SD15) Slower autofocus: Contrast detection vs Phase detection Much smaller screen: 2.5" vs 3.0" Built-in lens only common strengths of the DP2X and SD15 Inexpensive: $851.63 vs $940.08
	Compare the DP2X vs the SD15
Sigma DP2 similar age $916 - $1,061	Significant advantages of the DP2 (vs the SD15) Much smaller: Mid size 113x60x56 mm vs Professional size 144x107x81 mm Much lighter: 280 g vs 750 g Much thinner: 2.2" vs 3.2" Significant disadvantages of the DP2 (vs the SD15) Slower autofocus: Contrast detection vs Phase detection Much smaller screen: 2.5" vs 3.0" Built-in lens only common strengths of the DP2 and SD15 Inexpensive: $916.25 vs $940.08
	Compare the DP2 vs the SD15
Sigma DP1x 1 year newer $790	Significant advantages of the DP1x (vs the SD15) Much smaller: Mid size 113x60x50 mm vs Professional size 144x107x81 mm Much lighter: 250 g vs 750 g Much thinner: 2" vs 3.2" Significant disadvantages of the DP1x (vs the SD15) Slower autofocus: Contrast detection vs Phase detection Much smaller screen: 2.5" vs 3.0" Built-in lens only common strengths of the DP1x and SD15 Inexpensive: $789.58 vs $940.08 Fast max shutter speeds: 1/4000 of a second vs 1/4000 of a second
	Compare the DP1x vs the SD15

Generally, some of the advantages of the Sigma SD15 compared to pro DSLR competitors include: it has a slightly larger screen (3.0" vs 2.5"), uses fast phase detection autofocus (phase detection vs contrast detection) and has a CMOS-family sensor (CMOS vs CCD).

However, on average it doesn't record movies (none vs 1080p @ 30fps), has a significantly lower resolution screen (150k dots vs 920k dots), significantly smaller viewfinder (0.52x vs 0.71x), takes much lower resolution photos (4.6 MP vs 21 MP) and doesn't let you preview your photos on the screen.

Canon EOS 60D 1 year newer $848 - $1,304 (body only) $1,177 - $1,342 18-135mm lens	Significant advantages of the 60D (vs the SD15) Much higher resolution screen: 1,040k dots vs 150k dots Has live view Shoots movies: 1080p @ 30fps vs None Significant disadvantages of the 60D (vs the SD15) None found common strengths of the 60D and SD15 Fairly small: Professional size 145x106x79 mm vs Professional size 144x107x81 mm Supports RAW Inexpensive: $848.00 vs $940.08
	Compare the Canon EOS 60D vs the Sigma SD15
Canon EOS 5D Mark II similar age $2,154 (body only) $2,898 - $2,999 24-105mm lens	Significant advantages of the 5D Mark II (vs the SD15) Much higher resolution screen: 920k dots vs 150k dots Has live view Much higher true resolution: 21 MP vs 4.6 MP Significant disadvantages of the 5D Mark II (vs the SD15) No built-in flash common strengths of the 5D Mark II and SD15 Fairly small: Professional size 152x114x75 mm vs Professional size 144x107x81 mm Supports RAW Inexpensive: $2,153.81 vs $940.08
	Compare the Canon EOS 5D Mark II vs the Sigma SD15
Nikon D200 2 years older $1,300 (body only)	Significant advantages of the D200 (vs the SD15) Much more lenses available: 169 lenses vs 45 lenses Weather sealed Larger viewfinder: 0.62x vs 0.52x Significant disadvantages of the D200 (vs the SD15) Much smaller screen: 2.5" vs 3.0" Has a CCD-family sensor: CCD vs CMOS Significantly less viewfinder coverage: 95% vs 98% common strengths of the D200 and SD15 Fairly small: Professional size 147x113x74 mm vs Professional size 144x107x81 mm Supports RAW Inexpensive: $1,299.99 vs $940.08
	Compare the Nikon D200 vs the Sigma SD15
Canon EOS 7D 1 year newer $1,549 - $1,821 (body only) $1,500 - $1,849 18-135mm lens	Significant advantages of the 7D (vs the SD15) Much higher resolution screen: 920k dots vs 150k dots Has live view Shoots movies: 1080p @ 30fps vs None Significant disadvantages of the 7D (vs the SD15) None found common strengths of the 7D and SD15 Fairly small: Professional size 148x111x74 mm vs Professional size 144x107x81 mm Supports RAW Inexpensive: $1,500.00 vs $940.08
	Compare the Canon EOS 7D vs the Sigma SD15
Fujifilm FinePix S5 Pro 2 years older	Significant advantages of the S5 Pro (vs the SD15) Significantly higher true resolution: 12.1 MP vs 4.6 MP Thinner: 2.9" vs 3.2" Much faster max shutter speed: 1/8000 of a second vs 1/4000 of a second Significant disadvantages of the S5 Pro (vs the SD15) Much smaller screen: 2.5" vs 3.0" Slower autofocus: Contrast detection vs Phase detection Has a CCD-family sensor: CCD vs CMOS common strengths of the S5 Pro and SD15 Fairly small: Professional size 147x113x74 mm vs Professional size 144x107x81 mm Supports RAW Built-in flashes
	Compare the Fujifilm FinePix S5 Pro vs the Sigma SD15
Nikon D800 3 years newer $2,999 - $3,000 (body only)	Significant advantages of the D800 (vs the SD15) Much higher true resolution: 36.2 MP vs 4.6 MP Much higher resolution screen: 921k dots vs 150k dots Has live view Significant disadvantages of the D800 (vs the SD15) None found common strengths of the D800 and SD15 Fairly small: Large 146x123x82 mm vs Professional size 144x107x81 mm Supports RAW Inexpensive: $2,999.00 vs $940.08
	Compare the Nikon D800 vs the Sigma SD15

