Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Released Oct 2021
Sony
FX2
Compact full-frame cinema camera with 4K 120p, S-Cinetone, and active cooling.
$2,499
Released Feb 2025
FX2 is 3.3 years newer.
Wins
Alpha 7 IV
Wins
FX2
13 categories tied
TL;DR — Key differences
- AAlpha 7 IV has higher RAW buffer depth (828 frames vs 120 frames)
- AAlpha 7 IV has higher Max video bit rate (600 Mbps vs 200 Mbps)
- BFX2 has higher Battery life (CIPA) (640 shots vs 580 shots)
- AAlpha 7 IV has lower Weight (658 g vs 720 g)
- BFX2 has higher EVF resolution (3,690,000 vs 3,686,400)
Key specs at a glance
Size and weight, to scale
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
FX2
138 × 98 × 88 mm
720 g (1.59 lb / 25.40 oz)
Alpha 7 IV is 7mm narrower, 2mm shorter, and 8mm thinner than FX2.
Alpha 7 IV is 62 g lighter than FX2.
Depth (front-to-back): 80mm Alpha 7 IV · 88mm FX2
Sensor size, to scale
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
FX2
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
Alpha 7 IV
✓ more lensesSony E
350+
native lenses available
FX2
✓ 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
Alpha 7 IV
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
RAW buffer depth
828 frames vs 120 frames — higher is better
Max video bit rate
600 Mbps vs 200 Mbps — higher is better
Weight
658 g vs 720 g — lower is better
Reasons to choose
FX2
Dimensions (W×H×D mm)
Adds 138, 98, 88
Battery life (CIPA)
640 shots vs 580 shots — higher is better
EVF resolution
3,690,000 vs 3,686,400 — higher is better
Both cameras share
- ✓Resolution — Both 33 MP
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓ISO max (native) — Both 51,200
- ✓AF points / zones — Both 759
- ✓AF frame coverage — Both 94 %
Pros & cons at a glance
Editorially curated highlights and trade-offs.
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
FX2
Pros
- ✓4K 120p
- ✓S-Cinetone / S-Log3
- ✓Compact cinema body
- ✓Active cooling
Cons
- –No EVF
- –Photo ergonomics limited
- –Premium price
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for vlogging, Alpha 7 IV or FX2?
Alpha 7 IV scores 8.0/10 versus 5.5/10 for FX2 — Fully articulating screen — see yourself while filming.
What's the resolution difference between the Alpha 7 IV and FX2?
Both cameras share the same 33 MP resolution.
Do the Alpha 7 IV and FX2 have in-body image stabilization?
Alpha 7 IV has 5.5-stop in-body image stabilization, while fX2 has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the Alpha 7 IV or the FX2?
Alpha 7 IV reaches 10 fps electronic. FX2 reaches 10 fps electronic.
What's the weight difference between the Alpha 7 IV and FX2?
Alpha 7 IV weighs 658 g and FX2 weighs 720 g, so the Alpha 7 IV is 62 g lighter.
Do the Alpha 7 IV and FX2 record 4K video?
Alpha 7 IV: 4K up to 60p. FX2: 4K up to 60p.
Are the Alpha 7 IV and FX2 weather sealed?
Alpha 7 IV: Yes. FX2: Yes.
Which has better battery life?
Rated battery life is 580 shots (CIPA) for the Alpha 7 IV and 640 shots for the FX2, giving the FX2 the edge.
How much does each cost?
Both launched at $2,499.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Sony press materials.