Olympus E-M5 II vs Sony A7 IV
80 Imaging
53 Features
84 Overall
65


61 Imaging
80 Features
92 Overall
84
Olympus E-M5 II vs Sony A7 IV Key Specs
(Full Review)
- 16MP - Four Thirds Sensor
- 3" Fully Articulated Screen
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Micro Four Thirds Mount
- 469g - 124 x 85 x 45mm
- Introduced February 2015
- Earlier Model is Olympus E-M5
- Later Model is Olympus E-M5 III
(Full Review)
- 33MP - Full frame Sensor
- 3" Fully Articulated Screen
- ISO 100 - 51200 (Raise to 204800)
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 3840 x 2160 video
- Sony E Mount
- 699g - 129 x 97 x 81mm
- Revealed October 2021
- Succeeded the Sony A7 III

Olympus E-M5 II vs Sony A7 IV Overview
On this page, we will be matching up the Olympus E-M5 II vs Sony A7 IV, former is a Advanced Mirrorless while the latter is a Pro Mirrorless by manufacturers Olympus and Sony. There is a noticeable difference among the image resolutions of the E-M5 II (16MP) and A7 IV (33MP) and the E-M5 II (Four Thirds) and A7 IV (Full frame) provide totally different sensor sizing.

The E-M5 II was brought out 7 years prior to the A7 IV which is a fairly sizable difference as far as camera tech is concerned. Each of these cameras have the same body design (SLR-style mirrorless).
Before going right into a detailed comparison, here is a simple introduction of how the E-M5 II grades versus the A7 IV with respect to portability, imaging, features and an overall mark.

Olympus E-M5 II vs Sony A7 IV Gallery
Below is a preview of the gallery images for Olympus OM-D E-M5 II & Sony Alpha A7 IV. The entire galleries are available at Olympus E-M5 II Gallery & Sony A7 IV Gallery.
Reasons to pick Olympus E-M5 II over the Sony A7 IV
E-M5 II | A7 IV |
---|
Reasons to pick Sony A7 IV over the Olympus E-M5 II
A7 IV | E-M5 II | |||
---|---|---|---|---|
Revealed | October 2021 | ![]() | February 2015 | Newer by 81 months |
Screen resolution | 1440k | ![]() | 1037k | Crisper screen (+403k dot) |
Common features in the Olympus E-M5 II and Sony A7 IV
E-M5 II | A7 IV | |||
---|---|---|---|---|
Manually focus | ![]() | More accurate focusing | ||
Screen type | Fully Articulated | ![]() | Fully articulated | Fully Articulated screen |
Screen dimensions | 3" | ![]() | 3" | Equal screen measurement |
Selfie screen | ![]() | Both good for selfies | ||
Touch friendly screen | ![]() | Quickly navigate |
Olympus E-M5 II vs Sony A7 IV Physical Comparison
For anyone who is planning to travel with your camera, you will have to consider its weight and size. The Olympus E-M5 II comes with exterior measurements of 124mm x 85mm x 45mm (4.9" x 3.3" x 1.8") accompanied by a weight of 469 grams (1.03 lbs) and the Sony A7 IV has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") with a weight of 699 grams (1.54 lbs).
Take a look at the Olympus E-M5 II vs Sony A7 IV in our brand new Camera & Lens Size Comparison Tool.
Take into account, the weight of an ILC will vary based on the lens you have at that time. Underneath is a front view sizing comparison of the E-M5 II vs the A7 IV.

Using size and weight, the portability grade of the E-M5 II and A7 IV is 80 and 61 respectively.

Olympus E-M5 II vs Sony A7 IV Sensor Comparison
In many cases, it's difficult to visualise the contrast in sensor dimensions merely by going through specs. The pic underneath should give you a much better sense of the sensor sizing in the E-M5 II and A7 IV.
All in all, each of the cameras provide different megapixel count and different sensor dimensions. The E-M5 II featuring a smaller sensor will make shooting shallower depth of field more difficult and the Sony A7 IV will show more detail having its extra 17 Megapixels. Higher resolution can also enable you to crop pictures more aggressively. The more aged E-M5 II will be behind in sensor innovation.

