S1 IIvs A7 III
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.
All-Round Photography & Video — A7 III (2018): Still one of the best all-round cameras money can buy — particularly strong used. The A7 III proved that full-frame doesn't have to mean compromises, and nothing at this price point has meaningfully beaten it.
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
A7 III (2018)
- Enthusiast photographers upgrading from APS-C for the first time
- Working photographers who need reliable AF and weather sealing
- Anyone who shoots in low light regularly
- Hybrid shooters needing both stills and video performance
Quick take: The a7 iii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | S1 II (2025) | A7 III (2018) |
|---|---|---|
| Price | £2,200 | £1,699 |
| Sensor | 24.2MP Full-Frame BSI CMOS | 24.2MP Full-Frame Exmor R BSI CMOS |
| Resolution | 24.2MP | 24.2MP |
| Video | 6K/30p, 4K/120p, 10-bit 4:2:2 internal | 4K/30p (6K oversampled), 1080p/120p slow-motion |
| Autofocus | Phase-detect AF with subject recognition (human, animal, vehicle) | Phase-detect, 693 points, real-time Eye AF & animal AF |
| Stabilisation | 5-axis IBIS, up to 8 stops | 5-axis IBIS, 5 stops |
| Burst Rate | 30fps (electronic), 9fps (mechanical) | 10fps with AF/AE tracking |
| Battery Life | ~400 shots (CIPA) | ~710 shots (CIPA) |
| Weight | 680g (body only) | 565g (body, battery, card) |
| Dimensions | 138.5 × 100.0 × 91.5mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Electronic, 3.68M dots, 0.78× | EVF, 2.36M dots, 0.78× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.84M dots | 3.0" tilting touchscreen, 921k dots |
| Mount | Leica L-mount | Sony E-mount |
| Memory Cards | Dual slot: CFexpress Type B + SD UHS-II | Dual SD (UHS-II slot 1, UHS-I slot 2) |
| Connectivity | USB-C, Wi-Fi, Bluetooth, HDMI | USB-C (USB 3.2), Wi-Fi, Bluetooth, NFC |
Suitability by genre
| Genre | S1 II | A7 III |
|---|---|---|
| Vlogging & Video | — | |
| Portrait | ||
| Landscape | — | |
| Wedding & Events | — | |
| Travel | ||
| Sports & Action | — | |
| Wildlife | ||
| Street | ||
| Video | — |
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