X-E4vs Leica SL3vs A6400
Which should you buy?
Compact Street & Travel Photography — X-E4 (2021): The X-E4 is for photographers who want the minimum camera that still delivers maximum image quality. If you love shooting from the rear screen and want the smallest possible X-mount body, this is your camera. If you need a viewfinder or IBIS, look at the X-S20 or X-T30 II.
Professional & Luxury Hybrid Shooters — Leica SL3 (2024): Leica's most capable mirrorless — 60MP, 30fps burst, 8K ProRes, and 7.5-stop IBIS with L-mount's growing lens ecosystem.
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-E4 (2021)
- Street photographers who prioritise portability and discretion
- Travel photographers packing minimally
- Fujifilm fans who shoot primarily from the rear screen
- Anyone who wants the X-Trans sensor in the smallest possible body
Leica SL3 (2024)
- You want Leica image quality with the convenience of autofocus and interchangeable lenses
- You shoot portraits, commercial, or editorial and want the best Leica system camera
- You plan to use Leica M lenses via adapter alongside native SL glass
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 leica sl3 has the highest resolution at 60mp; the x-e4 is the most affordable; only the leica sl3 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | X-E4 (2021) | Leica SL3 (2024) | A6400 (2019) |
|---|---|---|---|
| Price | £699 | £6,499 | £899 |
| Sensor | 26.1MP APS-C X-Trans CMOS IV | 60MP full-frame BSI CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 26.1MP | 60.0MP | 24.2MP |
| Video | 4K/30p, 1080p/240p slow-motion, F-Log | 8K/30p, 4K/60p, Apple ProRes | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Phase-detect, 425 points, face/Eye detection | Phase-detect AF with subject/face/eye detection | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None (no IBIS) | 7.5-stop IBIS | None (no IBIS) |
| Burst Rate | 8fps mechanical, 20fps electronic | 30fps electronic | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~460 shots (CIPA) | 410 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 364g (body only) | 875g body only | 403g (body, battery, card) |
| Dimensions | 121.3 × 72.9 × 32.7mm | 146.0 × 104.0 × 42.0mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | Yes | No |
| Viewfinder | None — rear screen only (EVF accessory available) | 0.78" OLED EVF, 5.76M dots | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" fixed touchscreen, 1.62M dots | 3.2" fixed touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Fujifilm X-mount | Leica L-mount | Sony E-mount |
| Memory Cards | Single SD UHS-I | Dual SD UHS-II | Single SD UHS-I |
| Connectivity | USB-C, Bluetooth, Wi-Fi | USB-C 3.1, Wi-Fi, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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