Decision tools · Compare
RX100 III vs RX100 IV
Quick take: The RX100 III is the most affordable.
16 specs side by side·12 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
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Full specificationsthe better value in each row is highlighted
| Specification | RX100 IIISony · 2014 | RX100 IVSony · 2015 |
|---|---|---|
| Price | £275 usedBest | £300 used |
| Sensor | 20.1MP 1-inch CMOS | 20.1MP 1-inch CMOS |
| Resolution | 20.1MP | 20.1MP |
| Video | Full HD 1080p/60 (XAVC S) | 4K/30p (XAVC S), 1080p HFR up to 960fps, S-Log2 |
| Autofocus | 25-point contrast-detect AF, Eye AF, Lock-on AF | 25-point contrast-detect AF, Eye AF, Lock-on AF |
| Stabilisation | Optical SteadyShot (in the lens), no IBIS | Optical SteadyShot (in the lens), no IBIS |
| Burst Rate | 10fps (2.9fps with AF-S per frame) | 16fps (5.5fps with AF)Best |
| Battery Life | ~320 shots (CIPA)Best | ~280 shots (CIPA) |
| Weight | 290g (with battery and card)Best | 298g (with battery and card) |
| Dimensions | 101.6 × 58.1 × 41mm | 101.6 × 58.1 × 41mm |
| Weather Sealed | Not weather sealed | Not weather sealed |
| Viewfinder | Pop-up OLED EVF, 1.44M dots | Pop-up OLED EVF, 2.36M dots |
| Screen | 3.0" LCD, 1.23M dots, tilts 180° up | 3.0" LCD, 1.23M dots, tilts 180° up |
| Mount | Fixed Zeiss Vario-Sonnar T* 24-70mm f/1.8-2.8 | Fixed Zeiss Vario-Sonnar T* 24-70mm f/1.8-2.8 |
| Memory Cards | Single SD / Memory Stick slot | Single SD / Memory Stick slot |
| Connectivity | Multi / micro USB, micro HDMI, Wi-Fi, NFC | Multi / micro USB, micro HDMI (4K out), Wi-Fi, NFC |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
RX100 III
RX100 IV
Portrait
4.0/10
4.0/10
Street
7.1/10
7.1/10
Travel
6.4/10
6.3/10
Wedding & Events
2.5/10
2.6/10
Documentary
3.3/10
3.9/10
Landscape
4.2/10
4.2/10
Casual
4.1/10
4.2/10
Food
4.4/10
4.4/10
Macro
3.4/10
3.4/10
Architecture
4.3/10
4.3/10
Astrophotography
2.9/10
2.8/10
Filmmaking
—
4.0/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
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