Upgrade Guide

Sony A7R III→Sony A9 II

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

You own

Sony

A7R III

£1799

2017

→

Upgrade to

Sony

A9 II

£3299 (+£1,500)

2019

✅

Worthwhile

Clear improvements over the A7R III. Whether it justifies the cost depends on which upgrades matter most to your shooting.

What's new in the A9 II

↑

Burst rate

20fps (blackout-free with full AF/AE) vs 10fps with AF/AE tracking
↑

Generation

2 years newer (2019 vs 2017)

Unchanged or similar

Suitability by genre

Full spec comparison

Spec	A7R III	A9 II
Price	£1,799	£3,299
Released	2017	2019	↑
Sensor	42.4MP full-frame BSI Exmor R CMOS	24.2MP Full-Frame Stacked BSI CMOS Exmor RS
Resolution	42MP	24MP	↓
Video	4K/30p (full-frame readout), 1080p/120p	4K/30p, 1080p/120p
Autofocus	399 phase-detect + 425 contrast AF points — real-time Eye AF	693 phase-detect + 425 contrast-detect, real-time eye/body tracking
Stabilisation	5-axis IBIS — 5.5 stops	IBIS — 5-axis, up to 5.5 stops
Burst Rate	10fps with AF/AE tracking	20fps (blackout-free with full AF/AE)	↑
Battery Life	~650 shots (CIPA)	~500 shots (CIPA)	↓
Weight	650g body only	678g (with battery and card)	↓
Weather Sealed	Yes	Yes
Viewfinder	EVF, 3.69M dots, 0.78× magnification	EVF, OLED 3.69M dots, 0.78× magnification
Screen	3.0" touchscreen, tilting	3.0" tilting touchscreen
Mount	Sony FE mount (full-frame E-mount)	Sony FE (full-frame E-mount)
Memory Cards	Dual SD slots (one UHS-II)	Dual SD UHS-II slots

Compare side-by-side

See A7R III and A9 II next to each other with our interactive comparison tool.

Get a personalised upgrade score

Tell us what you shoot and we'll score the A9 II against your specific genres — not just specs.

Other upgrades from the A7R III

Camera family history