Updated (June, 2014): Compare the Canon Rebel T4i vs Nikon D810

Nikon D800

Winner
Nikon D800

100

vs

Canon Rebel T3i

61

Canon Rebel T3i

Runner-up
     

Reasons to buy the Nikon D800

Low noise at high ISO
Low light performance
2,853 ISO
Great image quality
Overall image quality
95.0
Great color depth
Color depth
25.3 bits
Wide dynamic range
Dynamic range
14.4 EV
 

Reasons to buy the Canon Rebel T3i

Screen resolution
High resolution screen
1,040k dots
Screen flips out
Flip-out screen
Great for movies
Sensor cleaning
Self cleaning sensor
Avoids dust in your photos
 

differences

Advantages of the Canon T3i

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Screen flips out
Has a flip-out screen
Yes vs No
Help
Flip-out screens can be helpful when composing tricky shots or taking movies
Lens availability
More lenses available
197 lenses vs 152 lenses
Help
Around 30% more lenses available
Screen resolution
Higher resolution screen
1,040k dots vs 921k dots
Help
More than 10% higher resolution screen
Size
Significantly smaller
133x99x79 mm vs 146x123x82 mm
Help
Around 30% smaller
Weight
Much lighter
570 g vs 1,000 g
Help
More than 40% lighter
Lowest price
Much cheaper
$499.00 vs $2,996.95
Help
The best price we've seen is $2,498 cheaper (6x less)
Thickness
Thinner
3.1" vs 3.2"
Help
Almost the same
Canon Rebel T3i Learn more about
the Canon T3i

Advantages of the Nikon D800

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Low light performance
Much lower noise at high ISO
2,853 ISO vs 793 ISO
Help
The D800 has excellent image quality 1.8 f-stops higher ISO than the T3i
Overall image quality
Much better image quality
95.0 vs 65.0
Help
Around 50% better image quality
Dynamic range
More dynamic range
14.4 EV vs 11.5 EV
Help
2.9 f-stops more dynamic range
Color depth
Better color depth
25.3 bits vs 22.1 bits
Help
Distinguishes 3.2 more bits of color
True resolution
Much higher true resolution
36.2 MP vs 17.9 MP
Help
Capture more than 2x more detail in your photos
HDR
Has in-camera HDR
Yes vs No
Help
Combines multiple exposures to capture high dynamic range
Startup delay
Much less startup delay
200 ms vs 1500 ms
Help
7.5x less delay when turning on
Viewfinder size
Much larger viewfinder
0.70x vs 0.53x
Help
Around 80% larger viewfinder
Screen size
Significantly larger screen
3.2" vs 3.0"
Help
Around 10% larger screen
Sensor size
Much larger sensor
Full frame 35.9x24.0mm vs APS-C 22.3x14.9mm
Help
More than 2.5x larger sensor
Weather sealed
Weather sealed
Yes vs No
Help
Sealed to shoot in the rain
Focus points
Many more focus points
51 vs 9
Help
Set focus accurately within the frame
Autofocus
Video autofocus
Contrast detection vs None
Help
Automatically focuses shooting video
Cross type focus points
More cross-type focus points
15 vs 1
Help
Grab focus in difficult situations
Viewfinder coverage
Much better viewfinder coverage
100% vs 95%
Help
Around 10% better viewfinder coverage
Shutter lag
Less shutter lag
209 ms vs 283 ms
Help
Around 30% less delay when taking photos
Battery life
Longer battery life
900 shots vs 440 shots
Help
More than 2x more shots per battery charge
Viewfinder
Has a pentaprism viewfinder
Pentaprism vs Pentamirror
Help
Pentaprism viewfinders are typically brighter
Built-in focus motor
Has a built-in focus motor
Yes vs No
Help
Autofocuses with all autofocus lenses
Storage slots
Has more storage slots
2 vs 1
Help
More slots allows storing more images without switching memory cards
Fastest shutter speed
Much faster max shutter speed
1/8000s vs 1/4000s
Help
2x faster max shutter speed
Continuous shooting
Shoots slightly faster
4 fps vs 3.7 fps
Help
Around 10% faster continuous shooting
Light sensitivity (boost)
Better boost ISO
25,600 ISO vs 12,800 ISO
Help
The D800's boost ISO is 1 f-stop better
Nikon D800 Learn more about
the Nikon D800
vs

recommendations

Which camera do we recommend? Relative to the best recent DSLRs, and ignoring price

Snapsort Recommends
Canon Rebel T3i Canon Rebel T3i 61
Retailer
    Style
      Color
        You save

        vs

        100 Nikon D800 Nikon D800
        Retailer
          Style
            Color
              You save

              similarities

              Compared to recent DSLRs

              Common Strengths

              Snapsort is not aware of any interesting strengths shared by these two products.

