Decision tools · Compare
A7 III vs A99 II
Quick take: The A99 II has the highest resolution at 42MP; the A99 II 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?
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
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 | A7 IIISony · 2018 | A99 IISony · 2016 |
|---|---|---|
| Price | £1,199 | £749 usedBest |
| Sensor | 24.2MP Full-Frame Exmor R BSI CMOS | 42.4MP full-frame sensor |
| Resolution | 24.2MP | 42.4MPBest |
| Video | 4K/30p (6K oversampled), 1080p/120p slow-motion | 4K/30p full-pixel readout, 1080p/120, S-Log2 / S-Log3 |
| Autofocus | Phase-detect, 693 points, real-time Eye AF & animal AF | 79-point Hybrid Cross phase-detect AF (dedicated sensor + 399-point on-sensor), Eye AF |
| Stabilisation | 5-axis IBIS, 5 stops | 4.5-stop 5-axis sensor-shift |
| Burst Rate | 10fps with AF/AE tracking | 12fps with AF/AE trackingBest |
| Battery Life | ~710 shots (CIPA)Best | ~490 shots (CIPA) |
| Weight | 565g (body only)Best | 849g (with battery and card) |
| Dimensions | 126.9 × 95.6 × 73.7mm | 142.6 × 104.2 × 76.1mm |
| Weather Sealed | YesBest | Not weather sealed |
| Viewfinder | EVF, 2.36M dots, 0.78× magnification | OLED EVF, 2.36M dots, 0.78x |
| Screen | 3.0" tilting touchscreen, 921k dots | 3.0" three-way tilting / swivel LCD, 1.23M dots |
| Mount | Sony E-mount | Sony A-mount |
| Memory Cards | Dual SD (UHS-II slot 1, UHS-I slot 2) | Dual slots: SD / Memory Stick + SD |
| Connectivity | USB-C (USB 3.2), Wi-Fi, Bluetooth, NFC | Multi / micro USB, micro HDMI, 3.5mm mic + headphone, Multi Interface Shoe, Wi-Fi, 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
A7 III
A99 II
Portrait
7.6/10
6.6/10
Street
6.2/10
5.2/10
Travel
6.1/10
4.6/10
Wedding & Events
7.5/10
6.2/10
Filmmaking
6.4/10
5.9/10
Documentary
6.8/10
5.0/10
Sports & Action
7.3/10
5.9/10
Landscape
6.2/10
5.8/10
Wildlife
7.5/10
5.7/10
Casual
5.3/10
3.5/10
Food
6.6/10
6.0/10
Macro
5.8/10
4.7/10
Architecture
6.1/10
6.2/10
Astrophotography
7.4/10
5.2/10
Vlogging & Video
—
4.3/10
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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