Upgrade Guide

Sony RX100 VI→Sony A7R III

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

You own

Sony

RX100 VI

£700

2018

→

Upgrade to

Sony

A7R III

£1799 (+£1,099)

2017

✅

Worthwhile

Clear improvements over the RX100 VI. Whether it justifies the cost depends on which upgrades matter most to your shooting.

What's new in the A7R III

Suitability by genre

Full spec comparison

Spec	RX100 VI	A7R III
Price	£700	£1,799
Released	2018	2017	↓
Sensor	20.1MP 1-inch BSI Stacked CMOS	42.4MP full-frame BSI Exmor R CMOS
Resolution	20MP	42MP	↑
Video	4K/30p, 1080p/120p, 960fps HFR	4K/30p (full-frame readout), 1080p/120p
Autofocus	Fast Hybrid AF, 315 phase-detect points, Eye AF	399 phase-detect + 425 contrast AF points — real-time Eye AF
Stabilisation	Optical SteadyShot	5-axis IBIS — 5.5 stops
Burst Rate	24fps	10fps with AF/AE tracking	↓
Battery Life	~240 shots (CIPA)	~650 shots (CIPA)	↑
Weight	301g (with battery and card)	650g body only	↓
Weather Sealed	No	Yes	↑
Viewfinder	Pop-up EVF, 2.35M dots	EVF, 3.69M dots, 0.78× magnification
Screen	3.0" fully articulating touchscreen, 921k dots	3.0" touchscreen, tilting
Mount	Fixed Zeiss Vario-Sonnar T* 24-200mm f/2.8-4.5	Sony FE mount (full-frame E-mount)
Memory Cards	Single SD / Memory Stick PRO Duo slot	Dual SD slots (one UHS-II)

Compare side-by-side

See RX100 VI and A7R 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 A7R III against your specific genres — not just specs.

Other upgrades from the RX100 VI

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Camera family history