Generally, some of the advantages of the Sigma SD15 compared to mirrorless interchangeable-lens competitors include: it has a significantly larger screen (3.0" vs 2.7"), has higher quality type of viewfinder (pentaprism vs none), slightly larger viewfinder (0.52x vs 0.44x), slightly more lenses available (45 lenses vs 8 lenses) and has a significantly longer battery life (500 shots vs 290 shots).

However, on average it doesn't record movies (none vs 1080p @ 60fps), has a significantly lower resolution screen (150k dots vs 610k dots), doesn't have image stabilization (none vs sensor shift), takes much lower resolution photos (4.6 MP vs 15.9 MP) and significantly lower maximum light sensitivity (800 ISO vs 16,000 ISO).

Leica M8 2 years older	Significant advantages of the M8 (vs the SD15) Much smaller: Mid size 139x80x37 mm vs Professional size 144x107x81 mm Significantly higher true resolution: 10.4 MP vs 4.6 MP Significantly larger sensor: APS-H 27.0x18.0mm vs Four thirds 20.7x13.8mm Significant disadvantages of the M8 (vs the SD15) Much smaller screen: 2.5" vs 3.0" Slower autofocus: Contrast detection vs Phase detection Doesn't have a through-the-lens viewfinder: Rangefinder vs Pentaprism common strengths of the M8 and SD15 Viewfinders: Rangefinder vs Pentaprism
	Compare the Leica M8 vs the Sigma SD15
Olympus OM-D E-M5 3 years newer $1,000 - $1,299 (body only) $1,100 14-42mm lens	Significant advantages of the E-M5 (vs the SD15) Shoots movies: 1080p @ 60fps vs None Weather sealed Better maximum light sensitivity: 25,600 ISO vs 800 ISO Significant disadvantages of the E-M5 (vs the SD15) Slower autofocus: Contrast detection vs Phase detection Has a digital viewfinder: Digital vs Pentaprism No built-in flash common strengths of the E-M5 and SD15 Viewfinders: Digital vs Pentaprism Above average viewfinder size: 0.44x vs 0.52x
	Compare the Olympus OM-D E-M5 vs the Sigma SD15
Ricoh GXR (A12) 1 year newer	Significant advantages of the GXR (A12) (vs the SD15) Much higher resolution screen: 920k dots vs 150k dots Shoots movies: 720p @ 24fps vs None Has live view Significant disadvantages of the GXR (A12) (vs the SD15) None found common strengths of the GXR (A12) and SD15 Each has a built-in flash
	Compare the Ricoh GXR (A12) vs the Sigma SD15
Olympus PEN E-PL1 1 year newer $219 - $279 14-42mm lens	Significant advantages of the PEN E-PL1 (vs the SD15) Shoots movies: 720p @ 30fps vs None Has live view Much smaller: Mid size 115x72x42 mm vs Professional size 144x107x81 mm Significant disadvantages of the PEN E-PL1 (vs the SD15) Much smaller screen: 2.7" vs 3.0" No viewfinder: None vs Pentaprism Many fewer cross-type focus points: 0 vs 1 common strengths of the PEN E-PL1 and SD15 Each has a built-in flash
	Compare the Olympus PEN E-PL1 vs the Sigma SD15
Sony NEX-7 2 years newer $1,200 (body only) $1,350 - $1,499 18-55mm lens	Significant advantages of the NEX-7 (vs the SD15) Shoots movies: 1080p @ 60fps vs None Much higher true resolution: 24 MP vs 4.6 MP Much higher resolution screen: 921k dots vs 150k dots Significant disadvantages of the NEX-7 (vs the SD15) Slower autofocus: Contrast detection vs Phase detection Has a digital viewfinder: Digital vs Pentaprism Significantly fewer lenses available: 8 lenses vs 45 lenses common strengths of the NEX-7 and SD15 Viewfinders: Digital vs Pentaprism Great battery life: 430 shots vs 500 shots Each has a built-in flash
	Compare the Sony NEX-7 vs the Sigma SD15
Panasonic Lumix DMC-G2 1 year newer $615 - $642 14-42mm lens	Significant advantages of the DMC-G2 (vs the SD15) Shoots movies: 720p @ 30fps vs None Has live view Much higher true resolution: 12 MP vs 4.6 MP Significant disadvantages of the DMC-G2 (vs the SD15) Many fewer cross-type focus points: 0 vs 1 Slower autofocus: Contrast detection vs Phase detection Has a digital viewfinder: Digital vs Pentaprism common strengths of the DMC-G2 and SD15 Viewfinders: Digital vs Pentaprism Great battery life: 390 shots vs 500 shots Each has a built-in flash
	Compare the Panasonic Lumix DMC-G2 vs the Sigma SD15