Decision tools · Compare
S1R II vs A5100
Quick take: The S1R II has the highest resolution at 44MP; the A5100 is the most affordable; only the S1R II is weather sealed.
16 specs side by side·16 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?
A5100 — Casual & Travel: 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
A5100 (2014)
is the right camera for you if…
- Beginners stepping up from a smartphone
- Compact travel photographers
- Casual vloggers who want APS-C quality
Full specificationsthe better value in each row is highlighted
| Specification | S1R IILumix · 2025 | A5100Sony · 2014 |
|---|---|---|
| Price | £2,699 | £200Best |
| Sensor | 44.3MP full-frame BSI CMOS | 24.3MP APS-C Exmor CMOS |
| Resolution | 44.3MPBest | 24.3MP |
| Video | 8K/30p (first for Lumix), 4K/120p (1.1x crop), 10-bit | 1080p/60p |
| Autofocus | Phase-hybrid AF (779 points) with AI subject detection | Hybrid phase-detect / contrast-detect AF, face detection |
| Stabilisation | 8-stop IBIS with Dual I.S. 2 | No stabilisation |
| Burst Rate | 40fps electronicBest | 6fps |
| Battery Life | 350 shots (CIPA, LCD) | ~400 shots (CIPA)Best |
| Weight | 820g (with battery and card) | 224g (body only)Best |
| Dimensions | — | 109.6 × 62.8 × 35.7mm |
| Weather Sealed | YesBest | Not weather sealed |
| Viewfinder | EVF, 5.76M dots | No viewfinder |
| Screen | Fully articulating touchscreen | 3.0" flip-up touchscreen, 921k dots |
| Mount | L-mount | Sony E-mount |
| Memory Cards | CFexpress Type B + SD (UHS-II) | Single SD / MemoryStick PRO Duo slot |
| Connectivity | USB-C, full-size HDMI, Wi-Fi, Bluetooth | Micro USB, 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
S1R II
A5100
Portrait
8.8/10
5.4/10
Street
6.3/10
7.0/10
Travel
6.2/10
6.7/10
Wedding & Events
8.4/10
3.5/10
Vlogging & Video
6.1/10
5.0/10
Filmmaking
7.7/10
—
Documentary
7.9/10
4.1/10
Sports & Action
8.3/10
4.7/10
Landscape
7.7/10
5.0/10
Wildlife
8.3/10
5.5/10
Casual
5.2/10
5.1/10
Food
8.3/10
5.9/10
Macro
8.8/10
5.2/10
Architecture
8.1/10
5.2/10
Astrophotography
7.1/10
4.7/10
Fun & simple
—
4.5/10
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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