As well as being compared against other entry-level DSLRs, the Pentax K-3 is also often compared to pro DSLRs, mirrorless and compacts. The Pentax K-3's top rivals come from Pentax (such as the K-5 and the Q-S1) and Nikon (such as the D750 and the D7100)

compared toEntry-level DSLR competitors

Generally, some of the advantages of the Pentax K-3 compared to other entry-level DSLR competitors include: it has a significantly larger screen (3.2" vs 3"), has a slightly higher resolution screen (1,037k dots vs 921k dots), has better image stabilization (sensor shift vs none), takes much higher resolution photos (24.1 MP vs 16.2 MP) and records movies in 24p.

However, on average it records higher quality movies (1080p @ 30fps vs 1080p @ 60fps), has much more startup delay (900 ms vs 300 ms), doesn't have a screen which flips out, doesn't focus continuously while recording movies and slightly fewer lenses available (113 lenses vs 220 lenses).

Pentax K-5

Pentax K-5
3 years older
$331 (body only)

Significant advantages of the K-5 (vs the K-3)

  • Much less shutter lag: 104 ms vs 138 ms
  • Smaller: Prosumer size (131×97×73 mm) vs Professional size (131×100×77 mm)
  • Significantly thinner: 2.9" vs 3"

Significant disadvantages of the K-5 (vs the K-3)

  • Much lower true resolution: 16.1 MP vs 24.1 MP
  • No 24p support
  • Significantly lower resolution screen: 920k dots vs 1,037k dots

common strengths of the K-5 and K-3

  • Above average viewfinder size: 0.60x vs 0.62x
  • Fast continuous shooting: 7 fps vs 8.3 fps
  • Weather sealed

Canon EOS 80D

Canon EOS 80D
2 years newer
$872 - $999 (body only)
$870 - $1,149 18-55mm lens

Significant advantages of the EOS 80D (vs the K-3)

  • Higher frame rate movies: 1080p @ 60fps vs 1080p @ 30fps
  • Has a touch screen
  • Has a flip-out screen

Significant disadvantages of the EOS 80D (vs the K-3)

  • Significantly smaller screen: 3" vs 3.2"
  • Significantly lower true resolution: 24 MP vs 24.1 MP
  • Has fewer storage slots: 1 vs 2

common strengths of the EOS 80D and K-3

  • High resolution screens: 1,040k dots vs 1,037k dots
  • Above average viewfinder size: 0.59x vs 0.62x
  • Fast continuous shooting: 7 fps vs 8.3 fps

Nikon D7100

Nikon D7100
7 months older
$709 (body only)
$1,097 18-55mm lens

Significant advantages of the D7100 (vs the K-3)

  • Higher frame rate movies: 1080p @ 60fps vs 1080p @ 30fps
  • Much higher resolution screen: 1,229k dots vs 1,037k dots
  • Continuous video focus

Significant disadvantages of the D7100 (vs the K-3)

  • No image stabilization: None vs
    1. Sensor shift
  • Shoots significantly slower: 6 fps vs 8.3 fps
  • Significantly lower true resolution: 24 MP vs 24.1 MP

common strengths of the D7100 and K-3

  • High resolution screens: 1,229k dots vs 1,037k dots
  • Larger than average screens: 3.2" vs 3.2"
  • Above average viewfinder size: 0.61x vs 0.62x

Pentax K-70

Pentax K-70
2 years newer
$595 (body only)
$672 - $715 18-55mm lens

Significant advantages of the K-70 (vs the K-3)

  • Higher frame rate movies: 1080p @ 60fps vs 1080p @ 30fps
  • Has a flip-out screen
  • Has a GPS

Significant disadvantages of the K-70 (vs the K-3)

  • Significantly lower resolution screen: 921k dots vs 1,037k dots
  • Significantly smaller screen: 3" vs 3.2"
  • Shoots significantly slower: 6 fps vs 8.3 fps

common strengths of the K-70 and K-3

  • Above average viewfinder size: 0.62x vs 0.62x
  • Weather sealed
  • Both have pentaprism viewfinders: Pentaprism vs Pentaprism

Pentax K-50

Pentax K-50
3 months older
$1,444 18-55mm lens

Significant advantages of the K-50 (vs the K-3)

  • Significantly smaller: Prosumer size (129×97×70 mm) vs Professional size (131×100×77 mm)
  • Much thinner: 2.8" vs 3"

Significant disadvantages of the K-50 (vs the K-3)

