Pentax K-x
Competitors

As well as being compared against other entry-level DSLRs, the Pentax K-x is also often compared to pro DSLRs. The Pentax K-x's top rivals come from Pentax (such as the K-r and the K-5) and Nikon (such as the D3100 and the D5100)

Generally, some of the advantages of the Pentax K-x compared to other entry-level DSLR competitors include: it has better image stabilization (sensor shift vs none), records movies in 24p, has in-camera HDR, has significantly less shutter lag (97 ms vs 208 ms) and has significantly more cross-type focus points (9 vs 1).

However, on average it is slightly more noisy at high ISO (811 ISO vs 977 ISO), records lower quality movies (720p @ 24fps vs 1080p @ 24fps), has a much smaller screen (2.7" vs 3.0"), has a significantly lower resolution screen (230k dots vs 920k dots) and takes slightly lower resolution photos (12.2 MP vs 16.1 MP).

Pentax K-r 1 year newer $631 - $649 18-55mm lens	Significant advantages of the K-r (vs the K-x) Much larger screen: 3.0" vs 2.7" Much higher resolution screen: 920k dots vs 230k dots Better maximum light sensitivity: 12,800 ISO vs 6,400 ISO Significant disadvantages of the K-r (vs the K-x) No 24p support common strengths of the K-r and K-x Good dynamic range: 12.4 EV vs 12.5 EV Good image stabilization: Sensor shift vs Sensor shift Incredible shutter lag: 105 ms vs 97 ms
	Compare the K-r vs the K-x
Nikon D3100 1 year newer $500 - $547 18-55mm lens	Significant advantages of the D3100 (vs the K-x) Much larger screen: 3.0" vs 2.7" Higher resolution movies: 1080p @ 24fps vs 720p @ 24fps Significantly more lenses available: 169 lenses vs 90 lenses Significant disadvantages of the D3100 (vs the K-x) Less dynamic range: 11.3 EV vs 12.5 EV No image stabilization: None vs Sensor shift Much more shutter lag: 279 ms vs 97 ms common strengths of the D3100 and K-x 24p support Fairly small: Prosumer size 124x96x73 mm vs Prosumer size 123x92x68 mm Thin: 2.9" vs 2.7"
	Compare the Nikon D3100 vs the Pentax K-x
Nikon D5100 1 year newer $500 - $597 (body only) $600 - $697 18-55mm lens	Significant advantages of the D5100 (vs the K-x) Significantly lower noise at high ISO: 1,183 ISO vs 811 ISO Much larger screen: 3.0" vs 2.7" Much higher resolution screen: 920k dots vs 230k dots Significant disadvantages of the D5100 (vs the K-x) No image stabilization: None vs Sensor shift Much more shutter lag: 273 ms vs 97 ms Many fewer cross-type focus points: 1 vs 9 common strengths of the D5100 and K-x Good dynamic range: 13 EV vs 12.5 EV 24p support In-camera HDR
	Compare the Nikon D5100 vs the Pentax K-x
Pentax K-5 1 year newer $888 - $1,129 (body only) $1,033 - $1,283 18-55mm lens	Significant advantages of the K-5 (vs the K-x) Significantly lower noise at high ISO: 1,162 ISO vs 811 ISO Significantly better image quality: 82.0 vs 72.0 Much larger screen: 3.0" vs 2.7" Significant disadvantages of the K-5 (vs the K-x) No 24p support Larger: Prosumer size 130x96x72 mm vs Prosumer size 123x92x68 mm Significantly heavier: 740 g vs 580 g common strengths of the K-5 and K-x Good dynamic range: 14.1 EV vs 12.5 EV Good image stabilization: Sensor shift vs Sensor shift Incredible shutter lag: 104 ms vs 97 ms
	Compare the K-5 vs the K-x
Canon Rebel T2i 4 months newer $544 - $949 (body only) $649 - $867 18-55mm lens	Significant advantages of the T2i (vs the K-x) Much higher resolution screen: 1,040k dots vs 230k dots Much larger screen: 3.0" vs 2.7" Higher resolution movies: 1080p @ 30fps vs 720p @ 24fps Significant disadvantages of the T2i (vs the K-x) Less dynamic range: 11.5 EV vs 12.5 EV No image stabilization: None vs Sensor shift Much more shutter lag: 252 ms vs 97 ms common strengths of the T2i and K-x 24p support Very small: Prosumer size 129x98x62 mm vs Prosumer size 123x92x68 mm Very thin: 2.4" vs 2.7"
	Compare the Canon EOS Rebel T2i vs the Pentax K-x
Nikon D90 1 year older $897 (body only) $1,047 55-200mm lens	Significant advantages of the D90 (vs the K-x) Much larger screen: 3.0" vs 2.7" Much higher resolution screen: 930k dots vs 230k dots Significantly more lenses available: 169 lenses vs 90 lenses Significant disadvantages of the D90 (vs the K-x) No image stabilization: None vs Sensor shift Many fewer cross-type focus points: 1 vs 9 Lacks in-camera HDR common strengths of the D90 and K-x Good dynamic range: 12.5 EV vs 12.5 EV 24p support Large sensors: APS-C 23.6x15.8mm vs APS-C 23.6x15.8mm
	Compare the Nikon D90 vs the Pentax K-x

Generally, some of the advantages of the Pentax K-x compared to pro DSLR competitors include: it has slightly wider dynamic range (12.5 EV vs 11.5 EV), has image stabilization (sensor shift vs none), lets you preview your photos on the screen, has in-camera HDR and has slightly less shutter lag (97 ms vs 197 ms).

