Upgrade Guide

Sony A6600→Sony A7 III

Is it worth upgrading? Spec analysis, key improvements, and our verdict.

You own

Sony

A6600

£1299

2019

→

Upgrade to

Sony

A7 III

£1699 (+£400)

2018

❌

Skip it

The A7 III offers little measurable spec improvement over the A6600. Spend the money on glass instead.

Unchanged or similar

Suitability by genre

Base scores — computed from verified specs for an enthusiast shooting photo and video. The Upgrade Checker adjusts them for your skill level.

Full spec comparison

Spec	A6600	A7 III
Price	£1,299	£1,699
Released	2019	2018	↓
Sensor	24.2MP APS-C Exmor CMOS	24.2MP Full-Frame Exmor R BSI CMOS
Resolution	24MP	24MP
Video	4K/30p (no crop), 1080p/120p	4K/30p (6K oversampled), 1080p/120p slow-motion
Autofocus	Real-time Eye AF, real-time tracking — inherited from A9	Phase-detect, 693 points, real-time Eye AF & animal AF
Stabilisation	5-axis IBIS — 5 stops	5-axis IBIS, 5 stops
Burst Rate	11fps continuous with AF/AE	10fps with AF/AE tracking	↓
Battery Life	~810 shots (CIPA) — large NP-FZ100 battery	~710 shots (CIPA)	↓
Weight	503g (body only)	565g (body only)	↓
Weather Sealed	Yes	Yes
Viewfinder	EVF, 2.36M dots, 0.70× magnification	EVF, 2.36M dots, 0.78× magnification
Screen	3.0" touchscreen, tilting	3.0" tilting touchscreen, 921k dots
Mount	Sony E-mount (APS-C)	Sony E-mount
Memory Cards	Single SD UHS-I slot	Dual SD (UHS-II slot 1, UHS-I slot 2)

Compare side-by-side

See A6600 and A7 III next to each other with our interactive comparison tool.

Get a personalised upgrade score

Tell us what you shoot and we'll score the A7 III against your specific genres — not just specs.

Other upgrades from the A6600

Related buying guides

Camera family history