Olympus E-M5 II vs Sony A7 IV Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Olympus E-M5 II vs Sony A7 IV Specifications
Olympus OM-D E-M5 II | Sony Alpha A7 IV | |
---|---|---|
General Information | ||
Make | Olympus | Sony |
Model type | Olympus OM-D E-M5 II | Sony Alpha A7 IV |
Class | Advanced Mirrorless | Pro Mirrorless |
Introduced | 2015-02-06 | 2021-10-21 |
Physical type | SLR-style mirrorless | SLR-style mirrorless |
Sensor Information | ||
Processor | TruePic VII | - |
Sensor type | MOS | BSI-CMOS |
Sensor size | Four Thirds | Full frame |
Sensor measurements | 17.3 x 13mm | 35.8 x 23.8mm |
Sensor surface area | 224.9mm² | 852.0mm² |
Sensor resolution | 16 megapixels | 33 megapixels |
Anti alias filter | ||
Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 1:1, 4:3, 3:2 and 16:9 |
Highest Possible resolution | 4608 x 3456 | 7008 x 4672 |
Maximum native ISO | 25600 | 51200 |
Maximum enhanced ISO | - | 204800 |
Min native ISO | 200 | 100 |
RAW photos | ||
Min enhanced ISO | 100 | 50 |
Autofocusing | ||
Manual focusing | ||
Autofocus touch | ||
Continuous autofocus | ||
Autofocus single | ||
Autofocus tracking | ||
Autofocus selectice | ||
Autofocus center weighted | ||
Autofocus multi area | ||
Live view autofocus | ||
Face detection autofocus | ||
Contract detection autofocus | ||
Phase detection autofocus | ||
Total focus points | 81 | 759 |
Lens | ||
Lens mount type | Micro Four Thirds | Sony E |
Available lenses | 107 | 172 |
Crop factor | 2.1 | 1 |
Screen | ||
Type of screen | Fully Articulated | Fully articulated |
Screen sizing | 3 inches | 3 inches |
Resolution of screen | 1,037k dots | 1,440k dots |
Selfie friendly | ||
Liveview | ||
Touch function | ||
Viewfinder Information | ||
Viewfinder type | Electronic | Electronic |
Viewfinder resolution | 2,360k dots | 3,690k dots |
Viewfinder coverage | 100 percent | 100 percent |
Viewfinder magnification | 0.74x | 0.78x |
Features | ||
Min shutter speed | 60 seconds | 30 seconds |
Max shutter speed | 1/8000 seconds | 1/8000 seconds |
Max silent shutter speed | 1/16000 seconds | - |
Continuous shutter rate | 10.0 frames/s | 10.0 frames/s |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | Yes | Yes |
Set white balance | ||
Image stabilization | ||
Integrated flash | ||
Flash distance | no built-in flash | no built-in flash |
Flash options | Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual | no built-in flash |
Hot shoe | ||
AE bracketing | ||
White balance bracketing | ||
Max flash synchronize | 1/250 seconds | 1/200 seconds |
Exposure | ||
Multisegment exposure | ||
Average exposure | ||
Spot exposure | ||
Partial exposure | ||
AF area exposure | ||
Center weighted exposure | ||
Video features | ||
Supported video resolutions | 1920 x 1080 (60p, 50p, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p), 640 x 480 (30p) | 3843840 x 2160 @ 60p / 200 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 50p / 200 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 30p / 140 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 25p / 140 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 24p / 100 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 60p / 600 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 50p / 500 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 30p / 300 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 25p / 250 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 24p / 240 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 120p / 280 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 100p / 280 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 30p / |
Maximum video resolution | 1920x1080 | 3840x2160 |
Video file format | MPEG-4, H.264, Motion JPEG | MPEG-4, XAVC S, XAVC HS, XAVC S-I, H.264, H.265 |
Microphone port | ||
Headphone port | ||
Connectivity | ||
Wireless | Built-In | Built-In |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | Yes (USB PD supported) |
GPS | None | None |
Physical | ||
Environment sealing | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 469 grams (1.03 lb) | 699 grams (1.54 lb) |
Physical dimensions | 124 x 85 x 45mm (4.9" x 3.3" x 1.8") | 129 x 97 x 81mm (5.1" x 3.8" x 3.2") |
DXO scores | ||
DXO Overall rating | 73 | not tested |
DXO Color Depth rating | 23.0 | not tested |
DXO Dynamic range rating | 12.4 | not tested |
DXO Low light rating | 896 | not tested |
Other | ||
Battery life | 310 shots | 600 shots |
Form of battery | Battery Pack | Battery Pack |
Battery ID | BLN-1 | NP-FZ100 |
Self timer | Yes (2 or 10 secs, custom) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
Time lapse feature | ||
Storage type | SD/SDHC/SDXC | Dual SD/CFexpress Type A slots |
Card slots | Single | 2 |
Cost at release | $699 | $2,500 |