Sony
FX3 2021
Best for Professional video, documentary & cinematic filmmaking
£2999
new today at Wex Photo Video
Decision tools · Compare
FX3 vs RX100 VII
Quick take: The RX100 VII has the highest resolution at 20MP; the RX100 VII is the most affordable; only the FX3 is weather sealed.
16 specs side by side·16 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more
Verdictwhich should you buy?
FX3 — Professional Video, Documentary & Cinematic Filmmaking: The definitive run-and-gun cinema camera — A7S III sensor quality in a body built specifically for video professionals.
RX100 VII — Travel & Versatility: The most versatile compact camera ever made — 24-200mm zoom, 20fps burst, and 960fps slow-motion in a jacket pocket.
Who should buy what
FX3 (2021)
is the right camera for you if…
- Professional videographers and filmmakers who need cinema-quality colour science in a compact body
- Documentary and run-and-gun shooters who need 4K/120p and built-in XLR audio
- Sony A7S III owners who want a purpose-built video body alongside their stills camera
- Gimbal and drone operators who need a compact full-frame cinema camera
RX100 VII (2019)
is the right camera for you if…
- Travel photographers who want the most capable 1-inch compact available
- Vloggers who need fast AF and a flip screen in a jacket-pocket body
- Photographers who want a high-quality compact backup to a mirrorless system
- Anyone who wants professional AF performance without carrying a large camera
Full specificationsthe better value in each row is highlighted
| Specification | FX3Sony · 2021 | RX100 VIISony · 2019 |
|---|---|---|
| Price | £2,999 | £1,049Best |
| Sensor | 12.1MP full-frame BSI Exmor R CMOS (same as A7S III) | 20.1MP 1-inch Exmor RS BSI CMOS (stacked) |
| Resolution | 12.1MP | 20.1MPBest |
| Video | 4K/120p, 4K/60p 10-bit, 12-bit RAW output, S-Log3, S-Cinetone | 4K/30p HLG, FHD/960fps super slow-motion |
| Autofocus | Real-time tracking with subject recognition (human, animal) | 357-point phase-detect + 425 contrast, Eye AF, tracking |
| Stabilisation | 5-axis IBIS — 5 stops | 3-stop Optical SteadyShot |
| Burst Rate | 10fps mechanical, 10fps electronic | 20fps AF/AE tracking (90fps short burst)Best |
| Battery Life | ~640 shots (CIPA)Best | ~260 shots (CIPA) |
| Weight | 715g (body only) | 302g (with battery and card)Best |
| Dimensions | 129.7 × 78.0 × 84.5mm | 101.6 × 58.1 × 42.8mm |
| Weather Sealed | YesBest | Not weather sealed |
| Viewfinder | None — monitor/external EVF use only | Pop-up EVF, 2.36M dots, 0.59× magnification |
| Screen | 3.0" touchscreen, fully articulating | 3.0" tilting touchscreen |
| Mount | Sony FE mount (full-frame E-mount) | Fixed Zeiss Vario-Sonnar 24-200mm f/2.8-4.5 |
| Memory Cards | Dual CFexpress Type A / SD UHS-II slots | Single SD UHS-I slot |
| Connectivity | USB-C (10Gbps), full-size HDMI, XLR via handle, Bluetooth, Wi-Fi | USB-C, Bluetooth, Wi-Fi, NFC |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
FX3
RX100 VII
Portrait
5.7/10
5.6/10
Street
4.3/10
7.2/10
Travel
5.5/10
7.1/10
Wedding & Events
6.0/10
3.9/10
Vlogging & Video
6.1/10
6.1/10
Filmmaking
9.1/10
4.9/10
Documentary
8.0/10
5.5/10
Sports & Action
5.5/10
6.7/10
Landscape
4.7/10
4.3/10
Wildlife
5.8/10
6.5/10
Casual
4.9/10
6.0/10
Food
6.7/10
5.4/10
Macro
5.5/10
3.9/10
Architecture
5.2/10
4.6/10
Astrophotography
6.7/10
4.2/10
Fun & simple
—
5.1/10
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 →
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