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.

Type Mirrorless
Sensor 21.8MP
Burst FPS 15 fps
Video 4K
IBIS Yes
Weather Sealed No
Weight 335 g
Olympus E-M10 OM System OM-D E-M10 Mark IV 20.3 Megapixel camera
59.5 Overall Score

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.

Performance Percentiles

AF 43.7
EVF 94.7
Build 9.8
Burst 83.3
Video 69.8
Sensor 57.2
Battery 49.5
Display 85.8
Connectivity 78.7
Social Proof 61.1
Stabilization 88.8

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

$500 $550 $600 $650 $700 $750 Mar 6Mar 16 $551

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.