EOS-1D X Mark IIIvs S1 II
Canon
EOS-1D X Mark III (2020)
Starting from £3500 new
Best for Professional Sports, Wildlife & Press Photography
View EOS-1D X Mark III
GearScore™ Verdict — Which should you buy?
Professional Sports, Wildlife & Press Photography — EOS-1D X Mark III (2020): Canon's DSLR masterpiece — 20fps live view, 5.5K RAW, 191 cross-type AF points, and dual CFexpress. Almost certainly the finest optical viewfinder camera ever made.
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.
Who should buy what
EOS-1D X Mark III (2020)
- Sports and wildlife photographers with a Canon EF lens collection
- Professionals who prefer the optical viewfinder experience
- Press photographers who need 20fps, weather sealing, and Ethernet
- Canon historians who want to mark the end of the EOS-1D DSLR era
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
Quick take: The s1 ii has the highest resolution at 24mp; the s1 ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS-1D X Mark III (2020) | S1 II (2025) |
|---|---|---|
| Price | £3,500 | £2,200 |
| Sensor | 20.1MP full-frame CMOS | 24.2MP Full-Frame BSI CMOS |
| Resolution | 20.1MP | 24.2MP |
| Video | 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) | 6K/30p, 4K/120p, 10-bit 4:2:2 internal |
| Autofocus | 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) | Phase-detect AF with subject recognition (human, animal, vehicle) |
| Stabilisation | — | 5-axis IBIS, up to 8 stops |
| Burst Rate | 16fps mechanical, 20fps live view | 30fps (electronic), 9fps (mechanical) |
| Battery Life | ~2850 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 1250g (body only) | 680g (body only) |
| Dimensions | 158 × 167.6 × 82.6mm | 138.5 × 100.0 × 91.5mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | OVF 0.76× magnification, 100% coverage | Electronic, 3.68M dots, 0.78× |
| Screen | 3.2" fully articulating touchscreen, 4.15M dots | 3.0" fully articulating touchscreen, 1.84M dots |
| Mount | Canon EF | Leica L-mount |
| Memory Cards | Dual CFexpress Type B slots | Dual slot: CFexpress Type B + SD UHS-II |
| Connectivity | Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet | USB-C, Wi-Fi, Bluetooth, HDMI |
Suitability by genre
| Genre | EOS-1D X Mark III | S1 II |
|---|---|---|
| Sports & Action | ||
| Wildlife | ||
| Wedding & Events | ||
| Portrait | ||
| Vlogging & Video | ||
| Street | ||
| Landscape | ||
| Travel | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with EOS-1D X Mark III
Camera family history