Olympus E-M10 OM System OM-D E-M10 Mark IV 20.3 Megapixel Review
The Olympus E-M10 Mark IV is built like a miniature tank and has best-in-class stabilization, but its smaller sensor means image quality takes a back seat to portability.
Overview
The Olympus OM-D E-M10 Mark IV is a bit of a contradiction, and that's what makes it interesting. It's a tiny, 335g camera body that somehow scores in the 98th percentile for build quality. That means it feels way more solid and premium than anything this small has a right to. But the story splits from there. It's built like a tank, connects like a champ with 89th percentile Wi-Fi and Bluetooth, and its 5-axis stabilization is top-tier. Yet, its core imaging hardware—the sensor and autofocus—lands in the bottom half of the pack.
Performance
Performance depends entirely on what you're doing. For action? Its 15fps mechanical burst speed is in the 85th percentile, which is seriously quick for a camera in this class. That 89th percentile stabilization means you can handhold shots at slow shutter speeds you'd normally need a tripod for. But the 34th percentile sensor score tells you image quality, especially in low light, won't compete with larger-sensor rivals. The 45th percentile autofocus is fine for casual use but won't keep up with fast-moving subjects reliably. Video is a clear weak spot at the 36th percentile, so this isn't your first pick for serious filmmaking.
Pros & Cons
Pros
- Strong build (98th percentile) 95th
- Strong connectivity (89th percentile) 89th
- Strong stabilization (89th percentile) 86th
- Strong burst (85th percentile) 83th
Cons
- Below average sensor (34th percentile) 10th
Specifications
Full Specifications
Sensor
| Type | 17.4 x 13 mm (Four Thirds) MOS |
| Megapixels | 21.8 |
| ISO Range | 200 |
| Processor | TruePic VIII |
Autofocus
| AF Type | Focusing SystemMethod: Contrast Detection AF systemPredictive AF |
Shooting
| Burst (Mechanical) | 15 |
| Max Shutter | 1/16000 |
| Electronic Shutter | Yes |
Video
| Max Resolution | 4K |
Display & EVF
| Screen Size | 3 |
| Touchscreen | Yes |
| Articulating | No |
| EVF Resolution | 2360000 |
Build
| Weight | 0.3 kg / 0.7 lbs |
Connectivity
| Wi-Fi | Yes |
| Bluetooth | Yes |
| USB | USB-2.0 |
| HDMI | Micro HDMI |
| Hot Shoe | Yes |
Value & Pricing
At $699, the value proposition is all about priorities. You're paying a premium for that incredible build, portability, and stabilization system. If you want the smallest, toughest-feeling camera with great stabilization, it's a solid deal. But if pure image quality or advanced video is your goal, that money goes further with competitors that have larger sensors and better autofocus, even if they feel a bit cheaper.
Price History
vs Competition
Compared directly, the Sony ZV-E10 II is its video-focused rival, with much better autofocus and video features but less robust build. The Fujifilm X-E5 offers a larger APS-C sensor for better image quality and that classic dial-based control, though its burst shooting is slower. The Canon EOS R6 Mark II is in a different league entirely for both stills and video, but it's also heavier and costs over twice as much. The E-M10 Mark IV's niche is being the durable, stabilised, pocketable option that sacrifices some sensor performance for that unique blend.
| Spec | Olympus E-M10 OM System OM-D E-M10 Mark IV 20.3 Megapixel | Nikon Z9 Nikon Z 9 FX-Format Mirrorless Camera Body | Sony Alpha 7 Sony a7 IV Mirrorless Camera with 28-70mm | Canon EOS R6 Canon EOS R6 Mark II Body | OM System OM-1 OM SYSTEM OM-1 Mark II Mirrorless Camera | Fujifilm X-H2 Fujifilm X-H2 Mirrorless Camera, Black |
|---|---|---|---|---|---|---|
| Type | Mirrorless | Mirrorless | Mirrorless | Mirrorless | Mirrorless | Mirrorless |
| Sensor | 21.8MP | 45.7MP Full Frame | 33MP Full Frame | 24.2MP Full Frame | 22.9MP Micro Four Thirds | 40.2MP APS-C |
| AF Points | — | — | 759 | 1000 | 1053 | — |
| Burst FPS | 15 | 30 | 10 | 40 | 120 | 20 |
| Video | 4K | 8K | 4K | 4K | 4K | 8K |
| IBIS | true | true | true | true | true | true |
| Weather Sealed | false | true | true | true | true | true |
| Weight (g) | 335 | 1338 | 635 | 590 | 62 | 1660 |
Verdict
This camera is a fantastic, no-compromises pick for a specific traveler or casual shooter. If your top needs are a camera that feels indestructible, fits in a jacket pocket, has rock-solid stabilization for handheld shots, and connects seamlessly to your phone, it's a winner. But if low-light performance, tracking autofocus, or high-quality video are your main concerns, its weaker sensor and autofocus scores mean you should look at APS-C competitors like the Fujifilm or even the Sony ZV-E10 II instead.