Panasonic Lumix S5 IIX vs Sony FX3
Every published spec side by side, with today's lowest prices for the market you've chosen.
Key differences
- Announced: Jan 2023 on the Lumix S5 IIX, against Feb 2021 on the FX3.
- Resolution: 24.2 MP on the Lumix S5 IIX, against 12.1 MP on the FX3.
- Native ISO: 80–102,400 on the FX3, against 100–51,200 on the Lumix S5 IIX.
- Burst (mechanical): 10 fps on the FX3, against 9 fps on the Lumix S5 IIX.
- Max resolution: 6K on the Lumix S5 IIX, against 4K on the FX3.
- 4K frame rate: 120p on the FX3, against 60p on the Lumix S5 IIX.
Lumix S5 IIX or FX3: which should you buy?
Choose the Lumix S5 IIX for its resolution, max resolution, viewfinder and rear screen.
Choose the FX3 for its native ISO, burst (mechanical), 4K frame rate and weight (with battery).
 |  | |
|---|---|---|
| Lowest price today | $1,799.99 new $2,197.99 used | $3,499 new $3,399.99 used |
| Overview | ||
| Type | Mirrorless | Mirrorless |
| Announced | Jan 2023 (best) | Feb 2021 |
| US launch priceUS list price when announced, body only. Today's prices are in the offers table. | $2,199 | $3,899 |
| Lens | Interchangeable | Interchangeable |
| Sensor & image | ||
| Sensor size | Full frame | Full frame |
| Sensor type | CMOS | BSI CMOS |
| Resolution | 24.2 MP (best) | 12.1 MP |
| Native ISO | 100–51,200 | 80–102,400 (best) |
| In-body stabilisation | Yes, 6.5 stops | Yes |
| Speed & autofocus | ||
| Burst (mechanical) | 9 fps | 10 fps (best) |
| Burst (electronic) | 30 fps | — |
| Fastest shutter (mech.) | 1/8,000s | 1/8,000s |
| Fastest shutter (elec.) | 1/8,000s | — |
| AF pointsMakers count points differently, so this is not ranked. | 779 | — |
| Subject detectionMakers group subjects differently (Canon's "animal" includes birds), so only having it is ranked. | Human, Animal | Human |
| Video | ||
| Max resolution | 6K (best) | 4K |
| 4K frame rate | 60p | 120p (best) |
| 10-bit internal | Yes | Yes |
| Internal raw video | No | No |
| Mic input | Yes | Yes |
| Headphone jack | Yes | Yes |
| Viewfinder & screen | ||
| Viewfinder | Electronic, 3.68M dots (best) | None |
| Rear screen | 3", 1.84M dots (best) | 3", 1.44M dots |
| Screen articulation | Fully articulating | Fully articulating |
| Touchscreen | Yes | Yes |
| Body & battery | ||
| Weight (with battery) | 737 g | 715 g (best) |
| Dimensions (W×H×D) | 134.3 × 102.3 × 90.1 mm | 129.7 × 77.8 × 84.5 mm |
| Weather sealed | Yes | Yes |
| Battery (CIPA shots) | 370 | — |
| Card slots | 2 · SD UHS-II + SD UHS-II | 2 · CFexpress A / SD UHS-II + CFexpress A / SD UHS-II |
| USB-C | Yes | Yes |
| Built-in flash | No | No |
| Wi-Fi / Bluetooth | Wi-Fi + Bluetooth | Wi-Fi + Bluetooth |
Green marks the better figure where “better” is unambiguous. A dash means the maker doesn't publish it or we haven't verified it yet.
Price history: is the newer one cheaper?
Low light & noise
Lumix S5 IIX
6.0 µm pixels
24.2 MP on a full frame sensor, ISO up to 51,200
FX3
8.5 µm pixels
12.1 MP on a full frame sensor, ISO up to 102,400
Bigger pixels gather more light each, so they tend to show less noise at high ISO, but sensor design matters as much. For real noise at ISO 6400, these sites measure it:
- Photons to Photos: dynamic range vs ISO ↗Photographic dynamic range measured at every ISO, bodies on one chart
- Photons to Photos: noise vs ISO ↗Read noise at every ISO from lab tests: lower is cleaner in the shadows
- DPReview studio scene ↗The same scene shot by each camera at the ISO you pick, side by side
- DPReview reviews ↗Full reviews with high-ISO samples
- Low-light video tests ↗Real-world high-ISO footage on YouTube
Size, to scale
Front (width × height)
Top (width × depth)