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Quick take: The A5100 has the highest resolution at 24MP; the A5100 is the most affordable.
Where the X-A7 wins
Where the A5100 wins
16 specs side by side·16 genres scored·UK prices from Wex Photo Video and Clifton Cameras
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X-A7 — Beginner Fujifilm: The most affordable X-mount entry — Fujifilm colour and film simulations with a large flip screen for beginners.
A5100 — Casual & Travel: The A5100 is one of the smallest APS-C mirrorless cameras ever made. Its 24MP sensor, phase-detect AF, and selfie-friendly flip screen pack remarkable capability into a shirt-pocket-sized body. No EVF or hot shoe limits it for serious use, but as a compact travel camera or beginner's first mirrorless, it punches well above its price on the used market.
| Specification | X-A7Fujifilm · 2019 | A5100Sony · 2014 |
|---|---|---|
| Price | £228 used | £102 usedBest |
| Sensor | 24.2MP APS-C CMOS (Bayer, not X-Trans) | 24.3MP APS-C Exmor CMOS |
| Resolution | 24.2MP | 24.3MPBest |
| Video | 4K/30p, 1080p/60p | 1080p/60p |
| Autofocus | Phase-detect + contrast, 425 points | Hybrid phase-detect / contrast-detect AF, face detection |
| Stabilisation | No stabilisation | No stabilisation |
| Burst Rate | 6fps | 6fps |
| Battery Life | ~270 shots (CIPA, normal mode) | ~400 shots (CIPA)Best |
| Weight | 320g (body only) | 224g (body only)Best |
| Dimensions | 118.0 × 80.6 × 55.2mm | 109.6 × 62.8 × 35.7mm |
| Weather Sealed | Not weather sealed | Not weather sealed |
| Viewfinder | No viewfinder | No viewfinder |
| Screen | 3.5" fully articulating touchscreen | 3.0" flip-up touchscreen, 921k dots |
| Mount | Fujifilm X-mount | Sony E-mount |
| Memory Cards | Single SD UHS-I slot | Single SD / MemoryStick PRO Duo slot |
| Connectivity | USB Micro-B, Bluetooth, Wi-Fi, micro HDMI | Micro USB, Wi-Fi, NFC |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
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 →