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 | A5100 | Sony RX1R III | |
|---|---|---|---|
| Portrait | +0.5 | ||
| Street | +0.6 | ||
| Travel | -0.6 | ||
| Wedding & Events | +2.2 | ||
| Vlogging & Video | — | ||
| Documentary | +1.4 | ||
| Sports & Action | — | ||
| Landscape | +0.7 | ||
| Wildlife | — | ||
| Casual | -0.5 | ||
| Food | +0.4 | ||
| Macro | -0.4 | ||
| Architecture | +0.8 | ||
| Astrophotography | +1.5 | ||
| Fun & simple | — | ||
| Filmmaking | — |
| Spec | A5100 | Sony RX1R III | |
|---|---|---|---|
| Price | £200 | £3,899 | |
| Released | 2014 | 2025 | ↑ |
| Sensor | 24.3MP APS-C Exmor CMOS | 61MP full-frame Exmor R BSI CMOS | |
| Resolution | 24MP | 61MP | ↑ |
| Video | 1080p/60p | 4K/30p, 10-bit | |
| Autofocus | Hybrid phase-detect / contrast-detect AF, face detection | Hybrid phase-detect AF (693 points) with eye detection | |
| Stabilisation | No stabilisation | No stabilisation | |
| Burst Rate | 6fps | 5fps | ↓ |
| Battery Life | ~400 shots (CIPA) | 300 shots (CIPA, LCD) | ↓ |
| Weight | 224g (body only) | 496g (with battery and card) | ↓ |
| Weather Sealed | Not weather sealed | Not weather sealed | |
| Viewfinder | No viewfinder | EVF, 2.36M dots | |
| Screen | 3.0" flip-up touchscreen, 921k dots | Tilting touchscreen | |
| Mount | Sony E-mount | Fixed 35mm f/2 Zeiss Sonnar lens | |
| Memory Cards | Single SD / MemoryStick PRO Duo slot | Single SD (UHS-II) |
See A5100 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.