Is it worth upgrading? Spec analysis, key improvements, and our verdict.
Base scores — computed from verified specs for an enthusiast shooting photo and video. The Upgrade Checker adjusts them for your skill level.
| Genre | A7R III | Sony RX1R III | |
|---|---|---|---|
| Portrait | -1.9 | ||
| Street | +1.5 | ||
| Travel | -0.1 | ||
| Wedding & Events | -1.8 | ||
| Filmmaking | -1.0 | ||
| Documentary | -1.2 | ||
| Sports & Action | — | ||
| Landscape | -1.7 | ||
| Wildlife | — | ||
| Casual | -0.1 | ||
| Food | -0.7 | ||
| Macro | -1.4 | ||
| Architecture | -1.5 | ||
| Astrophotography | -0.8 |
| Spec | A7R III | Sony RX1R III | |
|---|---|---|---|
| Price | £1,799 | £3,899 | |
| Released | 2017 | 2025 | ↑ |
| Sensor | 42.4MP full-frame BSI Exmor R CMOS | 61MP full-frame Exmor R BSI CMOS | |
| Resolution | 42MP | 61MP | ↑ |
| Video | 4K/30p (full-frame readout), 1080p/120p | 4K/30p, 10-bit | |
| Autofocus | 399 phase-detect + 425 contrast AF points — real-time Eye AF | Hybrid phase-detect AF (693 points) with eye detection | |
| Stabilisation | 5-axis IBIS — 5.5 stops | No stabilisation | |
| Burst Rate | 10fps with AF/AE tracking | 5fps | ↓ |
| Battery Life | ~650 shots (CIPA) | 300 shots (CIPA, LCD) | ↓ |
| Weight | 650g (body only) | 496g (with battery and card) | ↑ |
| Weather Sealed | Yes | Not weather sealed | ↓ |
| Viewfinder | EVF, 3.69M dots, 0.78× magnification | EVF, 2.36M dots | |
| Screen | 3.0" touchscreen, tilting | Tilting touchscreen | |
| Mount | Sony FE mount (full-frame E-mount) | Fixed 35mm f/2 Zeiss Sonnar lens | |
| Memory Cards | Dual SD slots (one UHS-II) | Single SD (UHS-II) |
See A7R III and Sony RX1R III next to each other with our interactive comparison tool.
Tell us what you shoot and we'll score the Sony RX1R III against your specific genres — not just specs.