Olympus E-M1 III vs Sony RX100
67 Imaging
61 Features
96 Overall
75
91 Imaging
49 Features
68 Overall
56
Olympus E-M1 III vs Sony RX100 Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Fully Articulated Screen
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Maximum Shutter
- 4096 x 2160 video
- Micro Four Thirds Mount
- 580g - 134 x 91 x 69mm
- Launched February 2020
- Succeeded the Olympus E-M1 II
(Full Review)
- 20MP - 1" Sensor
- 3" Fixed Display
- ISO 100 - 25600
- Optical Image Stabilization
- 1920 x 1080 video
- 28-100mm (F1.8-4.9) lens
- 240g - 102 x 58 x 36mm
- Released August 2012
- Refreshed by Sony RX100 II
Snapchat Adds Watermarks to AI-Created Images Olympus E-M1 III vs Sony RX100 Overview
On this page, we are reviewing the Olympus E-M1 III versus Sony RX100, former being a Pro Mirrorless while the other is a Large Sensor Compact by companies Olympus and Sony. The resolution of the E-M1 III (20MP) and the RX100 (20MP) is very close but the E-M1 III (Four Thirds) and RX100 (1") provide totally different sensor measurements.
Pentax 17 Pre-Orders Outperform Expectations by a LandslideThe E-M1 III was revealed 7 years later than the RX100 and that is a fairly big difference as far as camera technology is concerned. Both cameras have different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony RX100 being a Large Sensor Compact camera.
Before delving into a comprehensive comparison, here is a simple summary of how the E-M1 III scores vs the RX100 with regards to portability, imaging, features and an overall rating.
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This is a sample of the gallery pics for Olympus OM-D E-M1 Mark III & Sony Cyber-shot DSC-RX100. The full galleries are available at Olympus E-M1 III Gallery & Sony RX100 Gallery.
Reasons to pick Olympus E-M1 III over the Sony RX100
| E-M1 III | RX100 | |||
|---|---|---|---|---|
| Released | February 2020 | August 2012 | Fresher by 91 months | |
| Display type | Fully Articulated | Fixed | Fully Articulating display | |
| Selfie screen | Take selfies | |||
| Touch friendly display | Easily navigate |
Reasons to pick Sony RX100 over the Olympus E-M1 III
| RX100 | E-M1 III | |||
|---|---|---|---|---|
| Display resolution | 1229k | 1037k | Sharper display (+192k dot) |
Common features in the Olympus E-M1 III and Sony RX100
| E-M1 III | RX100 | |||
|---|---|---|---|---|
| Manually focus | Very accurate focus | |||
| Display dimensions | 3" | 3" | Equal display measurements |
Olympus E-M1 III vs Sony RX100 Physical Comparison
For anybody who is going to carry your camera, you're going to have to think about its weight and size. The Olympus E-M1 III offers exterior measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) whilst the Sony RX100 has specifications of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") having a weight of 240 grams (0.53 lbs).
Check the Olympus E-M1 III versus Sony RX100 in our completely new Camera & Lens Size Comparison Tool.
Take into consideration, the weight of an ILC will change depending on the lens you are employing during that time. Following is a front view proportions comparison of the E-M1 III and the RX100.

Taking into consideration dimensions and weight, the portability score of the E-M1 III and RX100 is 67 and 91 respectively.
Olympus E-M1 III vs Sony RX100 Sensor Comparison
Typically, it's hard to visualise the difference in sensor sizing just by viewing specs. The photograph below will help offer you a greater sense of the sensor measurements in the E-M1 III and RX100.
All in all, each of the cameras have the same megapixel count but not the same sensor sizing. The E-M1 III includes the larger sensor which will make achieving shallower DOF simpler. The fresher E-M1 III will have an edge with regard to sensor innovation.