  • Much lower true resolution: 16.2 MP vs 24.1 MP
  • Significantly lower resolution screen: 921k dots vs 1,037k dots
  • Significantly smaller screen: 3" vs 3.2"

common strengths of the K-50 and K-3

  • Above average viewfinder size: 0.61x vs 0.62x
  • Weather sealed
  • Both have pentaprism viewfinders: Pentaprism vs Pentaprism

Pentax KP

Pentax KP
3 years newer
$797 (body only)
$914 50mm lens

Significant advantages of the KP (vs the K-3)

  • Better maximum light sensitivity: 819,200 ISO vs 51,200 ISO
  • Has a flip-out screen
  • Has a GPS

Significant disadvantages of the KP (vs the K-3)

  • Significantly lower resolution screen: 921k dots vs 1,037k dots
  • Significantly smaller screen: 3" vs 3.2"
  • Slower autofocus: Contrast detection vs Phase detection

common strengths of the KP and K-3

  • Above average viewfinder size: 0.62x vs 0.62x
  • Fast continuous shooting: 7 fps vs 8.3 fps
  • Capture very high resolution images: 24.1 MP vs 24.1 MP

compared toPro DSLR competitors

Generally, some of the advantages of the Pentax K-3 compared to pro DSLR competitors include: it has a slightly larger screen (3.2" vs 3"), has image stabilization (sensor shift vs none), takes slightly higher resolution photos (24.1 MP vs 21 MP), shoots faster continuously (8.3 fps vs 6.5 fps) and has much less shutter lag (138 ms vs 249 ms).

However, on average it records higher quality movies (1080p @ 30fps vs 1080p @ 60fps), slightly smaller viewfinder (0.62x vs 0.70x), has much more startup delay (900 ms vs 400 ms), doesn't focus continuously while recording movies and significantly fewer lenses available (113 lenses vs 220 lenses).

Nikon D750

Nikon D750
1 year newer
$1,149 - $1,297 (body only)
$1,797 24-120mm lens

Significant advantages of the D750 (vs the K-3)

  • Continuous video focus
  • Significantly longer battery life: 1230 shots vs 560 shots
  • Has a flip-out screen

Significant disadvantages of the D750 (vs the K-3)

  • Shoots significantly slower: 6.5 fps vs 8.3 fps
  • Larger: Professional size (141×113×78 mm) vs Professional size (131×100×77 mm)
  • Much slower max shutter speed: 1/4000 of a second vs 1/8000 of a second

common strengths of the D750 and K-3

  • Multiple storage slots: 2 vs 2
  • Both have a built-in lens focus motor, which is uncommon in cameras similar to these
  • Inexpensive: $1,149.00 vs $817.68

Canon EOS 5D Mark II

Canon EOS 5D Mark II
5 years older
$2,311 24-105mm lens

Significant advantages of the 5D Mark II (vs the K-3)

  • Significantly larger viewfinder: 0.71x vs 0.62x

Significant disadvantages of the 5D Mark II (vs the K-3)

  • Shoots much slower: 3.9 fps vs 8.3 fps
  • Significantly smaller screen: 3" vs 3.2"
  • Has fewer storage slots: 1 vs 2

common strengths of the 5D Mark II and K-3

  • None found

Canon EOS 7D Mark II

Canon EOS 7D Mark II
6 months older
$949 - $1,399 (body only)
$1,275 - $1,799 18-135mm lens

Significant advantages of the 7D Mark II (vs the K-3)

  • Continuous video focus
  • Significantly more lenses available: 220 lenses vs 113 lenses
  • Significantly more focus points: 65 vs 27

Significant disadvantages of the 7D Mark II (vs the K-3)

  • Significantly smaller screen: 3" vs 3.2"
  • Significantly lower true resolution: 20 MP vs 24.1 MP
  • Significantly larger: Professional size (149×112×78 mm) vs Professional size (131×100×77 mm)

common strengths of the 7D Mark II and K-3

  • Fast continuous shooting: 10 fps vs 8.3 fps
  • Multiple storage slots: 2 vs 2
  • Inexpensive: $949.00 vs $817.68

Canon EOS 7D

Canon EOS 7D
4 years older
$1,099 (body only)
$1,418 18-135mm lens

Significant advantages of the 7D (vs the K-3)

  • Significantly more lenses available: 220 lenses vs 113 lenses
  • Thinner: 2.9" vs 3"

Significant disadvantages of the 7D (vs the K-3)