However, on average it is slightly more noisy at high ISO (811 ISO vs 1,368 ISO), has a significantly smaller screen (2.7" vs 3.0"), has a significantly lower resolution screen (230k dots vs 920k dots), slightly smaller viewfinder (0.56x vs 0.71x) and takes slightly lower resolution photos (12.2 MP vs 17.9 MP).

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 K-x) Much higher resolution screen: 1,040k dots vs 230k dots Much larger screen: 3.0" vs 2.7" Has an external mic jack Significant disadvantages of the 60D (vs the K-x) Less dynamic range: 11.5 EV vs 12.5 EV No image stabilization: None vs Sensor shift Lacks in-camera HDR common strengths of the 60D and K-x Fairly small: Professional size 145x106x79 mm vs Prosumer size 123x92x68 mm Supports RAW Thin: 3.1" vs 2.7"
	Compare the Canon EOS 60D vs the Pentax K-x
Canon EOS 7D similar age $1,549 - $1,821 (body only) $1,620 - $1,849 18-135mm lens	Significant advantages of the 7D (vs the K-x) Much higher resolution screen: 920k dots vs 230k dots Much larger screen: 3.0" vs 2.7" Has an external mic jack Significant disadvantages of the 7D (vs the K-x) No image stabilization: None vs Sensor shift Less dynamic range: 11.7 EV vs 12.5 EV Lacks in-camera HDR common strengths of the 7D and K-x Fairly small: Professional size 148x111x74 mm vs Prosumer size 123x92x68 mm Supports RAW Thin: 2.9" vs 2.7"
	Compare the Canon EOS 7D vs the Pentax K-x
Canon EOS 50D 1 year older $1,282 - $1,300 (body only)	Significant advantages of the 50D (vs the K-x) Much higher resolution screen: 920k dots vs 230k dots Much larger screen: 3.0" vs 2.7" Significantly more lenses available: 162 lenses vs 90 lenses Significant disadvantages of the 50D (vs the K-x) Worse color depth: 21.8 bits vs 22.8 bits Less dynamic range: 11.4 EV vs 12.5 EV Worse image quality: 63.0 vs 72.0 common strengths of the 50D and K-x Fairly small: Professional size 146x108x74 mm vs Prosumer size 123x92x68 mm Supports RAW Thin: 2.9" vs 2.7"
	Compare the Canon EOS 50D vs the Pentax K-x
Canon EOS 5D Mark II 1 year older $2,130 (body only) $2,875 - $2,999 24-105mm lens	Significant advantages of the 5D Mark II (vs the K-x) Significantly lower noise at high ISO: 1,815 ISO vs 811 ISO Much higher resolution screen: 920k dots vs 230k dots Much larger screen: 3.0" vs 2.7" Significant disadvantages of the 5D Mark II (vs the K-x) No image stabilization: None vs Sensor shift Lacks in-camera HDR Significantly more shutter lag: 206 ms vs 97 ms common strengths of the 5D Mark II and K-x Fairly small: Professional size 152x114x75 mm vs Prosumer size 123x92x68 mm Supports RAW Thin: 3" vs 2.7"
	Compare the Canon EOS 5D Mark II vs the Pentax K-x
Nikon D700 1 year older $2,649 (body only)	Significant advantages of the D700 (vs the K-x) Significantly lower noise at high ISO: 2,303 ISO vs 811 ISO Much higher resolution screen: 922k dots vs 230k dots Much larger screen: 3.0" vs 2.7" Significant disadvantages of the D700 (vs the K-x) No image stabilization: None vs Sensor shift Lacks in-camera HDR Significantly more shutter lag: 197 ms vs 97 ms common strengths of the D700 and K-x Fairly small: Large 147x123x77 mm vs Prosumer size 123x92x68 mm Supports RAW Thin: 3" vs 2.7"
	Compare the Nikon D700 vs the Pentax K-x
Canon EOS 5D 4 years older $3,991 - $4,273 24-105mm lens	Significant advantages of the 5D (vs the K-x) Significantly larger viewfinder: 0.71x vs 0.56x Much larger sensor: Full frame 36.0x24.0mm vs APS-C 23.6x15.8mm Significant disadvantages of the 5D (vs the K-x) Less dynamic range: 11.1 EV vs 12.5 EV No live view No image stabilization: None vs Sensor shift common strengths of the 5D and K-x Fairly small: Professional size 152x113x75 mm vs Prosumer size 123x92x68 mm Supports RAW Thin: 3" vs 2.7"
	Compare the Canon EOS 5D vs the Pentax K-x