OM System OM-1 vs Olympus E-M5 III
65 Imaging
63 Features
96 Overall
76


80 Imaging
61 Features
88 Overall
71
OM System OM-1 vs Olympus E-M5 III Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3.00" Fully Articulated Screen
- ISO 200 - 25600 (Boost to 102400)
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Max Shutter
- 4096 x 2160 video
- Micro Four Thirds Mount
- 599g - 135 x 92 x 73mm
- Released February 2022
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Fully Articulated Screen
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 4096 x 2160 video
- Micro Four Thirds Mount
- 414g - 125 x 85 x 50mm
- Introduced October 2019
- Succeeded the Olympus E-M5 II
- Refreshed by OM System OM-5

OM System OM-1 vs Olympus E-M5 III Overview
Below is a thorough review of the OM System OM-1 vs Olympus E-M5 III, former being a Pro Mirrorless while the latter is a Advanced Mirrorless and they are both manufactured by Olympus. The sensor resolution of the OM System OM-1 (20MP) and the E-M5 III (20MP) is relatively close and they feature the exact same sensor measurements (Four Thirds).

The OM System OM-1 was manufactured 2 years later than the E-M5 III and that is a fairly large difference as far as camera tech is concerned. The two cameras come with the identical body type (SLR-style mirrorless).
Before getting straight into a in depth comparison, below is a quick view of how the OM System OM-1 scores against the E-M5 III with regards to portability, imaging, features and an overall grade.

OM System OM-1 vs Olympus E-M5 III Gallery
This is a preview of the gallery photos for OM System OM-1 & Olympus OM-D E-M5 III. The entire galleries are available at OM System OM-1 Gallery & Olympus E-M5 III Gallery.
Reasons to pick OM System OM-1 over the Olympus E-M5 III
OM System OM-1 | E-M5 III | |||
---|---|---|---|---|
Introduced | February 2022 | ![]() | October 2019 | More recent by 29 months |
Screen resolution | 1620k | ![]() | 1040k | Crisper screen (+580k dot) |
Reasons to pick Olympus E-M5 III over the OM System OM-1
E-M5 III | OM System OM-1 |
---|
Common features in the OM System OM-1 and Olympus E-M5 III
OM System OM-1 | E-M5 III | |||
---|---|---|---|---|
Manual focus | ![]() | Very precise focusing | ||
Screen type | Fully Articulated | ![]() | Fully Articulated | Fully Articulated screen |
Screen dimension | 3.00" | ![]() | 3" | Identical screen measurements |
Selfie screen | ![]() | Both good for selfies | ||
Touch friendly screen | ![]() | Quickly navigate |
OM System OM-1 vs Olympus E-M5 III Physical Comparison
In case you're looking to lug around your camera frequently, you should take into account its weight and dimensions. The OM System OM-1 has got outer measurements of 135mm x 92mm x 73mm (5.3" x 3.6" x 2.9") having a weight of 599 grams (1.32 lbs) while the Olympus E-M5 III has dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") along with a weight of 414 grams (0.91 lbs).
Analyze the OM System OM-1 vs Olympus E-M5 III in our newest Camera & Lens Size Comparison Tool.
Remember, the weight of an ILC will change dependant on the lens you are working with at that time. Below is the front view over all size comparison of the OM System OM-1 against the E-M5 III.

Looking at size and weight, the portability rating of the OM System OM-1 and E-M5 III is 65 and 80 respectively.

OM System OM-1 vs Olympus E-M5 III Sensor Comparison
Often, it's difficult to see the contrast in sensor measurements simply by looking through a spec sheet. The visual here may offer you a stronger sense of the sensor measurements in the OM System OM-1 and E-M5 III.
Clearly, each of the cameras posses the exact same sensor measurements and the exact same MP and you can expect comparable quality of photographs however you have to consider the launch date of the cameras into account. The younger OM System OM-1 is going to have a benefit with regard to sensor tech.

