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Quick take: The S1 has the highest resolution at 24MP; the OM-5 Mark II is the most affordable.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
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S1 — Landscape, Studio & Professional Stills On L-Mount: Built like a tank with one of the finest viewfinders ever made — the S1 is the choice for photographers who prioritise build quality and IBIS over AF speed.
| Specification | S1Lumix · 2019 | OM-5 Mark IIOM System · 2025 |
|---|---|---|
| Price | £1,499 | £880Best |
| Sensor | 24.2MP full-frame CMOS | 20.4MP Four Thirds Live MOS |
| Resolution | 24.2MPBest | 20.4MP |
| Video | 4K/60p (crop), 4K/30p (full-frame), 1080p/180p, V-Log (upgrade) | 4K/30p, OM-Log400 |
| Autofocus | DFD contrast-detect AF — reliable but slower than phase-detect rivals | Phase-hybrid AF (121 cross-type points) |
| Stabilisation | 5-axis IBIS — 6 stops | Up to 7.5-stop Sync IS (6.5-stop body-only) |
| Burst Rate | 9fps continuous with AF/AE | 10fps (AF tracking), 30fps (locked)Best |
| Battery Life | ~380 shots (CIPA)Best | 310 shots (CIPA) |
| Weight | 898g (body only) | 370g (body only)Best |
| Dimensions | 148.9 × 110.0 × 96.7mm | — |
| Weather Sealed | Yes | Yes |
| Viewfinder | OLED EVF, 5.76M dots, 0.78× — one of the finest EVFs available | EVF, 2.36M dots, 1.37x magnification |
| Screen | 3.2" touchscreen, tilting | Fully articulating touchscreen |
| Mount | L-mount (Leica/Panasonic/Sigma) | Micro Four Thirds |
| Memory Cards | Dual SD UHS-II slots | Single SD (UHS-II) |
| Connectivity | USB-C, Bluetooth, Wi-Fi, 3.5mm mic & headphone jacks | USB-C, Wi-Fi, Bluetooth |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →