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Head to head · Cameras

Alpha a7 III Mirrorless Camera vs Alpha a6400 Mirrorless Camera

Ravvy scores Alpha a7 III Mirrorless Camera at 90.23 and Alpha a6400 Mirrorless Camera at 89.12. Alpha a7 III Mirrorless Camera takes the overall pick, best for hybrid creators and event photographers seeking professional full-frame value.

Ravvy pick

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.

Sony Alpha a6400 Mirrorless Camera with 16-50mm Lens Black Base w/16-50mm Lens

$948

The Sony a6400 is the best choice for creators who prioritize reliable autofocus and portability, provided they can live without in-body image stabilization.

How they score

FactorAlpha a7 III Mirrorless CameraAlpha a6400 Mirrorless Camera
Battery Life88–
Image Quality92.5–
Autofocus Speed9498
Video Capability85–
Low Light Performance9178
Portability–94.5
Build Quality–85
Video Quality–88

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

Alpha a6400 Mirrorless Camera

What owners praise

  • Industry leading real-time eye autofocus and tracking
  • 180 degree tilting screen is perfect for vlogging
  • Compact and lightweight weather-sealed body
  • High quality 4K video with no recording time limit
  • Excellent battery life for a mirrorless camera

What to know first

  • No in-body image stabilization (IBIS)
  • Older menu system can be difficult to navigate
  • Included 16-50mm kit lens has average low-light performance

Skip it if professional videographers requiring in-body stabilization or dual card slots

Specs side by side

SpecAlpha a7 III Mirrorless CameraAlpha a6400 Mirrorless Camera
UPC027242910775027242932487
ASINB07B45D8WVB0DTFSLSTS
GTIN027242910775027242932487
Zoomoptical–
BrandSonySony
ColorBlackBlack
Bit Depth14 Bit14 Bit
Crop ModeFull-FrameAPS-C
HDMI TypeType D Micro HDMI–
Lens TypeZoomWide Angle
Focus ModeDirect Manual Focus (DMF)Automatic AF (AF-A), Continuous-Servo AF (AF-C), Manual Focus (MF), Single-Servo AF (AF-S)
Focus TypeopticalAuto Focus, Manual Focus

Other options in this category

DJI Osmo Pocket 3 Creator Combo, Vlogging Camera with 1'' CMOS & 4K/120fps
93.5

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
$499
Insta360 X5 Essentials Bundle - Waterproof 8K 360° Action Camera, Leading Low Light, Invisible Selfie Stick Effect, Rugged and Replaceable Lens, 3-Hour Battery, Built-in Wind Guard, Stabilization Midn
93.3

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
$660