EOS R8vs X-A7vs A6400
Which should you buy?
Full-Frame Entry — EOS R8 (2023): Canon's most affordable full-frame mirrorless — 4K/60p 10-bit and class-leading Dual Pixel AF at an accessible entry price.
Beginner Fujifilm — X-A7 (2019): The most affordable X-mount entry — Fujifilm colour and film simulations with a large flip screen for beginners.
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
EOS R8 (2023)
- You want full-frame image quality on a tight budget
- You shoot mainly in good light and can live without built-in stabilisation
- You primarily shoot stills with occasional video
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
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 x-a7 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R8 (2023) | X-A7 (2019) | A6400 (2019) |
|---|---|---|---|
| Price | £1,099 | £399 | £899 |
| Sensor | 24.2MP Full-frame BSI CMOS | 24.2MP APS-C CMOS (Bayer, not X-Trans) | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.2MP | 24.2MP | 24.2MP |
| Video | 4K/60p oversampled 10-bit, FHD/180p | 4K/30p, 1080p/60p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF II, 1053 zones, eye/face/subject tracking | Phase-detect + contrast, 425 points | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None (no IBIS) | None (no IBIS) | None (no IBIS) |
| Burst Rate | 6fps mechanical, 40fps electronic | 6fps | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~220 shots (CIPA) | ~440 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 461g body only | 320g body only | 403g (body, battery, card) |
| Dimensions | 132.5 × 86.1 × 70.0mm | 118.0 × 80.6 × 55.2mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | No | No |
| Viewfinder | EVF, 2.36M dots, 0.59× | None | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" fully articulating touchscreen | 3.5" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon RF mount (full-frame) | Fujifilm X-mount | Sony E-mount |
| Memory Cards | Single SD UHS-II slot | Single SD UHS-I slot | Single SD UHS-I |
| Connectivity | USB-C, Bluetooth, Wi-Fi | USB Micro-B, Bluetooth, Wi-Fi, micro HDMI | Micro-USB, Wi-Fi, Bluetooth, NFC |
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