A1 IIvs A7R IV
Sony
A1 II (2025)
Starting from £6500 new
Best for Professional sports, wildlife & high-resolution studio work
View A1 II
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GearScore™ Verdict — Which should you buy?
Professional Sports, Wildlife & High-Resolution Studio Work — A1 II (2025): The most complete camera ever made — 50MP, 30fps, 8K, and the world's best EVF in a single flagship body.
Landscape, Studio, Commercial — A7R IV (2019): 61MP in a mirrorless body — the resolution benchmark.
Who should buy what
A1 II (2025)
- Professional sports and wildlife photographers who need 30fps, 50MP, and the best AF available
- Commercial and advertising photographers who demand 50MP resolution alongside pro video specs
- Photojournalists who need a single body capable of handling every assignment
- Sony system shooters ready to invest in the absolute best
A7R IV (2019)
- Landscape photographers who print large
- Studio shooters needing maximum detail
Quick take: The a7r iv has the highest resolution at 61mp; the a7r iv is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | A1 II (2025) | A7R IV (2019) |
|---|---|---|
| Price | £6,500 | £2,199 |
| Sensor | 50.1MP full-frame stacked BSI CMOS | Full-frame BSI Exmor R CMOS 35mm |
| Resolution | 50.1MP | 61.0MP |
| Video | 8K/30p, 4K/120p 10-bit, 4K/240p super slow-motion | 4K 30fps |
| Autofocus | AI subject recognition — human, animal, bird, insect, vehicle, aircraft, train | 567-point phase-detect, real-time tracking |
| Stabilisation | 8.5-stop IBIS (with in-lens OSS) | 5-axis IBIS, 5.5 stops |
| Burst Rate | 30fps electronic (with full AF/AE), 10fps mechanical | 10fps |
| Battery Life | ~530 shots (CIPA) | 670 shots (CIPA) |
| Weight | 743g body only | 665g (body only) |
| Dimensions | 136.1 × 96.9 × 82.9mm | 128.9 × 96.4 × 77.5mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.9× 9.44M-dot — the highest resolution EVF available | EVF 0.78× 5.76M-dot |
| Screen | 3.2" fully articulating touchscreen, 2.1M dots | 3.0" tilting touchscreen, 1.44M-dot |
| Mount | Sony E-mount (full-frame) | Sony E-Mount |
| Memory Cards | Dual CFexpress Type A / SD UHS-II slots | 2× SD UHS-II / CFexpress Type A |
| Connectivity | USB-C 3.2 Gen 2, Wi-Fi 6GHz, Bluetooth 5.3, HDMI full-size | Wi-Fi 5GHz, Bluetooth 4.1, USB-C 3.2 |
Suitability by genre
| Genre | A1 II | A7R IV |
|---|---|---|
| Sports | — | |
| Wildlife | ||
| Portrait | ||
| Landscape | ||
| Vlogging & Video | ||
| Travel | ||
| Architecture | — | |
| Street | — | |
| Wedding & Events | — |
More comparisons with A1 II
Camera family history