Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Launch priceReleased Oct 2021
Xtra
Atto
Ultra-compact 54g wearable action camera with 1/1.3-inch sensor, 4K/60fps, 143° FOV, 128GB internal storage, and 220-min battery with Vision Dock.
$299
Launch priceReleased Jan 2026
Atto is 4.3 years newer.
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Wins
Alpha 7 IV
Wins
Atto
2 categories tied
Which would you choose?
TL;DR — Key differences
- AAlpha 7 IV has higher AF points / zones (759 vs 0)
- AAlpha 7 IV has higher Card slots (2 vs 0)
- BAtto has lower Weight (54 g vs 658 g)
- AAlpha 7 IV has higher ISO max (native) (51,200 vs 6,400)
- BAtto has higher Battery life (CIPA) (640 shots vs 580 shots)
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
Alpha 7 IV is 604 g heavier than Atto.
Depth (front-to-back): 80mm Alpha 7 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
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
Sensor size, to scale
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
Atto
9.6 × 7.2 mm · Compact
69 mm² area
12.4× 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
Atto: 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
AF points / zones
759 vs 0 — higher is better
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
Card slots
2 vs 0 — higher is better
Card types
Adds CFexpress Type A, SD UHS-II
ISO max (native)
51,200 vs 6,400 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
AA filter
Only Alpha 7 IV supports it
Reasons to choose
Atto
Stabilization modes
Adds MotionMaster, TiltGuard
Card types
Adds microSD (via Vision Dock)
Weight
54 g vs 658 g — lower is better
Pre-Capture / Pre-Release
Only Atto supports it
Battery life (CIPA)
640 shots vs 580 shots — higher is better
IBIS effectiveness
6 stops vs 5.5 stops — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓4K max frame rate — Both 60 fps
- ✓Weather sealing — Both support weather sealing
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both support bluetooth
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
Atto
Pros
- ✓54g lightest in class
- ✓220 min with Vision Dock
- ✓128GB built-in + 600MB/s transfer
- ✓5-min pre-recording
Cons
- –No built-in screen
- –4K/60fps 16:9 only
- –10m waterproof (no case)
Decided which one is right for you?
Compare live prices for the Alpha 7 IV and Atto at major authorized retailers.
Sony Alpha 7 IV
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for portraits, Alpha 7 IV or Atto?
Alpha 7 IV scores 9.0/10 versus 1.0/10 for Atto — 33MP — ample resolution for portraits.
Do the Alpha 7 IV and Atto have in-body image stabilization?
Alpha 7 IV has 5.5-stop in-body image stabilization, while Atto uses Electronic stabilization (MotionMaster + TiltGuard) (electronic).
What's the weight difference between the Alpha 7 IV and Atto?
Alpha 7 IV weighs 658 g and Atto weighs 54 g, so the Atto is 604 g lighter.
Do the Alpha 7 IV and Atto record 4K video?
Alpha 7 IV: 4K up to 60p. Atto: 4K up to 60p.
Are the Alpha 7 IV and Atto weather sealed?
Alpha 7 IV: Yes. Atto: Yes.
Which has better battery life?
Rated battery life is 580 shots (CIPA) for the Alpha 7 IV and 640 shots for the Atto, giving the Atto the edge.
How much does each cost?
Alpha 7 IV launched at $2,499 and Atto at $299. The Atto is $2,200 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Alpha 7 IV vs Atto vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Sony and Xtra press materials.