OM System OM-1 vs Olympus E-M5 III Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

OM System OM-1 vs Olympus E-M5 III Specifications
OM System OM-1 | Olympus OM-D E-M5 III | |
---|---|---|
General Information | ||
Brand Name | Olympus | Olympus |
Model type | OM System OM-1 | Olympus OM-D E-M5 III |
Type | Pro Mirrorless | Advanced Mirrorless |
Released | 2022-02-15 | 2019-10-17 |
Body design | SLR-style mirrorless | SLR-style mirrorless |
Sensor Information | ||
Processor | - | TruePic VIII |
Sensor type | Stacked BSI Live MOS Sensor | MOS |
Sensor size | Four Thirds | Four Thirds |
Sensor measurements | 17.4 x 13mm | 17.4 x 13mm |
Sensor area | 226.2mm² | 226.2mm² |
Sensor resolution | 20 megapixel | 20 megapixel |
Anti alias filter | ||
Aspect ratio | 4:3 | 1:1, 4:3, 3:2 and 16:9 |
Maximum resolution | 5184 x 3888 | 5184 x 3888 |
Maximum native ISO | 25600 | 25600 |
Maximum boosted ISO | 102400 | - |
Minimum native ISO | 200 | 200 |
RAW support | ||
Minimum boosted ISO | 80 | 64 |
Autofocusing | ||
Focus manually | ||
Touch focus | ||
Autofocus continuous | ||
Single autofocus | ||
Autofocus tracking | ||
Selective autofocus | ||
Autofocus center weighted | ||
Multi area autofocus | ||
Autofocus live view | ||
Face detection focus | ||
Contract detection focus | ||
Phase detection focus | ||
Total focus points | 1053 | 121 |
Cross type focus points | 1053 | - |
Lens | ||
Lens mount type | Micro Four Thirds | Micro Four Thirds |
Available lenses | 118 | 107 |
Crop factor | 2.1 | 2.1 |
Screen | ||
Screen type | Fully Articulated | Fully Articulated |
Screen diagonal | 3.00" | 3" |
Screen resolution | 1,620 thousand dot | 1,040 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch operation | ||
Viewfinder Information | ||
Viewfinder | Electronic | Electronic |
Viewfinder resolution | 5,760 thousand dot | 2,360 thousand dot |
Viewfinder coverage | 100% | 100% |
Viewfinder magnification | 0.83x | 0.68x |
Features | ||
Slowest shutter speed | 60s | 60s |
Maximum shutter speed | 1/8000s | 1/8000s |
Maximum silent shutter speed | 1/32000s | 1/32000s |
Continuous shooting speed | 10.0 frames per sec | 30.0 frames per sec |
Shutter priority | ||
Aperture priority | ||
Expose Manually | ||
Exposure compensation | Yes | Yes |
Custom white balance | ||
Image stabilization | ||
Built-in flash | ||
Flash distance | no built-in flash | no built-in flash |
Flash options | Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual | Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual |
Hot shoe | ||
Auto exposure bracketing | ||
WB bracketing | ||
Maximum flash sync | 1/250s | 1/250s |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Video resolutions | - | 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM |
Maximum video resolution | 4096x2160 | 4096x2160 |
Video file format | MPEG-4, H.264, H.265, HEVC | MPEG-4, H.264 |
Microphone input | ||
Headphone input | ||
Connectivity | ||
Wireless | Built-In | Built-In |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 3.1 Gen 1 (5 GBit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | None | None |
Physical | ||
Environment seal | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 599 grams (1.32 lbs) | 414 grams (0.91 lbs) |
Dimensions | 135 x 92 x 73mm (5.3" x 3.6" x 2.9") | 125 x 85 x 50mm (4.9" x 3.3" x 2.0") |
DXO scores | ||
DXO All around rating | not tested | not tested |
DXO Color Depth rating | not tested | not tested |
DXO Dynamic range rating | not tested | not tested |
DXO Low light rating | not tested | not tested |
Other | ||
Battery life | 520 photos | 310 photos |
Battery format | Battery Pack | Battery Pack |
Battery ID | BLX-1 | BLN-1 |
Self timer | Yes (2 or 12 secs, custom) | Yes (2 or 10 secs, custom) |
Time lapse feature | ||
Type of storage | Dual SD/SDHC/SDXC slots (UHS-II on first slot) | SD/SDHC/SDXC (UHS-II supported) |
Storage slots | 2 | One |
Launch price | $2,199 | $1,199 |