S1 IIvs A7R IV
GearScore™ Verdict — Which should you buy?
Hybrid & Video — S1 II (2025): The S1 II is the full-frame L-mount hybrid camera Panasonic's system has been waiting for — phase-detect AF, 4K/120p, class-leading IBIS, and a professional build in one complete package. It addresses every weakness of the original S1 and positions Lumix firmly back in the conversation for serious hybrid shooters.
Landscape, Studio, Commercial — A7R IV (2019): 61MP in a mirrorless body — the resolution benchmark.
Who should buy what
S1 II (2025)
- Hybrid photographers who need excellent stills and serious video capability
- Video professionals who want full-frame quality with 4K/120p
- Landscape and portrait photographers who want maximum stabilisation
- L-mount system users upgrading from S1 or S5 II
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 | S1 II (2025) | A7R IV (2019) |
|---|---|---|
| Price | £2,200 | £2,199 |
| Sensor | 24.2MP Full-Frame BSI CMOS | Full-frame BSI Exmor R CMOS 35mm |
| Resolution | 24.2MP | 61.0MP |
| Video | 6K/30p, 4K/120p, 10-bit 4:2:2 internal | 4K 30fps |
| Autofocus | Phase-detect AF with subject recognition (human, animal, vehicle) | 567-point phase-detect, real-time tracking |
| Stabilisation | 5-axis IBIS, up to 8 stops | 5-axis IBIS, 5.5 stops |
| Burst Rate | 30fps (electronic), 9fps (mechanical) | 10fps |
| Battery Life | ~400 shots (CIPA) | 670 shots (CIPA) |
| Weight | 680g (body only) | 665g (body only) |
| Dimensions | 138.5 × 100.0 × 91.5mm | 128.9 × 96.4 × 77.5mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Electronic, 3.68M dots, 0.78× | EVF 0.78× 5.76M-dot |
| Screen | 3.0" fully articulating touchscreen, 1.84M dots | 3.0" tilting touchscreen, 1.44M-dot |
| Mount | Leica L-mount | Sony E-Mount |
| Memory Cards | Dual slot: CFexpress Type B + SD UHS-II | 2× SD UHS-II / CFexpress Type A |
| Connectivity | USB-C, Wi-Fi, Bluetooth, HDMI | Wi-Fi 5GHz, Bluetooth 4.1, USB-C 3.2 |
Suitability by genre
| Genre | S1 II | A7R IV |
|---|---|---|
| Vlogging & Video | ||
| Portrait | ||
| Landscape | ||
| Wedding & Events | ||
| Travel | ||
| Sports & Action | — | |
| Wildlife | ||
| Street | ||
| Architecture | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with S1 II
Camera family history