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Sony RX10 III vs Sony RX100 IV

The Sony RX10 III and the Sony RX100 IV side by side, computed from this guide's catalogue.

Which to pick

On these specs they are close to even: hold both if you can, and let the price, the handling and the lenses you want decide.

Still torn? Ask the guide about the Sony RX10 III and the Sony RX100 IV

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Sony RX10 III	Sony RX100 IV
Maker	Sony	Sony
Mount	built-in lens	built-in lens
Sensor	1-inch, 13.2 x 8.8 mm	1-inch, 13.2 x 8.8 mm
Crop factor	2.7×	2.7×
Resolution	20.1 MP	20.1 MP
Stabilisation	yes	yes
Announced	2016	2015
Type	fixed-lens compact	fixed-lens compact
Lens	8.8-220mm f/2.4-4, like 24-594mm on full frame	8.8-26mm f/1.8-2.8, like 24-69mm on full frame

Sensor size

Both sensors drawn to the same scale.

Crop factors: Sony RX10 III 2.7×, Sony RX100 IV 2.7×.

What a 50mm frames like

The Sony RX10 III takes no lenses: its built-in 8.8mm frames like 24mm on full frame. The Sony RX100 IV takes no lenses: its built-in 8.8mm frames like 24mm on full frame.

Horizontal angle of view on each.

Lenses

They share no lenses: both have a built-in lens.

The Sony RX10 III: a built-in lens. The Sony RX100 IV: a built-in lens.