S1 IIvs OM System OM-1 Mark II
OM System
OM System OM-1 Mark II (2024)
Starting from £1999 new
Best for Wildlife, birds & outdoor sports
View OM System OM-1 Mark II
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.
Wildlife, Birds & Outdoor Sports — OM System OM-1 Mark II (2024): OM System's most capable camera — 120fps AF burst, AI subject detection, and IP53 weather sealing make it the best-value pro wildlife camera.
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
OM System OM-1 Mark II (2024)
- Wildlife and bird photographers who need the best subject tracking in MFT
- Sports photographers who want weather sealing and 50fps burst
- OM-1 owners looking for a meaningful autofocus upgrade
- Professionals who need pro-grade weather sealing in the lightest possible system
Quick take: The s1 ii has the highest resolution at 24mp; the om system om-1 mark ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | S1 II (2025) | OM System OM-1 Mark II (2024) |
|---|---|---|
| Price | £2,200 | £1,999 |
| Sensor | 24.2MP Full-Frame BSI CMOS | 20MP Micro Four Thirds Live MOS |
| Resolution | 24.2MP | 20.0MP |
| Video | 6K/30p, 4K/120p, 10-bit 4:2:2 internal | 4K/60p, 1080p/240p, 4K HLG |
| Autofocus | Phase-detect AF with subject recognition (human, animal, vehicle) | AI subject detection AF (birds, animals, motorsport) |
| Stabilisation | 5-axis IBIS, up to 8 stops | 8.5-stop IBIS |
| Burst Rate | 30fps (electronic), 9fps (mechanical) | 120fps with AF tracking |
| Battery Life | ~400 shots (CIPA) | 520 shots (CIPA) |
| Weight | 680g (body only) | 599g body only |
| Dimensions | 138.5 × 100.0 × 91.5mm | 134.8 × 91.6 × 72.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Electronic, 3.68M dots, 0.78× | 0.83" OLED EVF, 5.76M dots, 120fps |
| Screen | 3.0" fully articulating touchscreen, 1.84M dots | 3.0" fully articulating touchscreen |
| Mount | Leica L-mount | Micro Four Thirds |
| Memory Cards | Dual slot: CFexpress Type B + SD UHS-II | Dual SD UHS-II |
| Connectivity | USB-C, Wi-Fi, Bluetooth, HDMI | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | S1 II | OM System OM-1 Mark II |
|---|---|---|
| Vlogging & Video | ||
| Portrait | ||
| Landscape | ||
| Wedding & Events | — | |
| Travel | ||
| Sports & Action | ||
| Wildlife | ||
| Street | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history