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Canon 5D Mark IV · Body only — full-frame DSLR · 2016
Canon

Canon 5D Mark IV · Body only

full-frame DSLR · 2016

85
/ 100
From $3,499
VS
Sony FX3 wins by 5
Sony FX3 — full-frame · 2021
Sony

Sony FX3

full-frame · 2021

90
/ 100
From $3,898
Specdex verdict

Sony FX3 takes it — here’s why.

In our weighted Specdex score, Canon 5D Mark IV · Body only lands at 85 and Sony FX3 at 90. That puts Sony FX3 ahead by 5 points — a decisive margin driven mostly by its strengths in the categories below.

Pick Canon 5D Mark IV · Body only if…

  • ✓Mature system, great used market
  • ✓Proven lens lineup
  • ✓Often on sale

Pick Sony FX3 if…

  • ✓Current-gen AF system
  • ✓Proven lens ecosystem
  • ✓Strong video + stills balance
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Winner by scenario

Derived from the sub-score breakdown · not a separate test

Photo

Sony FX3

Compared on the photo sub-score

Sony FX3 leads on photo (90 vs 85).

Ergonomics

Tie

Compared on the ergonomics sub-score

Effectively tied — neither pulls a 2-point weighted lead.

Autofocus

Sony FX3

Compared on the autofocus sub-score

Sony FX3 leads on autofocus (88 vs 81).

Value for money

Tie

Specdex score per dollar at MSRP

Effectively tied — similar score-per-dollar at MSRP.

Canon 5D Mark IV · Body only 85
vs
90 Sony FX3

Score breakdown

Canon 5D Mark IV · Body only
85
photo 85
video 77
autofocus 81
ergonomics 86
Sony FX3
90
photo 90
video 86
autofocus 88
ergonomics 86

Specs side-by-side

Canon 5D Mark IV · Body only versus Sony FX3 — full spec comparison
Spec Canon 5D Mark IV · Body only Sony FX3
Format
full-frame DSLR
full-frame
Release year
2016
2021

Canon 5D Mark IV · Body only

Pros
  • +Mature system, great used market
  • +Proven lens lineup
  • +Often on sale
Cons
  • −Older AF system
  • −Heavier than modern mirrorless
  • −Firmware updates trailed off

Sony FX3

Pros
  • +Current-gen AF system
  • +Proven lens ecosystem
  • +Strong video + stills balance
Cons
  • −Body price excludes lens
  • −Heavy for travel (flagship)
  • −Learning curve on menus

FAQ: Canon 5D Mark IV · Body only vs Sony FX3

Which is better, Canon 5D Mark IV · Body only or Sony FX3? +

Sony FX3 scores 90 on our weighted rubric — ahead by 5. Your best pick depends on the sub-scores above.

Is Canon 5D Mark IV · Body only worth the price? +

At $3,499, Canon 5D Mark IV · Body only delivers a Specdex score of 85 — strongest in ergonomics.

Is Sony FX3 worth the price? +

At $3,898, Sony FX3 delivers a Specdex score of 90 — strongest in photo.

Does Canon 5D Mark IV · Body only or Sony FX3 last longer? +

Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.

Which is better for photo, Canon 5D Mark IV · Body only or Sony FX3? +

Sony FX3 — leads on photo (90 vs 85). Compared on the photo sub-score.

Which is better for autofocus, Canon 5D Mark IV · Body only or Sony FX3? +

Sony FX3 — leads on autofocus (88 vs 81). Compared on the autofocus sub-score.