Olympus E-M1 III vs Sony RX100 Screen and ViewFinder
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Olympus E-M1 III vs Sony RX100 Specifications
| Olympus OM-D E-M1 Mark III | Sony Cyber-shot DSC-RX100 | |
|---|---|---|
| General Information | ||
| Company | Olympus | Sony |
| Model | Olympus OM-D E-M1 Mark III | Sony Cyber-shot DSC-RX100 |
| Class | Pro Mirrorless | Large Sensor Compact |
| Launched | 2020-02-11 | 2012-08-28 |
| Body design | SLR-style mirrorless | Large Sensor Compact |
| Sensor Information | ||
| Processor Chip | TruePic IX | - |
| Sensor type | CMOS | CMOS |
| Sensor size | Four Thirds | 1" |
| Sensor dimensions | 17.4 x 13mm | 13.2 x 8.8mm |
| Sensor surface area | 226.2mm² | 116.2mm² |
| Sensor resolution | 20 megapixel | 20 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | 4:3 | 1:1, 4:3, 3:2 and 16:9 |
| Full resolution | 5184 x 3888 | 5472 x 3648 |
| Max native ISO | 25600 | 25600 |
| Minimum native ISO | 200 | 100 |
| RAW photos | ||
| Minimum boosted ISO | 64 | - |
| Autofocusing | ||
| Focus manually | ||
| Touch to focus | ||
| Continuous AF | ||
| Single AF | ||
| Tracking AF | ||
| AF selectice | ||
| AF center weighted | ||
| AF multi area | ||
| Live view AF | ||
| Face detection AF | ||
| Contract detection AF | ||
| Phase detection AF | ||
| Number of focus points | 121 | 25 |
| Cross focus points | 121 | - |
| Lens | ||
| Lens mounting type | Micro Four Thirds | fixed lens |
| Lens focal range | - | 28-100mm (3.6x) |
| Max aperture | - | f/1.8-4.9 |
| Macro focus distance | - | 5cm |
| Total lenses | 107 | - |
| Crop factor | 2.1 | 2.7 |
| Screen | ||
| Range of screen | Fully Articulated | Fixed Type |
| Screen sizing | 3 inch | 3 inch |
| Resolution of screen | 1,037 thousand dot | 1,229 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch operation | ||
| Screen technology | - | WhiteMagic TFT LCD |
| Viewfinder Information | ||
| Viewfinder type | Electronic | None |
| Viewfinder resolution | 2,360 thousand dot | - |
| Viewfinder coverage | 100% | - |
| Viewfinder magnification | 0.74x | - |
| Features | ||
| Slowest shutter speed | 60 seconds | 30 seconds |
| Maximum shutter speed | 1/8000 seconds | 1/2000 seconds |
| Maximum silent shutter speed | 1/32000 seconds | - |
| Continuous shooting speed | 60.0 frames per second | 10.0 frames per second |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Custom WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash range | no built-in flash | - |
| Flash modes | Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual | Auto, On, Off, Slow Sync |
| External flash | ||
| AEB | ||
| White balance bracketing | ||
| Maximum flash sync | 1/250 seconds | 1/2000 seconds |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Supported video resolutions | 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 25p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 23.98p / 102 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 60p, MOV, H.264, Linear PCM1920 x 1080 @ 50p, MOV, H.264, Linear PCM1920 x 1080 @ 30p, MOV, H.264, Linear PCM1920 x 1080 @ 25p, MOV, H.264, Linear PCM1920 x 1080 @ 23.98p, MOV, H.264, Linear PCM | 1920 x 1080 (60 fps), 1440 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps) |
| Max video resolution | 4096x2160 | 1920x1080 |
| Video format | MPEG-4, H.264 | MPEG-4, AVCHD |
| Mic jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | Built-In | Eye-Fi Connected |
| 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 proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 580g (1.28 lb) | 240g (0.53 lb) |
| Physical dimensions | 134 x 91 x 69mm (5.3" x 3.6" x 2.7") | 102 x 58 x 36mm (4.0" x 2.3" x 1.4") |
| DXO scores | ||
| DXO All around score | not tested | 66 |
| DXO Color Depth score | not tested | 22.6 |
| DXO Dynamic range score | not tested | 12.4 |
| DXO Low light score | not tested | 390 |
| Other | ||
| Battery life | 420 photos | 330 photos |
| Form of battery | Battery Pack | Battery Pack |
| Battery model | BLH-1 | NP-BX1 |
| Self timer | Yes (2 or 12 secs, custom) | Yes (2 or 10 sec, Portrait 1/2) |
| Time lapse recording | With downloadable app | |
| Storage media | Dual SD/SDHC/SDXC slots (UHS-II on first slot) | SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo |
| Storage slots | Dual | 1 |
| Launch pricing | $1,800 | $448 |