X100Svs A7R III
Sony
A7R III (2017)
Starting from £1799 new
Best for Landscape, studio & commercial photography
View A7R III
GearScore™ Verdict — Which should you buy?
Street & Travel — X100S (2013): The X100S was the moment the X100 series became legendary. Dramatically faster phase-detect AF, X-Trans II image quality, Fujifilm's film simulations, and the iconic hybrid viewfinder in a pocketable fixed-lens body — the blueprint every subsequent X100 has built on. A brilliant used-market buy for street and travel photographers who want the Fujifilm experience at an accessible price.
Landscape, Studio & Commercial Photography — A7R III (2017): The camera that converted professionals to mirrorless — 42MP, IBIS, and 10fps in a body that still competes today.
Who should buy what
X100S (2013)
- Street photographers who want the Fujifilm X100 experience on a budget
- Travel photographers who love a fixed focal length
- Film photography enthusiasts who want digital film simulations
- Used-market buyers stepping into the X100 series
A7R III (2017)
- Landscape and studio photographers who need 42MP resolution at a used-price discount vs A7R IV
- Canon/Nikon DSLR professionals considering a mirrorless switch at a lower investment
- Commercial and product photographers who want full-frame resolution with IBIS for handheld work
- Portrait photographers who want the sharpest possible full-frame files for large print work
Quick take: The a7r iii has the highest resolution at 42mp; the x100s is the most affordable; only the a7r iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | X100S (2013) | A7R III (2017) |
|---|---|---|
| Price | £250 | £1,799 |
| Sensor | 16.3MP APS-C X-Trans CMOS II | 42.4MP full-frame BSI Exmor R CMOS |
| Resolution | 16.3MP | 42.4MP |
| Video | 1080p/60p | 4K/30p (full-frame readout), 1080p/120p |
| Autofocus | Hybrid AF with sensor-embedded phase-detect + contrast-detect | 399 phase-detect + 425 contrast AF points — real-time Eye AF |
| Stabilisation | — | 5-axis IBIS — 5.5 stops |
| Burst Rate | 6fps | 10fps with AF/AE tracking |
| Battery Life | ~330 shots (CIPA) | ~650 shots (CIPA) |
| Weight | 445g (with battery and card) | 650g body only |
| Dimensions | 126.5 × 74.4 × 52.4mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | No | Yes |
| Viewfinder | Hybrid optical/electronic viewfinder | EVF, 3.69M dots, 0.78× magnification |
| Screen | 2.8" fixed LCD, 460k dots | 3.0" touchscreen, tilting |
| Mount | Fixed Fujinon 23mm f/2 (35mm equivalent) | Sony FE mount (full-frame E-mount) |
| Memory Cards | Single SD UHS-I slot | Dual SD slots (one UHS-II) |
| Connectivity | USB, Wi-Fi (via optional adapter) | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | X100S | A7R III |
|---|---|---|
| Street | ||
| Travel | — | |
| Casual | — | |
| Portrait | ||
| Landscape | ||
| Vlogging & Video | ||
| Wedding | — | |
| Sports | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history