              Common Weaknesses
              Thickness Quite thick Help
              T3i:3.1"
              D800:3.2"
              Continuous shooting Slow continuous shooting Help
              T3i:3.7 fps
              D800:4 fps
              Light sensitivity Poor maximum light sensitivity Help
              6,400 ISO
              Image stabilization No image stabilization Help
              Risk of blur

              dxomark

              DXOMark

              competitors

              Shared Competitors

              Advantages

              Disadvantages

              Nikon D3200

              Nikon D3200

              Entry-level DSLR

              $309 - $527 body only

              $389 - $447 with 18-55mm lens

              Thickness Is thinner
              Fastest shutter speed Has a slower max shutter speed
              Shutter lag Has slightly more shutter lag
              Nikon D5300

              Nikon D5300

              Entry-level DSLR

              $697 body only

              $599 - $797 with 18-55mm lens

              Continuous shooting Shoots faster continuously
              GPS Has a built-in GPS
              Fastest shutter speed Has a slower max shutter speed
              Startup delay Has slightly more startup delay
              Canon EOS 70D

              Canon EOS 70D

              Pro DSLR

              $999 body only

              $1,129 - $1,149 with 18-55mm lens

              Touch screen Has a touch screen
              Continuous shooting Shoots faster continuously
              Weight Is slightly heavier
              Size Is slightly larger
              Canon EOS 6D

              Canon EOS 6D

              Pro DSLR

              $1,519 - $1,899 body only

              $2,299 - $2,499 with 24-105mm lens

              Light sensitivity Significantly higher maximum light sensitivity
              Light sensitivity (boost) Slightly higher boost light sensitivity
              Fastest shutter speed Has a slower max shutter speed
              Built-in flash Doesn't have a built-in flash
              Canon EOS 7D

              Canon EOS 7D

              Pro DSLR

              $999 - $1,499 body only

              $1,099 - $1,978 with 28-135mm lens

              Continuous shooting Shoots faster continuously
              Shutter lag Has slightly less shutter lag
              Weight Is significantly heavier
              Size Is slightly larger
              Nikon D7000

              Nikon D7000

              Entry-level DSLR

              $625 body only

              $679 - $1,025 with 18-55mm lens

              Continuous shooting Shoots faster continuously
              Thickness Is thinner
              Weight Is slightly heavier
              Startup delay Has slightly more startup delay
              Canon EOS 5D Mark II

              Canon EOS 5D Mark II

              Pro DSLR

              $2,495 body only

              Thickness Is thinner
              Built-in flash Doesn't have a built-in flash
              Lowest price Is significantly more expensive

              Canon Rebel T3i Competitors

              Advantages

              Disadvantages

              Canon Rebel T5i

              Canon Rebel T5i

              Entry-level DSLR

              $599 - $750 body only

              $597 - $700 with 18-55mm lens

              HDR Has in-camera HDR
              Touch screen Has a touch screen
              Color depth Worse color depth
              Dynamic range Less dynamic range
              Canon EOS Rebel T5

              Canon EOS Rebel T5

              Entry-level DSLR

              $430 - $450 with 18-55mm lens

              Autofocus Video autofocus
              Battery life Slightly longer battery life
              Screen resolution Much lower resolution screen
              External mic jack Lacks an external mic jack
              Canon Rebel SL1

              Canon Rebel SL1

              Entry-level DSLR

              $449 - $549 body only

              $549 - $550 with 18-55mm lens

              HDR Has in-camera HDR
              Touch screen Has a touch screen
              Color depth Worse color depth
              Screen flips out Screen does not flip out
              Nikon D5100

              Nikon D5100

              Entry-level DSLR

              $360 - $385 body only

              $429 - $499 with 18-55mm lens

              Overall image quality Significantly better image quality
              Dynamic range More dynamic range
              Screen resolution Lower resolution screen
              True resolution Lower true resolution
              Canon EOS 60D

              Canon EOS 60D

              Pro DSLR

              $699 - $899 body only

              $959 - $1,182 with 18-135mm lens

              Startup delay Much less startup delay
              Battery life Significantly longer battery life
              Size Larger
              Weight Heavier

              Nikon D800 Competitors

              Advantages

              Disadvantages

              Nikon D810

              Nikon D810

              Pro DSLR

              $2,997 - $3,297 body only

              $4,590 - $4,890 with 24-70mm lens

              Screen resolution Significantly higher resolution screen
              Overall image quality Slightly better image quality
              Nikon D750

              Nikon D750

              Pro DSLR

              $2,149 - $2,297 body only

              $2,997 with 24-120mm lens

              Screen resolution Significantly higher resolution screen
              Screen flips out Has a flip-out screen
              True resolution Much lower true resolution
              Overall image quality Slightly worse image quality
              Canon EOS 5D Mark III

              Canon EOS 5D Mark III

              Pro DSLR

              $3,099 - $3,399 body only

              $3,699 - $3,999 with 24-105mm lens

              Cross type focus points Many more cross-type focus points
              Light sensitivity Better maximum light sensitivity
              Dynamic range Less dynamic range
              Overall image quality Significantly worse image quality
              Nikon D610

              Nikon D610

              Pro DSLR

              $1,497 - $1,597 body only

              $1,897 - $2,040 with 24-85mm lens

              Continuous shooting Shoots faster
              Low light performance Slightly lower noise at high ISO
              True resolution Much lower true resolution
              Shutter lag More shutter lag
              Nikon D600

              Nikon D600

              Pro DSLR

              $1,345 - $1,373 body only

              $1,550 with 50mm lens

              Continuous shooting Shoots faster
              Low light performance Slightly lower noise at high ISO
              True resolution Much lower true resolution
              Shutter lag More shutter lag

              appearance

              Canon Rebel T3i Nikon D800
              Canon Rebel T3i Nikon D800
              Canon Rebel T3i Nikon D800

              discussion

              Canon Rebel T3i
              Rebel T3i
              Canon

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              Nikon D800
              D800
              Nikon

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