OM System TG-7vs A5100
OM System
OM System TG-7 (2023)
Starting from £449 new
Best for Adventure, underwater & outdoor use
View OM System TG-7
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.
Casual & Travel — A5100 (2014): 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.
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
A5100 (2014)
- Beginners stepping up from a smartphone
- Compact travel photographers
- Casual vloggers who want APS-C quality
Quick take: The a5100 has the highest resolution at 24mp; the a5100 is the most affordable; only the om system tg-7 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM System TG-7 (2023) | A5100 (2014) |
|---|---|---|
| Price | £449 | £200 |
| Sensor | 12MP BSI CMOS | 24.3MP APS-C Exmor CMOS |
| Resolution | 12.0MP | 24.3MP |
| Video | 4K/30p, 1080p/120p | 1080p/60p |
| Autofocus | Hybrid phase/contrast AF | Hybrid phase-detect / contrast-detect AF, face detection |
| Stabilisation | Digital IS | None |
| Burst Rate | 20fps | 6fps |
| Battery Life | 340 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 253g | 224g (body only) |
| Dimensions | 113.0 × 66.5 × 32.7mm | 109.6 × 62.8 × 35.7mm |
| Weather Sealed | Yes | No |
| Viewfinder | None | None |
| Screen | 3.0" fixed TFT LCD | 3.0" flip-up touchscreen, 921k dots |
| Mount | Fixed 25mm-equiv f/2.0 lens (4× optical zoom) | Sony E-mount |
| Memory Cards | Single SD UHS-I | Single SD / MemoryStick PRO Duo slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | Micro USB, Wi-Fi, NFC |
Suitability by genre
| Genre | OM System TG-7 | A5100 |
|---|---|---|
| Adventure & Outdoor | — | |
| Underwater | — | |
| Travel | ||
| Family & Everyday | — | |
| Street | ||
| Portrait | ||
| Casual | — | |
| Vlogging & Video | — | |
| Landscape | — | |
| Sports & Action | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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