X-A7vs Z6 IIIvs A6400
Which should you buy?
Beginner Fujifilm — X-A7 (2019): The most affordable X-mount entry — Fujifilm colour and film simulations with a large flip screen for beginners.
Hybrid Video & Action — Z6 III (2024): Partial-stacked FF sensor for near-zero blackout, 6K RAW video, and 60fps burst — Nikon's most capable hybrid.
Content Creation & Vlogging — A6400 (2019): 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.
Who should buy what
X-A7 (2019)
- You want an affordable first mirrorless with decent video capabilities
- You shoot a lot of selfie-style content or vlog on a budget
- Note: no viewfinder and limited lens support — the X-T30 II is a better long-term investment
Z6 III (2024)
- You need the best all-round full-frame camera in Nikon's Z system
- You shoot in challenging or low light and need exceptional high-ISO performance
- You want a hybrid body that genuinely excels at both professional stills and video
A6400 (2019)
- 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
Quick take: The z6 iii has the highest resolution at 24mp; the x-a7 is the most affordable; only the z6 iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | X-A7 (2019) | Z6 III (2024) | A6400 (2019) |
|---|---|---|---|
| Price | £399 | £2,199 | £899 |
| Sensor | 24.2MP APS-C CMOS (Bayer, not X-Trans) | 24.5MP Full-frame Partial-stacked CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.2MP | 24.5MP | 24.2MP |
| Video | 4K/30p, 1080p/60p | 6K/60p RAW, 4K/120p, 4K/60p oversampled, N-Log, 10-bit | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Phase-detect + contrast, 425 points | Phase-detect, 273 points, subject detection (human/animal/vehicle/aircraft) | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None (no IBIS) | 5-axis IBIS, 6.0 stops | None (no IBIS) |
| Burst Rate | 6fps | 20fps mechanical, 60fps electronic | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~440 shots (CIPA) | ~380 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 320g body only | 760g body only | 403g (body, battery, card) |
| Dimensions | 118.0 × 80.6 × 55.2mm | 138.5 × 101.5 × 74.0mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | Yes | No |
| Viewfinder | None | EVF, 5.76M dots, 0.90× magnification | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.5" fully articulating touchscreen | 3.2" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Fujifilm X-mount | Nikon Z-mount (full-frame) | Sony E-mount |
| Memory Cards | Single SD UHS-I slot | Dual slots: CFexpress Type B + SD UHS-II | Single SD UHS-I |
| Connectivity | USB Micro-B, Bluetooth, Wi-Fi, micro HDMI | USB-C 3.2, Bluetooth, Wi-Fi | Micro-USB, Wi-Fi, Bluetooth, NFC |
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