Decision tools · Compare
A6100 vs A7 III
Quick take: The A6100 is the most affordable; only the A7 III is weather sealed.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
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Verdictwhich should you buy?
A6100 — Beginner, Family, Travel: Best autofocus in its class for the price.
A7 III — All-Round Photography & Video: Still one of the best all-round cameras money can buy — particularly strong used. The A7 III proved that full-frame doesn't have to mean compromises, and nothing at this price point has meaningfully beaten it.
Who should buy what
A6100 (2019)
is the right camera for you if…
- First-time mirrorless buyers who want solid AF
- Families stepping up from a smartphone
A7 III (2018)
is the right camera for you if…
- Enthusiast photographers upgrading from APS-C for the first time
- Working photographers who need reliable AF and weather sealing
- Anyone who shoots in low light regularly
- Hybrid shooters needing both stills and video performance
Full specificationsthe better value in each row is highlighted
| Specification | A6100Sony · 2019 | A7 IIISony · 2018 |
|---|---|---|
| Price | £649Best | £1,099 |
| Sensor | APS-C Exmor CMOS | 24.2MP Full-Frame Exmor R BSI CMOS |
| Resolution | 24.2MP | 24.2MP |
| Video | 4K 30fps | 4K/30p (6K oversampled), 1080p/120p slow-motion |
| Autofocus | 425-point phase-detect, real-time tracking | Phase-detect, 693 points, real-time Eye AF & animal AF |
| Stabilisation | No stabilisation | 5-axis IBIS, 5 stops |
| Burst Rate | 11fpsBest | 10fps with AF/AE tracking |
| Battery Life | 420 shots (CIPA) | ~710 shots (CIPA)Best |
| Weight | 396g (body only)Best | 565g (body only) |
| Dimensions | 119.9 × 66.9 × 59.4mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | Not weather sealed | YesBest |
| Viewfinder | EVF 0.39" 1.44M-dot | EVF, 2.36M dots, 0.78× magnification |
| Screen | 3.0" tilting touchscreen, 921k-dot | 3.0" tilting touchscreen, 921k dots |
| Mount | Sony E-Mount | Sony E-mount |
| Memory Cards | SD UHS-I / Memory Stick | Dual SD (UHS-II slot 1, UHS-I slot 2) |
| Connectivity | Wi-Fi, Bluetooth 4.1, Micro USB, Micro HDMI | USB-C (USB 3.2), Wi-Fi, Bluetooth, NFC |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
A6100
A7 III
Portrait
6.7/10
7.6/10
Street
7.3/10
6.2/10
Travel
6.4/10
6.3/10
Wedding & Events
5.1/10
7.5/10
Vlogging & Video
6.2/10
—
Filmmaking
4.9/10
6.4/10
Documentary
5.2/10
6.8/10
Sports & Action
6.5/10
7.3/10
Landscape
4.9/10
6.2/10
Wildlife
6.9/10
7.5/10
Casual
6.4/10
5.4/10
Food
6.2/10
6.6/10
Macro
5.2/10
5.8/10
Architecture
5.5/10
6.1/10
Astrophotography
6.0/10
7.4/10
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 →
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