Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Launch priceReleased Oct 2021
Sony
RX10 IV
1-inch bridge with 24–600mm f/2.4–4 zoom, 24fps AF tracking, and pro video features.
$1,699
Launch priceReleased Sep 2017
Alpha 7 IV is 4.1 years newer.
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Wins
Alpha 7 IV
Wins
RX10 IV
4 categories tied
Which would you choose?
TL;DR — Key differences
- AAlpha 7 IV has higher ISO max (native) (51,200 vs 12,800)
- AAlpha 7 IV has higher Max video bit rate (600 Mbps vs 150 Mbps)
- AAlpha 7 IV has higher RAW buffer depth (828 frames vs 249 frames)
- BRX10 IV has higher Burst (mechanical) (24 fps vs 10 fps)
- AAlpha 7 IV has higher 4K max frame rate (60 fps vs 29.97 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
Credit card
85.6 × 54 mm
for scale
RX10 IV
133 × 94 × 145 mm
1095 g (2.41 lb / 38.63 oz)
Alpha 7 IV is 1mm narrower and 65mm thinner than RX10 IV but it is also 2mm taller.
Alpha 7 IV is 437 g lighter than RX10 IV.
Depth (front-to-back): 80mm Alpha 7 IV · 145mm RX10 IV
Back view, to scale
Width × Height — same proportions as the front of the body.
Alpha 7 IV
131 × 96 mm
Credit card
85.6 × 54 mm
RX10 IV
133 × 94 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Alpha 7 IV
131 × 80 mm
Credit card
85.6 × 54 mm
RX10 IV
133 × 145 mm
Sensor size, to scale
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
RX10 IV
13.2 × 8.8 mm · 1-inch
116 mm² area
7.4× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Alpha 7 IV
✓ more lensesSony E
350+
native lenses available
RX10 IV: mount data unavailable
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
Card types
Adds CFexpress Type A, SD UHS-II
Codecs
Adds XAVC HS, XAVC S-I, H.265…
ISO max (native)
51,200 vs 12,800 — higher is better
Max video bit rate
600 Mbps vs 150 Mbps — higher is better
RAW buffer depth
828 frames vs 249 frames — higher is better
4K max frame rate
60 fps vs 29.97 fps — higher is better
Subject recognition
Adds Insect, Car/Train, Airplane
Reasons to choose
RX10 IV
Dimensions (W×H×D mm)
Adds 132.5, 94, 145
Card types
Adds SD, SDHC, SDXC…
Codecs
Adds AVCHD, MP4
Burst (mechanical)
24 fps vs 10 fps — higher is better
Pre-Capture / Pre-Release
Only RX10 IV supports it
Burst (electronic)
15 fps vs 10 fps — higher is better
Subject recognition
Adds Vehicle
IBIS effectiveness
6 stops vs 5.5 stops — higher is better
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓AF points / zones — Both 759
- ✓AF frame coverage — Both 94 %
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
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
RX10 IV
Pros
- ✓24–600mm reach
- ✓24fps with AF
- ✓Weather sealed
- ✓Strong all-in-one travel camera
Cons
- –1-inch sensor
- –Large bridge body
- –Expensive for sensor size
Decided which one is right for you?
Compare live prices for the Alpha 7 IV and RX10 IV at major authorized retailers.
Sony Alpha 7 IV
Sony RX10 IV
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, Alpha 7 IV or RX10 IV?
Alpha 7 IV scores 9.0/10 versus 4.0/10 for RX10 IV — 33MP — ample resolution for portraits.
What's the resolution difference between the Alpha 7 IV and RX10 IV?
Alpha 7 IV is 33 MP and RX10 IV is 20.1 MP, so the Alpha 7 IV captures more detail for cropping and large prints.
Do the Alpha 7 IV and RX10 IV have in-body image stabilization?
Alpha 7 IV has 5.5-stop in-body image stabilization, while RX10 IV has 6-stop in-body image stabilization.
Which shoots faster bursts — the Alpha 7 IV or the RX10 IV?
Alpha 7 IV reaches 10 fps electronic. RX10 IV reaches 24 fps mechanical.
What's the weight difference between the Alpha 7 IV and RX10 IV?
Alpha 7 IV weighs 658 g and RX10 IV weighs 1095 g, so the Alpha 7 IV is 437 g lighter.
Do the Alpha 7 IV and RX10 IV record 4K video?
Alpha 7 IV: 4K up to 60p. RX10 IV: 4K up to 29.97p.
Are the Alpha 7 IV and RX10 IV weather sealed?
Alpha 7 IV: Yes. RX10 IV: Yes.
Which has better battery life?
Rated battery life is 580 shots (CIPA) for the Alpha 7 IV and 370 shots for the RX10 IV, giving the Alpha 7 IV the edge.
How much does each cost?
Alpha 7 IV launched at $2,499 and RX10 IV at $1,699. The RX10 IV is $800 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Alpha 7 IV vs RX10 IV vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Sony press materials.