OM System TG-7vs A1 II
OM System
OM System TG-7 (2023)
Starting from £449 new
Best for Adventure, underwater & outdoor use
View OM System TG-7
Sony
A1 II (2025)
Starting from £6500 new
Best for Professional sports, wildlife & high-resolution studio work
View A1 II
GearScore™ Verdict — Which should you buy?
Adventure, Underwater & Outdoor Use — OM System TG-7 (2023): Waterproof to 15m, freezeproof and shockproof — the TG-7 is the most capable rugged compact for adventure and outdoor use.
Professional Sports, Wildlife & High-Resolution Studio Work — A1 II (2025): The most complete camera ever made — 50MP, 30fps, 8K, and the world's best EVF in a single flagship body.
Who should buy what
OM System TG-7 (2023)
- Divers and snorkellers who need a waterproof camera without a housing
- Outdoor and adventure photographers who want a rugged pocket compact
- Parents who want an indestructible camera for children and family adventures
- Travellers who want a tough backup camera that can go anywhere
A1 II (2025)
- Professional sports and wildlife photographers who need 30fps, 50MP, and the best AF available
- Commercial and advertising photographers who demand 50MP resolution alongside pro video specs
- Photojournalists who need a single body capable of handling every assignment
- Sony system shooters ready to invest in the absolute best
Quick take: The a1 ii has the highest resolution at 50mp; the om system tg-7 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM System TG-7 (2023) | A1 II (2025) |
|---|---|---|
| Price | £449 | £6,500 |
| Sensor | 12MP BSI CMOS | 50.1MP full-frame stacked BSI CMOS |
| Resolution | 12.0MP | 50.1MP |
| Video | 4K/30p, 1080p/120p | 8K/30p, 4K/120p 10-bit, 4K/240p super slow-motion |
| Autofocus | Hybrid phase/contrast AF | AI subject recognition — human, animal, bird, insect, vehicle, aircraft, train |
| Stabilisation | Digital IS | 8.5-stop IBIS (with in-lens OSS) |
| Burst Rate | 20fps | 30fps electronic (with full AF/AE), 10fps mechanical |
| Battery Life | 340 shots (CIPA) | ~530 shots (CIPA) |
| Weight | 253g | 743g body only |
| Dimensions | 113.0 × 66.5 × 32.7mm | 136.1 × 96.9 × 82.9mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | None | EVF 0.9× 9.44M-dot — the highest resolution EVF available |
| Screen | 3.0" fixed TFT LCD | 3.2" fully articulating touchscreen, 2.1M dots |
| Mount | Fixed 25mm-equiv f/2.0 lens (4× optical zoom) | Sony E-mount (full-frame) |
| Memory Cards | Single SD UHS-I | Dual CFexpress Type A / SD UHS-II slots |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C 3.2 Gen 2, Wi-Fi 6GHz, Bluetooth 5.3, HDMI full-size |
Suitability by genre
| Genre | OM System TG-7 | A1 II |
|---|---|---|
| Adventure & Outdoor | — | |
| Underwater | — | |
| Travel | ||
| Family & Everyday | — | |
| Street | — | |
| Portrait | ||
| Sports | — | |
| Wildlife | — | |
| Landscape | — | |
| Vlogging & Video | — |
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