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Quick take: The Sony RX1R III has the highest resolution at 61MP; the Sony RX1R III is the most affordable; only the Sony FX5 is weather sealed.
15 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
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| Specification | Sony FX5Sony · 2026 | Sony RX1R IIISony · 2025 |
|---|---|---|
| Price | £4,699 | £3,899Best |
| Sensor | 16.6MP full-frame stacked Exmor RS CMOS | 61MP full-frame Exmor R BSI CMOS |
| Resolution | 16.6MP | 61.0MPBest |
| Video | 5K/60p open-gate, 4K/120p, internal RAW/X-OCN, 10-bit Log, triple base ISO | 4K/30p, 10-bit |
| Autofocus | AI-powered hybrid phase-detect AF (759 points) with subject tracking | Hybrid phase-detect AF (693 points) with eye detection |
| Stabilisation | IBIS with Dynamic Active Mode | No stabilisation |
| Burst Rate | 10fpsBest | 5fps |
| Battery Life | ~105 min actual recording, ~170 min continuous (LCD) | 300 shots (CIPA, LCD)Best |
| Weight | 734g (with battery and card) | 496g (with battery and card)Best |
| Weather Sealed | YesBest | Not weather sealed |
| Viewfinder | Optional detachable EVF (DVF-EL1), OLED | EVF, 2.36M dots |
| Screen | Fully articulating touchscreen (4-axis arm) | Tilting touchscreen |
| Mount | Sony E-mount | Fixed 35mm f/2 Zeiss Sonnar lens |
| Memory Cards | CFexpress Type A + SDXC (dual) | Single SD (UHS-II) |
| Connectivity | USB-C, full-size HDMI, Wi-Fi, Bluetooth | USB-C, Wi-Fi, Bluetooth |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
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 →