OM-D E-M10 IVvs A7R IV
VS
GearScore™ Verdict — Which should you buy?
Travel & Everyday — OM-D E-M10 IV (2020): Compact Micro Four Thirds body with built-in IBIS — ideal for travellers who want stability without bulk.
Landscape, Studio, Commercial — A7R IV (2019): 61MP in a mirrorless body — the resolution benchmark.
Who should buy what
OM-D E-M10 IV (2020)
- Beginners and enthusiasts who want a compact, stylish Micro Four Thirds camera
- Travellers who want a small, light system without sacrificing image quality
- Smartphone upgraders who want a proper camera that still fits in a bag
- Anyone who wants built-in selfie capability in a traditional camera body
A7R IV (2019)
- Landscape photographers who print large
- Studio shooters needing maximum detail
Quick take: The a7r iv has the highest resolution at 61mp; the om-d e-m10 iv is the most affordable; only the a7r iv is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM-D E-M10 IV (2020) | A7R IV (2019) |
|---|---|---|
| Price | £469 | £2,199 |
| Sensor | 20.3MP Micro Four Thirds Live MOS | Full-frame BSI Exmor R CMOS 35mm |
| Resolution | 20.3MP | 61.0MP |
| Video | 4K/30p, 1080p/60p | 4K 30fps |
| Autofocus | Phase-detect + contrast detect, 121 points | 567-point phase-detect, real-time tracking |
| Stabilisation | 5-axis IBIS, 4.5 stops | 5-axis IBIS, 5.5 stops |
| Burst Rate | 15fps | 10fps |
| Battery Life | ~360 shots (CIPA) | 670 shots (CIPA) |
| Weight | 383g body only | 665g (body only) |
| Dimensions | 121.4 × 83.6 × 49.0mm | 128.9 × 96.4 × 77.5mm |
| Weather Sealed | No | Yes |
| Viewfinder | EVF, 2.36M dots, 0.46× magnification | EVF 0.78× 5.76M-dot |
| Screen | 3.0" tilting touchscreen | 3.0" tilting touchscreen, 1.44M-dot |
| Mount | Micro Four Thirds | Sony E-Mount |
| Memory Cards | Single SD UHS-I slot | 2× SD UHS-II / CFexpress Type A |
| Connectivity | USB Micro-B, Bluetooth, Wi-Fi, micro HDMI | Wi-Fi 5GHz, Bluetooth 4.1, USB-C 3.2 |
Suitability by genre
| Genre | OM-D E-M10 IV | A7R IV |
|---|---|---|
| Travel | — | |
| Street | — | |
| Family & Everyday | — | |
| Portrait | — | |
| Landscape | — | |
| Sports & Action | — |
More comparisons with OM-D E-M10 IV
Camera family history