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Quick take: The Leica SL3-S has the highest resolution at 25MP; the Leica SL3-S 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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A9 III — Sports & Action Professionals: A paradigm-shifting camera — the global shutter eliminates every rolling shutter limitation that has constrained action photography for years.
| Specification | Leica SL3-SLeica · 2025 | A9 IIISony · 2023 |
|---|---|---|
| Price | £4,489Best | £5,699 |
| Sensor | 24.6MP full-frame BSI CMOS | 24.6MP full-frame Exmor RS CMOS (global shutter) |
| Resolution | 25.0MPBest | 24.6MP |
| Video | 6K/30p open gate, 4K/60p, 10-bit, L-Log | 4K/120p, 4K/60p, 1080p/240p |
| Autofocus | Hybrid phase-detect AF with subject/face/eye detection | AI subject recognition AF, 759-point phase-detect |
| Stabilisation | 5-stop IBIS | 8-stop IBIS |
| Burst Rate | 30fps (electronic) | 120fps blackout-free electronicBest |
| Battery Life | 315 shots (CIPA) | 530 shots (CIPA)Best |
| Weight | 852g (with battery and card) | 703g (body only)Best |
| Dimensions | — | 136.1 × 96.9 × 82.9mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF | 0.64" Quad-XGA OLED EVF, 9.44M dots |
| Screen | Tilting touchscreen | 3.2" fully articulating touchscreen |
| Mount | Leica L (L-mount) | Sony FE (E-mount) |
| Memory Cards | CFexpress Type B + SD UHS-II | Dual CFexpress Type A / SD UHS-II |
| Connectivity | USB-C 10Gbit, full-size HDMI 2.1, Wi-Fi, Bluetooth | USB-C 3.2, HDMI A, Wi-Fi 6, Bluetooth 5.3 |
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 →