Canon
EOS R5 Mark II
45MP stacked-sensor powerhouse with 8K 60p RAW internal and 30fps burst.
$4,299
Released Jul 2024
Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Released Oct 2021
EOS R5 Mark II is 2.7 years newer.
Wins
EOS R5 Mark II
Wins
Alpha 7 IV
4 categories tied
TL;DR — Key differences
- AEOS R5 Mark II has higher Max video bit rate (2600 Mbps vs 600 Mbps)
- AEOS R5 Mark II has higher Burst (electronic) (30 fps vs 10 fps)
- AEOS R5 Mark II has higher 4K max frame rate (120 fps vs 60 fps)
- BAlpha 7 IV has higher Battery life (CIPA) (580 shots vs 320 shots)
- AEOS R5 Mark II has higher EVF resolution (5,760,000 vs 3,686,400)
Key specs at a glance
Size and weight, to scale
EOS R5 Mark II
138 × 101 × 94 mm
746 g (1.64 lb / 26.31 oz)
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
EOS R5 Mark II is 7mm wider, 5mm taller, and 14mm thicker than Alpha 7 IV.
EOS R5 Mark II is 88 g heavier than Alpha 7 IV.
Depth (front-to-back): 94mm EOS R5 Mark II · 80mm Alpha 7 IV
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R5 Mark II
138 × 101 mm
Alpha 7 IV
131 × 96 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS R5 Mark II
138 × 94 mm
Alpha 7 IV
131 × 80 mm
Sensor size, to scale
EOS R5 Mark II
36 × 24 mm · Full Frame
864 mm² area
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
EOS R5 Mark II
Canon RF
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
The verdict
The $1,800 price gap separates a high-speed professional powerhouse from a versatile enthusiast hybrid, primarily defined by the Canon's 45MP stacked sensor performance versus the Sony's 33MP standard BSI sensor technology.
Choose Canon EOS R5 Mark II if you require elite speed and resolution for action or video production, as it delivers 30fps electronic bursts and 8K DCI raw video capabilities.
Choose Sony Alpha 7 IV if you prioritize value and battery endurance for long shooting days, benefiting from a superior 610-shot CIPA rating and a significantly lower entry price point.
Why pick one over the other
Reasons to choose
EOS R5 Mark II
AF low-light limit
-6.5 EV vs -4 EV — lower is better
Subject recognition
Adds People, Dogs, Cats…
Dimensions (W×H×D mm)
Adds 138.4, 101.2, 93.5
Max video bit rate
2600 Mbps vs 600 Mbps — higher is better
Burst (electronic)
30 fps vs 10 fps — higher is better
Codecs
Adds RAW, XF-HEVC S, XF-AVC S
Pre-Capture / Pre-Release
Only EOS R5 Mark II supports it
4K max frame rate
120 fps vs 60 fps — higher is better
Reasons to choose
Alpha 7 IV
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
Card types
Adds CFexpress Type A
Battery life (CIPA)
580 shots vs 320 shots — higher is better
RAW buffer depth
828 frames vs 600 frames — higher is better
Weight
658 g vs 746 g — lower is better
EVF magnification
0.78 × vs 0.76 × — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓ISO max (native) — Both 51,200
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Internal RAW video — Both support internal raw video
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R5 Mark II
Pros
- ✓45MP stacked CMOS — speed and resolution
- ✓8K 60p RAW internal recording
- ✓30fps electronic burst at full 45MP
- ✓5.76M dot EVF
Cons
- –Premium $4,299 price
- –Short battery life (320 CIPA shots)
- –Body heat in extended 8K sessions
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 sports, EOS R5 Mark II or Alpha 7 IV?
EOS R5 Mark II scores 9.5/10 versus 6.0/10 for Alpha 7 IV — 30fps burst — pro-level action capture.
What's the resolution difference between the EOS R5 Mark II and Alpha 7 IV?
EOS R5 Mark II is 45 MP and Alpha 7 IV is 33 MP, so the EOS R5 Mark II captures more detail for cropping and large prints.
Do the EOS R5 Mark II and Alpha 7 IV have in-body image stabilization?
EOS R5 Mark II has 8.5-stop in-body image stabilization, while alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R5 Mark II or the Alpha 7 IV?
EOS R5 Mark II reaches 30 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the EOS R5 Mark II and Alpha 7 IV?
EOS R5 Mark II weighs 746 g and Alpha 7 IV weighs 658 g, so the Alpha 7 IV is 88 g lighter.
Do the EOS R5 Mark II and Alpha 7 IV record 4K video?
EOS R5 Mark II: 8K RAW (max), 4K up to 120p. Alpha 7 IV: 4K up to 60p.
Are the EOS R5 Mark II and Alpha 7 IV weather sealed?
EOS R5 Mark II: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 320 shots (CIPA) for the EOS R5 Mark II and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.
How much does each cost?
EOS R5 Mark II launched at $4,299 and Alpha 7 IV at $2,499. The Alpha 7 IV is $1,800 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Canon and Sony press materials.