  • Significantly smaller screen: 3" vs 3.2"
  • Much lower true resolution: 17.9 MP vs 24.1 MP
  • Has fewer storage slots: 1 vs 2

common strengths of the 7D and K-3

  • Fast continuous shooting: 8 fps vs 8.3 fps
  • Fairly small: Professional size (148×111×74 mm) vs Professional size (131×100×77 mm)
  • Inexpensive: $1,099.00 vs $817.68

Canon EOS 5D Mark IV

Canon EOS 5D Mark IV
2 years newer
$2,219 - $2,999 (body only)
$2,558 - $3,899 24-105mm lens

Significant advantages of the 5D Mark IV (vs the K-3)

  • Significantly higher resolution screen: 1,620k dots vs 1,037k dots
  • Significantly higher true resolution: 30.1 MP vs 24.1 MP
  • Has a touch screen

Significant disadvantages of the 5D Mark IV (vs the K-3)

  • Has fewer storage slots: 1 vs 2
  • Shoots slower: 7 fps vs 8.3 fps
  • Significantly larger: Professional size (151×116×76 mm) vs Professional size (131×100×77 mm)

common strengths of the 5D Mark IV and K-3

  • None found

Canon EOS 6D

Canon EOS 6D
1 year older
$999 - $1,499 (body only)
$1,330 - $1,899 24-105mm lens

Significant advantages of the 6D (vs the K-3)

  • Larger viewfinder: 0.71x vs 0.62x
  • Significantly longer battery life: 980 shots vs 560 shots
  • Has a GPS

Significant disadvantages of the 6D (vs the K-3)

  • Shoots much slower: 4.5 fps vs 8.3 fps
  • Significantly smaller screen: 3" vs 3.2"
  • Has fewer storage slots: 1 vs 2

common strengths of the 6D and K-3

  • Fairly small: Professional size (145×111×71 mm) vs Professional size (131×100×77 mm)
  • Inexpensive: $999.00 vs $817.68

compared toMirrorless interchangeable-lens competitors

Generally, some of the advantages of the Pentax K-3 compared to mirrorless interchangeable-lens competitors include: it has a much larger screen (3.2" vs 3"), has a slightly higher resolution screen (1,037k dots vs 460k dots), has higher quality type of viewfinder (pentaprism vs none), has better image stabilization (sensor shift vs none) and takes slightly higher resolution photos (24.1 MP vs 15.9 MP).

However, on average it records higher quality movies (1080p @ 30fps vs 1080p @ 60fps), slightly smaller viewfinder (0.62x vs 0.73x), slightly lower maximum light sensitivity (51,200 ISO vs 409,600 ISO), doesn't have a touch screen and doesn't have a screen which flips out.

Pentax Q-S1

Pentax Q-S1
10 months newer
$333 5-15mm lens

Significant advantages of the Q-S1 (vs the K-3)

  • Much smaller: Compact (105×58×34 mm) vs Professional size (131×100×77 mm)
  • Much lighter: 203 g vs 800 g
  • Much thinner: 1.3" vs 3"

Significant disadvantages of the Q-S1 (vs the K-3)

  • Much smaller screen: 3" vs 3.2"
  • Much lower resolution screen: 460k dots vs 1,037k dots
  • No viewfinder: None vs Pentaprism

common strengths of the Q-S1 and K-3

  • Both have a built-in lens focus motor, which is uncommon in cameras similar to these
  • Inexpensive: $332.96 vs $817.68
  • Each has a built-in flash

Fujifilm X-T2

Fujifilm X-T2
2 years newer
$939 - $1,099 (body only)
$1,404 - $1,499 18-55mm lens

Significant advantages of the X-T2 (vs the K-3)

  • Has a flip-out screen
  • Significantly larger viewfinder: 0.76x vs 0.62x
  • Significantly more focus points: 325 vs 27

Significant disadvantages of the X-T2 (vs the K-3)

  • Much smaller screen: 3" vs 3.2"
  • Doesn't have a built-in focus motor
  • Has fewer storage slots: 1 vs 2

common strengths of the X-T2 and K-3

  • Weather sealed
  • Have external mic jacks
  • Both use faster phase detection autofocus: Phase detection vs Phase detection

Fujifilm X-T3

Placeholder
4 years newer
$1,399 (body only)
$1,699 18-55mm lens

Significant advantages of the X-T3 (vs the K-3)

  • Has a touch screen
  • Has a flip-out screen
  • Significantly more focus points: 425 vs 27

