Sony a6400 vs Sony a7 III

102 facts in comparison

Based on 1,950 Reddit opinions. Close raceβ€”Sony a6400 edges ahead.

1.9K opinions
Sony a6400 leads by 1pts
Reddit's Pick
Sony a6400
79%
B
Based on
2,268 Redditors
Winner

Sony a6400

~$1,198
658 opinions

tldr; The value APS-C. Great autofocus, reliable. Still recommended.

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VS
Sony a7 III
78%
B
Based on
3,509 Redditors

Sony a7 III

~$1,698
1,292 opinions

tldr; The camera that changed everything. 24.5MP full-frame, excellent AF, 10fps, 4K video. Still the benchmark for value full-frame.

Check prices
AutofocusImage QualityVideoErgonomicsBattery Life
🎯AUT
πŸ–ΌοΈIMA
🎬VID
βœ‹ERG
πŸ”‹BAT
65
Points
67
Points

Score by Category

Autofocus
89%60%
Image Quality
63%81%
Video
51%44%
Ergonomics
62%53%
Battery Life
29%77%

Why is Sony a7 III better than Sony a6400?

  • Better image quality (81% vs 63%)
  • Better battery (77% vs 29%)
  • Legendary value FF
  • 24.5MP BSI sensor
  • 693-point phase-detect AF
Based on 5,777 Reddit opinions
Too Close to Call

Reddit prefers the Sony a6400

Winning by 1 points (79% vs 78%)

Better ergonomics
Better value
Better autofocus
High confidence (5,777 mentions)

πŸ’¬Reddit Sentiment

Based on 5,777 Reddit mentions

Overall Rating

Sony a6400
7.9/10
2,268 mentions
a7 III
7.8/10
3,509 mentions
ERGONOMICS
Sony a64006.2/10
a7 III5.3/10
IMAGE QUALITY
Sony a64006.3/10
a7 III8.1/10
VALUE
Sony a64009.5/10
a7 III8.4/10
AUTOFOCUS
Sony a64008.9/10
a7 III6.0/10
BATTERY LIFE
Sony a64002.9/10
a7 III7.7/10
VIDEO
Sony a64005.1/10
a7 III4.4/10
βš”οΈ

Head to Head

Head to Head

Sony a6400: 4|a7 III: 2
ErgonomicsSony a6400
Sony a640062%
a7 III53%
Image Qualitya7 III
Sony a640063%
a7 III81%
ValueSony a6400
Sony a640095%
a7 III84%
AutofocusSony a6400
Sony a640089%
a7 III60%
Battery Lifea7 III
Sony a640029%
a7 III77%
VideoSony a6400
Sony a640051%
a7 III44%
Sony a640079%
a7 III78%
Close race - Sony a6400 edges ahead by 1 points

Key Specs

SpecSony a6400Sony a7 III
Sensor
24.2 MP APS-C Exmor CMOS
β€”
Autofocus
425 phase-detection and 425 contrast-detection AF points
β€”
Continuous Shooting
11 fps
β€”
Iso Range
100-32000 (expandable to 102400)
β€”
Video Resolution
4K at 30fps
β€”

Key Highlights

Sony a6400
πŸ’° Great value
🎯 Excellent AF
🎬 Good video
πŸ‘ Still solid
Sony a7 IIIWinner
πŸ† Legendary value FF
πŸ“Έ 24.5MP BSI sensor
🎯 693-point phase-detect AF
πŸ’° Sweet spot used ($1000-1200)

Topic Battles

Sony a6400: 3|Tied: 0|a7 III: 2
🎯Autofocus
Sony a6400 wins
Sony a6400
89%
a7 III
60%
πŸ–ΌοΈImage Quality
a7 III wins
Sony a6400
63%
a7 III
81%
🎬Video
Sony a6400 wins
Sony a6400
51%
a7 III
44%
βœ‹Ergonomics
Sony a6400 wins
Sony a6400
62%
a7 III
53%
πŸ”‹Battery Life
a7 III wins
Sony a6400
29%
a7 III
77%

Based on Reddit sentiment across 5 categories

πŸ“ˆWhere They Rank

πŸ’¬What Redditors Actually Say

What Redditors Say

Best praise vs top criticism for Sony a6400

Best Praise
+82 pts
β€œI recommend learning the exposure triangle, basic composition, and most importantly what many people dont mention is post editing. The 6400 is a very capable camera of taking stunning pictures. Also are you only using the kit lens? Id also graba 50mm 1.8 for portraits and to get some nice backround seperation.”
r/SonyAlpha
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Top Criticism
+24 pts
β€œPretty sure the A6400 has the same menu system and no IBIS, so it isn’t going to address the issues you’re having with the A6000.”
r/SonyAlpha
View
3 more quotes available below

