Fujifilm
X-Pro3
Rangefinder-style APS-C for documentary and street photographers.
$1,799
Released Oct 2019
Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Released Oct 2021
Alpha 7 IV is 2 years newer.
Wins
X-Pro3
Wins
Alpha 7 IV
2 categories tied
TL;DR — Key differences
- BAlpha 7 IV has higher IBIS effectiveness (5.5 stops vs 0 stops)
- BAlpha 7 IV has higher RAW buffer depth (828 frames vs 17 frames)
- BAlpha 7 IV has higher ISO max (native) (51,200 vs 12,800)
- AX-Pro3 has higher Burst (electronic) (30 fps vs 10 fps)
- BAlpha 7 IV has higher Max video bit rate (600 Mbps vs 200 Mbps)
Key specs at a glance
Size and weight, to scale
X-Pro3
141 × 83 × 46 mm
497 g (1.10 lb / 17.53 oz)
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
X-Pro3 is 14mm shorter and 34mm thinner than Alpha 7 IV but it is also 9mm wider.
X-Pro3 is 161 g lighter than Alpha 7 IV.
Depth (front-to-back): 46mm X-Pro3 · 80mm Alpha 7 IV
Sensor size, to scale
X-Pro3
23.5 × 15.6 mm · APS-C
367 mm² area
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
2.3× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
X-Pro3
Fujifilm X
105+
native lenses available
Alpha 7 IV
✓ more lensesSony E
350+
native lenses available
Counts include current first-party and major third-party native autofocus lenses.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose
X-Pro3
AF low-light limit
-6 EV vs -4 EV — lower is better
Dimensions (W×H×D mm)
Adds 140.5, 82.8, 46.1
Burst (electronic)
30 fps vs 10 fps — higher is better
Pre-Capture / Pre-Release
Only X-Pro3 supports it
Weight
497 g vs 658 g — lower is better
Burst (mechanical)
11 fps vs 10 fps — higher is better
AF frame coverage
100 % vs 94 % — higher is better
EVF resolution
3,690,000 vs 3,686,400 — higher is better
Reasons to choose
Alpha 7 IV
Subject recognition
Adds Human, Animal, Bird…
IBIS effectiveness
5.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
RAW buffer depth
828 frames vs 17 frames — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
ISO max (native)
51,200 vs 12,800 — higher is better
Max video bit rate
600 Mbps vs 200 Mbps — higher is better
AA filter
Only Alpha 7 IV supports it
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 2
- ✓EVF refresh rate — Both 120 Hz
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
X-Pro3
Pros
- ✓Hybrid viewfinder
- ✓Weather sealed
- ✓Classic design
Cons
- –Hidden rear screen divisive
- –26MP
- –Superseded
Alpha 7 IV
Pros
- ✓33MP — more detail for cropping and print
- ✓10-bit 4K 60p (Super35 crop) / 4K 30p full-frame
- ✓Full-size HDMI port
- ✓759 phase-detect AF points
Cons
- –4K 60p requires Super35 crop
- –10fps burst lags behind R6 II at 40fps
- –Complex menu system
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, X-Pro3 or Alpha 7 IV?
Alpha 7 IV scores 7.5/10 versus 3.5/10 for X-Pro3 — 4K recording.
What's the resolution difference between the X-Pro3 and Alpha 7 IV?
X-Pro3 is 26.1 MP and Alpha 7 IV is 33 MP, so the Alpha 7 IV captures more detail for cropping and large prints.
Do the X-Pro3 and Alpha 7 IV have in-body image stabilization?
X-Pro3 does not have IBIS, while alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the X-Pro3 or the Alpha 7 IV?
X-Pro3 reaches 30 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the X-Pro3 and Alpha 7 IV?
X-Pro3 weighs 497 g and Alpha 7 IV weighs 658 g, so the X-Pro3 is 161 g lighter.
Do the X-Pro3 and Alpha 7 IV record 4K video?
X-Pro3: 4K up to 30p. Alpha 7 IV: 4K up to 60p.
Are the X-Pro3 and Alpha 7 IV weather sealed?
X-Pro3: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 370 shots (CIPA) for the X-Pro3 and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.
How much does each cost?
X-Pro3 launched at $1,799 and Alpha 7 IV at $2,499. The X-Pro3 is $700 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Fujifilm and Sony press materials.