• APS-C 332.3mm2
  • 18.0 megapixels
  • ISO 100 - 6400
  • APS-C 332.3mm2
  • 24.2 megapixels
  • ISO 100 - 25,600

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Differences

Canon T3i advantages over Canon T7i

  • Bigger pixels
    ~ 4.30 vs 3.72 microns
    Better low-light and dynamic range (all else equal)
  • More telephoto lens reach
    216 mm vs 88 mm
    Capture objects farther away with the kit lens

Canon T7i advantages over Canon T3i

  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Fast startup
    ~0.50 vs 1.5 sec
    Faster startup lets you catch the moment
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 600 vs 440 shots
    Capture more photos
  • More cross-type AF points
    45 vs 1
    Cross-type AF points improve autofocus performance
  • Newer
    8 years vs 14 years old
    Newer cameras often support more advanced features
  • Lighter weight
    747g vs 1031g
    Lighter weight
  • Less shutter lag
    0.09 vs 0.28 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    24.2 vs 18.0 megapixels
    Higher resolution photos
  • More AF points
    45 vs 9
    More AF points improve autofocus
  • Faster JPEG shooting
    6.0 fps vs 3.6 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    148 vs 9 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    6.0 fps vs 3.6 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    24 vs 5 shots
    Larger buffer for RAW shots (burst mode)
  • Higher extended ISO
    51200 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Tilt-swivel screen
    Both provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Pentaprism viewfinder
    Neither provide
    Much better viewfinder picture fidelity
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Buy the Canon T3i

Your purchases support this site

Buy the Canon T7i
Body Only
  • Body Only
  • Kit with 18-135mm lens
  • Kit with 18-55mm lens
All T7i Deals

Review Excerpt

  • Excellent image quality; Good grip; Full HD video recording; Swiveling LCD; Very fast autofocus; HDMI output.

  • Slow frame rate for sports shooting; Tendency to overexpose in bright sunlight; Live View AF is slow; No microfocus adjustment.

  • Read our Canon T3i Full Review

  • Very good image quality; Improved dynamic range & high ISO quality over T6i; 45-point AF system; Fast Dual Pixel CMOS AF; Improved buffer depth.

  • Default JPEGs slightly soft straight out of camera; Dynamic range & high ISO still lags behind competitors; No 4K video.

  • Read our Canon T7i Express Review

The Competition

Compared to Nikon D7000

Canon T3i
Nikon D7000
  • $549
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $699
  • APS-C
  • Larger sensor
  • Fast startup

Compare Canon T3i vs Nikon D7000

Canon T7i
Nikon D7000
  • $700
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $699
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Canon T7i vs Nikon D7000

Compared to Pentax K-5

Canon T3i
Pentax K-5
  • $549
  • APS-C
  • Tilt-swivel screen
  • More telephoto lens reach
  • $800
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compare Canon T3i vs Pentax K-5

Canon T7i
Pentax K-5
  • $700
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $800
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compare Canon T7i vs Pentax K-5

Compared to Canon T4i

Canon T3i
Canon T4i
  • $549
  • APS-C
  • $690
  • APS-C
  • Touchscreen
  • Fast startup

Compare Canon T3i vs Canon T4i

Canon T7i
Canon T4i
  • $700
  • APS-C
  • Fast startup
  • Built-in Wi-Fi
  • $690
  • APS-C
  • Less expensive
  • Bigger pixels

Compare Canon T7i vs Canon T4i

Compared to Canon T6i

Canon T3i
Canon T6i
  • $549
  • APS-C
  • Bigger pixels
  • More telephoto lens reach
  • $699
  • APS-C
  • Touchscreen
  • Fast startup

Compare Canon T3i vs Canon T6i

Canon T7i
Canon T6i
  • $700
  • APS-C
  • Fast startup
  • Built-in Bluetooth
  • $699
  • APS-C
  • Less expensive
  • Bigger JPEG buffer

Compare Canon T7i vs Canon T6i

Compared to Pentax KP

Canon T3i
Pentax KP
  • $549
  • APS-C
  • Tilt-swivel screen
  • HDMI out
  • $999
  • APS-C
  • Focus peaking
  • Larger sensor

Compare Canon T3i vs Pentax KP

Canon T7i
Pentax KP
  • $700
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $999
  • APS-C
  • Focus peaking
  • Larger sensor

Compare Canon T7i vs Pentax KP

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