What Redditors Say

Best praise vs top criticism for Sony a7 III

Best Praise
+72 pts
β€œThe A7III is indeed a good start into videography. 5k oversampled 4k, IBIS (in body image stabilization) and extremely good low light capabilities are a neat package. Sony offers a bunch of free LUTs that’ll help him tremendously when it comes to color grading (which represents the only shortfall of the A7III since it only records 8-bit footage). Add the dual SD-Card slots. When it comes to videography, β€œcheap” isn’t a word that’s usually associated with it. Everything costs tremendously. And if you compare prices (and capabilities) between a full frame camera like the A7III and other crop sensor cameras (Sony has some with IBIS, I think the A6500 is one?), the A7III comes almost always out on top. Used it can be had for $800-$900 for a fairly good condition one at almost all retailers that offer used gear. When it comes to lenses, full frame lenses are always more expensive than their APS-C counterparts. A good starting point would be something like a Tamron 28-75 f/2.8. New $699, used around $450. Overall, as a package, expensive, yes. But I strongly believe we need to foster our kids interests to give them the right start. And yes, that usually comes with a lot of hard earned dollars spend. The A7III was just on sale during black Friday for around $1,000 new which is an insane price for its capabilities, still so many years after release. I realize I’m playing the devil’s advocate here but running 2 A7III’s myself for my hybrid business and dabbling in film making, I strongly advocate for this camera. Are there better cameras out there? Sure, if you have a bunch of kidneys to sell. Comparable ones that are cheaper? Hardly. The A7III was the camera that changed the market and probably the first that was good at both, photography and videography, all in one weather resistant package with amazing battery runtime. Another benefit of the Sony E-Mount system is the virtually endless choice of lens options. Since others already mentioned the A6400, I ran that one as a gimbal camera. And I didn’t like it. Especially the noise it produced. And the batteries are fairly small, so I personally wouldn’t recommend it, even if it produces sharp 4k footage. But that’s just my take.”
r/SonyAlpha
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Top Criticism
+12 pts
β€œIf he is into film not photography. a7iii isn’t the best deal out there. Sony ZV-10 is more of a video camera for beginner.”
r/SonyAlpha
View
3 more quotes available below

πŸ“ˆHistorical Price Data

Sony a6400
Sony a7 III
$1200$1600$2000May '25Jul '25Aug '25Sep '25Nov '25Dec '25Dec '25Feb '26Mar '26May '26Low: $948Low: $1498
Sony a6400
All-time low: $848(2025-04)
Sony a7 III
All-time low: $1298(2023-12)

Which is Better?

Too Close to Call

Both products have nearly identical approval ratings (79% vs 78%). Choose based on your specific needs and preferences.

Why Sony a6400
  • Better Value for Money (95% vs 84%)
Why a7 III
  • πŸ† Legendary value FF
  • πŸ“Έ 24.5MP BSI sensor
  • More discussed (3,509 vs 2,268)

❀️The Love/Hate Breakdown

Sentiment Breakdown

23%Positive
Positive
23%
Neutral
71%
Negative
6%
Based on 2,268 Reddit opinions

Sentiment Breakdown

29%Positive
Positive
29%
Neutral
63%
Negative
8%
Based on 3,509 Reddit opinions

Frequently Asked Questions

Which is better, Sony a6400 or Sony a7 III?
Based on 5,777 Reddit comments, Sony a6400 has a slight edge with 79% positive sentiment vs Sony a7 III's 78%. The difference is small, so both are solid choices.
Should I buy Sony a6400 or Sony a7 III?
Both have similar approval ratings (79% vs 78%), so focus on specific features, pricing, and what matters most to you.
What do Redditors love about Sony a6400?
Reddit users highlight: Great value. Excellent AF. Good video. With 2,268 mentions and 79% approval, it's a well-regarded choice in the community.
What do Redditors say about Sony a7 III?
Reddit users highlight: Legendary value FF. 24.5MP BSI sensor. 693-point phase-detect AF. With 3,509 mentions and 78% approval, it remains a popular alternative.
How many Reddit reviews were analyzed?
This comparison analyzed 5,777 Reddit comments: 2,268 about Sony a6400 and 3,509 about Sony a7 III. Data was sourced from Sony Cameras community discussions.
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Well-discussed products with many mentions tend to have more reliable scores than niche items with fewer data points.
Why trust Reddit over professional reviews?
Reddit users bought products with their own money and have no incentive to mislead. You're seeing hundreds of real opinions across different use cases, not just one reviewer's take. This crowdsourced approach surfaces both common praise and recurring complaints.

1,950 Reddit opinions analyzed Β· Last updated 5/19/2026