Significant disadvantages of the X-T3 (vs the K-3)

  • Much smaller screen: 3" vs 3.2"
  • Doesn't have a built-in focus motor
  • Has a digital viewfinder: Digital vs Pentaprism

common strengths of the X-T3 and K-3

  • Weather sealed
  • Have external mic jacks
  • Both use faster phase detection autofocus: Phase detection vs Phase detection

Sony Alpha A6000

Sony Alpha A6000
4 months newer
$379 - $498 (body only)
$479 - $598 16-50mm lens

Significant advantages of the A6000 (vs the K-3)

  • Better image stabilization:
    1. Lens
    vs
    1. Sensor shift
  • Continuous video focus
  • Has a flip-out screen

Significant disadvantages of the A6000 (vs the K-3)

  • Much smaller screen: 3" vs 3.2"
  • Doesn't have a built-in focus motor
  • Has fewer storage slots: 1 vs 2

common strengths of the A6000 and K-3

  • Have external mic jacks
  • Inexpensive: $379.00 vs $817.68
  • Each has a built-in flash

Sony A7S

Sony A7S
6 months newer
$1,998 (body only)
$2,598 28-70mm lens

Significant advantages of the A7S (vs the K-3)

  • Better maximum light sensitivity: 409,600 ISO vs 51,200 ISO
  • Has a flip-out screen
  • Smaller: Standard size (127×94×48 mm) vs Professional size (131×100×77 mm)

Significant disadvantages of the A7S (vs the K-3)

  • Much smaller screen: 3" vs 3.2"
  • No image stabilization: None vs
    1. Sensor shift
  • Doesn't have a built-in focus motor

common strengths of the A7S and K-3

  • Weather sealed
  • Have external mic jacks

Olympus OM-D E-M5 II

Olympus OM-D E-M5 II
1 year newer
$826 (body only)
$1,058 12-40mm lens

Significant advantages of the E-M5 II (vs the K-3)

  • Has a touch screen
  • Has a flip-out screen
  • Significantly smaller: Standard size (124×85×45 mm) vs Professional size (131×100×77 mm)

Significant disadvantages of the E-M5 II (vs the K-3)

  • Much smaller screen: 3" vs 3.2"
  • Doesn't have a built-in focus motor
  • Has fewer storage slots: 1 vs 2

common strengths of the E-M5 II and K-3

  • Weather sealed
  • Many lenses available: 108 lenses vs 113 lenses
  • Have external mic jacks

compared toCompact competitors

Generally, some of the advantages of the Pentax K-3 compared to compact competitors include: it has a much larger screen (3.2" vs 1.5"), has a much higher resolution screen (1,037k dots vs 123k dots), has image stabilization (sensor shift vs none), takes much higher resolution photos (24.1 MP vs 3.1 MP) and much higher maximum light sensitivity (51,200 ISO vs 400 ISO).

However, on average it is much larger (professional size (131×100×77 mm) vs compact (98×58×23 mm)), is thicker (3" vs 0.9") and is much heavier (800 g vs 125 g).

Sony Cyber-shot DSC-P8

Sony Cyber-shot DSC-P8
10 years older

Significant advantages of the DSC-P8 (vs the K-3)

  • Much smaller: Compact (105×52×36 mm) vs Professional size (131×100×77 mm)
  • Much lighter: 206 g vs 800 g
  • Much thinner: 1.4" vs 3"

Significant disadvantages of the DSC-P8 (vs the K-3)

  • Worse maximum light sensitivity: 400 ISO vs 51,200 ISO
  • Much smaller screen: 1.5" vs 3.2"
  • No image stabilization: None vs
    1. Sensor shift

common strengths of the DSC-P8 and K-3

  • Each has a built-in flash
  • Viewfinders: Tunnel vs Pentaprism

Kodak EasyShare M550

Kodak EasyShare M550
3 years older

Significant advantages of the M550 (vs the K-3)

  • Much smaller: Compact (98×58×23 mm) vs Professional size (131×100×77 mm)
  • Much lighter: 125 g vs 800 g
  • Much thinner: 0.9" vs 3"

Significant disadvantages of the M550 (vs the K-3)

  • Worse maximum light sensitivity: 1,000 ISO vs 51,200 ISO
  • No image stabilization: None vs
    1. Sensor shift
  • Has a CCD-family sensor: CCD vs CMOS

common strengths of the M550 and K-3

  • Each has a built-in flash