Decision tools · Compare
A6400 vs RX100 VI
Quick take: The A6400 has the highest resolution at 24MP; the RX100 VI is the most affordable; only the A6400 is weather sealed.
Where the A6400 wins
- Resolution: 24.2MP
- Battery Life: ~410 shots (CIPA)
- Weather Sealed: Yes
- Portrait: 6.7 vs 5.4
- Wedding & Events: 5.6 vs 3.7
Where the RX100 VI wins
- Cheaper new: £670 vs £749
- Burst Rate: 24fps
- Weight: 267g (body only)
- Casual: 6.7 vs 5.8
16 specs side by side·16 genres scored·UK prices from Wex Photo Video, Clifton Cameras, MPB, eBay and Amazon UK
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
Size comparedbody only, no lens · drawn to one scale
- A6400 120 × 67 × 60 mm · 403 g
- RX100 VI 102 × 58 × 43 mm · 301 g
The RX100 VI is 18 mm narrower, 9 mm shorter, 17 mm slimmer and 102 g lighter than the A6400.
Drawn to scale from the makers' dimensions (W × H × D). Front shown, depth on the slanted edge.
Verdictwhich should you buy?
A6400 — Content Creation & Vlogging: The best value APS-C Sony you can buy — especially used. Real-time Eye AF at this price point was transformative when it launched and still makes it one of the most reliable autofocus systems in the lineup.
RX100 VI — Travel & Vlogging: The RX100 VI trades fast apertures for a remarkable 24-200mm zoom range — giving it more versatility than any previous model. 4K/30p, 24fps burst, a pop-up EVF, and an articulating screen round out an exceptional compact package. Variable aperture limits low-light performance at the long end, but for travel and events where reach matters, there is no practical alternative at this size.
Who should buy what
A6400 (2019)
is the right camera for you if…
- Vloggers and content creators who need a flip screen and reliable AF
- Photographers upgrading from a compact or smartphone
- Beginners who want room to grow into a full E-mount lens ecosystem
- Anyone prioritising autofocus performance at an accessible price
RX100 VI (2018)
is the right camera for you if…
- Travel photographers who need versatile reach in a pocketable body
- Vloggers and content creators who need 4K and an articulating screen
- Event photographers who want discreet, capable wide-to-tele coverage
- Wildlife and sports enthusiasts who want a compact travel option
Full specificationsthe better value in each row is highlighted
| Specification | A6400Sony · 2019 | RX100 VISony · 2018 |
|---|---|---|
| Price | £749 | £670Best |
| Sensor | 24.2MP APS-C Exmor CMOS BSI | 20.1MP 1-inch BSI Stacked CMOS |
| Resolution | 24.2MPBest | 20.1MP |
| Video | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion | 4K/30p, 1080p/120p, 960fps HFR |
| Autofocus | Phase-detect, 425 points, real-time Eye AF & animal AF | Fast Hybrid AF, 315 phase-detect points, Eye AF |
| Stabilisation | No stabilisation | Optical SteadyShot |
| Burst Rate | 11fps mechanical, 8fps with AF tracking | 24fpsBest |
| Battery Life | ~410 shots (CIPA)Best | ~240 shots (CIPA) |
| Weight | 403g (with battery and card) | 267g (body only)Best |
| Dimensions | 120.0 × 66.9 × 59.7mm | 101.6 × 58.1 × 42.8mm |
| Weather Sealed | YesBest | Not weather sealed |
| Viewfinder | EVF, 2.36M dots, 0.70× magnification | Pop-up EVF, 2.35M dots |
| Screen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots | 3.0" tilting touchscreen, 921k dots |
| Mount | Sony E-mount | Fixed Zeiss Vario-Sonnar T* 24-200mm f/2.8-4.5 |
| Memory Cards | Single SD UHS-I | Single SD / Memory Stick PRO Duo slot |
| Connectivity | Micro-USB, Wi-Fi, Bluetooth, NFC | Micro USB, Wi-Fi, Bluetooth |
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
A6400
RX100 VI
Portrait
6.7/10
5.4/10
Street
7.3/10
7.1/10
Travel
6.7/10
6.9/10
Wedding & Events
5.6/10
3.7/10
Vlogging & Video
5.8/10
5.9/10
Filmmaking
5.1/10
4.1/10
Documentary
6.1/10
4.8/10
Sports & Action
6.9/10
6.6/10
Landscape
5.6/10
4.3/10
Wildlife
7.4/10
6.3/10
Casual
5.8/10
6.7/10
Food
6.1/10
5.4/10
Macro
5.2/10
3.8/10
Architecture
5.5/10
4.5/10
Astrophotography
6.0/10
3.7/10
Fun & simple
—
5.5/10
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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