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Head to head · Cameras

Alpha 7 IV Full-frame Mirrorless vs Alpha a7 III Mirrorless Camera

Ravvy scores Alpha 7 IV Full-frame Mirrorless at 93.3 and Alpha a7 III Mirrorless Camera at 90.23. Alpha 7 IV Full-frame Mirrorless takes the overall pick, best for hybrid shooters who need high-resolution stills and professional 10-bit video..

Ravvy pick

Sony Alpha 7 IV Full-frame Mirrorless Interchangeable Lens Camera Body Only

$1,998

This is the definitive choice for hybrid creators who need a professional blend of 33MP high-resolution stills and 10-bit video, provided they can overlook the crop factor at high frame rates.

Sony Alpha a7 III Mirrorless Camera with 28-70mm Lens Black w/ 28-70mm Base

$1,598

Buy the a7 III if you want the best price-to-performance ratio in full-frame photography and can live with a tilting screen instead of a flip-out one.

How they score

FactorAlpha 7 IV Full-frame MirrorlessAlpha a7 III Mirrorless Camera
Image Quality94.292.5
Value for Money86.5–
Build Ergonomics91–
Video Versatility89.5–
Autofocus Performance98–
Battery Life–88
Autofocus Speed–94
Video Capability–85
Low Light Performance–91

Alpha 7 IV Full-frame Mirrorless

What owners praise

  • Superb 33MP sensor balances resolution and noise
  • Industry-leading Real-time Eye AF for humans and animals
  • High-quality 10-bit 4:2:2 internal video recording
  • Dual card slots supporting CFexpress Type A
  • Improved menu system and ergonomics over previous models

What to know first

  • Significant crop factor when shooting 4K 60p video
  • Rolling shutter can be visible during very fast pans
  • Rear LCD resolution is lower than some competitors

Skip it if action cinematographers requiring uncropped 4k 60p footage

Alpha a7 III Mirrorless Camera

What owners praise

  • Excellent 15-stop dynamic range
  • Superb 693-point hybrid autofocus
  • Dual SD card slots for instant backup
  • Significantly improved Z-battery life
  • Internal 4K video with S-Log support

What to know first

  • LCD screen only tilts and does not flip
  • Menu system is dense and complex
  • Weather sealing is moderate not extreme

Skip it if vloggers who require a fully articulating flip-out screen

Specs side by side

SpecAlpha 7 IV Full-frame MirrorlessAlpha a7 III Mirrorless Camera
UPC027242923577027242910775
ASINB09JZT6YK5B07B45D8WV
GTIN027242923577027242910775
ZoomOptical Zoomoptical
BrandSonySony
ColorBlackBlack
Bit Depth14 Bit14 Bit
Crop ModeFull-FrameFull-Frame
HDMI TypeType A Standard HDMIType D Micro HDMI
Lens TypeWide AngleZoom
Focus ModeContinuous-Servo AF (AF-C), Direct Manual Focus (DMF), Manual Focus (MF), Single-Servo AF (AF-S)Direct Manual Focus (DMF)
Focus Typemanual-and-autooptical

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Best for professional vloggers and travel content creators who need cinematic quality in a pocketable form factor.

  • 4K/120fps Slow Motion
  • 10-bit D-Log M Color
  • Integrated 3-Axis Gimbal
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Best for adventure content creators and professional videographers who need high-res reframing

  • Dual 1/1.28 inch High-Performance Sensors
  • 49ft Waterproofing without a case
  • Triple AI Chip for Advanced Noise Reduction
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