Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Ricoh G900 and Sony a5100 side-by-side from the front, back and top in their relative dimensions. Ricoh G900 has external dimensions of 118 x 66 x 33 mm (4.65 x 2.6 x 1.3″) and weighs 247 g (0.54 lb / 8.71 oz) (including batteries). Sony a5100 has external dimensions of 110 x 63 x 36 mm (4.33 x 2.48 x 1.42″) and weighs 283 g (0.62 lb / 9.98 oz) (including batteries).
Below you can see the front view size comparison of Ricoh G900 and Sony a5100. Sony a5100 is 8mm narrower and 3mm shorter than Ricoh G900 but it is also 3mm thicker. As you can tell, actually this is not a fair size comparison since Ricoh G900 has a built-in lens but Sony a5100 doesn't. Once you put a lens on a5100, its thickness will increase significantly.
![Ricoh G900 vs Sony a5100 Camera Size Comparison - Front View]()
Comparison image of Ricoh G900 and Sony a5100 Size, Weight and External Dimensions - Front View
Here is the back view size comparison of Ricoh G900 and Sony a5100.
![Ricoh G900 vs Sony a5100 Camera Size Comparison - Back View]()
Comparison image of Ricoh G900 and Sony a5100 Size and Weight - Back View
Now lets look at the top view comparison of Ricoh G900 and Sony a5100.
![Ricoh G900 vs Sony a5100 Camera Size Comparison - Top View]()
Top View Comparison image of Ricoh G900 and Sony a5100 Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Ricoh G900 is 36g lighter than the Sony a5100 but we don't think this will make a significant difference.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on a5100, the total kit will weigh much higher.
Weather Sealing
LCD Screen Size and Features
Ricoh G900 and Sony a5100's LCD screens has the same diagonal size of 3".
On the other hand, Sony a5100 features a
Tilting screen where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Ricoh G900 has a fixed type screen which provides less flexibility in shooting positions compared to a5100.
Ricoh G900 has a 20.0MP 1/2.3" (6.17 x 4.55 mm ) sized BSI-CMOS sensor . On the other hand, Sony a5100 has a 24.0MP APS-C (23.5 x 15.6 mm ) sized CMOS sensor and features Bionz X processor.
Below you can see the G900 and a5100 sensor size comparison.
![Ricoh G900 vs Sony a5100 Sensor Size Comparison]()
Sensor Size and Resolution Comparison image of Ricoh G900 and Sony a5100 Cameras
As seen above, Sony a5100 has a 13.1x Larger sensor area than Ricoh G900. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.
In this section, we rank and compare Ricoh G900 and Sony a5100 for five different photography types in order to make your decision process easier in case you are specifically interested in one or more of these areas.
Ricoh G900 for Portrait Photography
Sony a5100 for Portrait Photography
Very High Resolution Sensor: 20.0MP
Image Stabilization
Small 1/2.3" (6.17 x 4.55 mm) sensor
No RAW shooting capability
No External Flash Shoe
No Built-in Viewfinder
No Manual Exposure Mode
Not so good Ergonomics&Handling
Read the details
Large APS-C (23.5 x 15.6 mm) sensor
Very High Resolution Sensor: 24.0MP
Average Ergonomics&Handling
No Image Stabilization
No Built-in Viewfinder
Read the details
Ricoh G900 for Street Photography
Sony a5100 for Street Photography
Image Stabilization
Small Body
Live-view
Face-Detection Focusing
28 mm - Good Wide Angle Coverage
Small 1/2.3" (6.17 x 4.55 mm) sensor
No RAW shooting capability
No Built-in Viewfinder
Read the details
Large APS-C (23.5 x 15.6 mm) sensor
Live-view
Face-Detection Focusing
Tilting LCD Screen
Medium sized Body
No Image Stabilization
No Built-in Viewfinder
Read the details
Ricoh G900 for Sports Photography
Sony a5100 for Sports Photography
Image Stabilization
Environmental Sealings
Fast Max shutter speed: 1/4000s
140 mm Tele Lens
No RAW shooting capability
No External Flash Shoe
No Built-in Viewfinder
No Manual Exposure Mode
Not so good Ergonomics&Handling
9 Focus Points
Read the details
Fast Max shutter speed: 1/4000s
179 Focus Points
Good Low Light ISO
Wireless Connection
Average Ergonomics&Handling
Average Continuous Shooting: 6.0fps
No Image Stabilization
No Built-in Viewfinder
Environmental Sealings
Read the details
Ricoh G900 for Daily Photography
Sony a5100 for Daily Photography
Compact Body
Environmental Sealings
247g
5.0X Optical Zoom
Small 1/2.3" (6.17 x 4.55 mm) sensor
No RAW shooting capability
Read the details
Ricoh G900 for Landscape Photography
Sony a5100 for Landscape Photography
Very High Resolution Sensor: 20.0MP
28 mm - Good Wide Angle Coverage
Environmental Sealings
Small 1/2.3" (6.17 x 4.55 mm) sensor
No RAW shooting capability
No Manual Exposure Mode
Read the details
Large APS-C (23.5 x 15.6 mm) sensor
Very High Resolution Sensor: 24.0MP
Live-view
No Environmental Sealings
Read the details
You may have already made your decision about which camera suits better for your needs and your budget so far but in case you wonder how we rated Ricoh G900 and Sony a5100, below you can find their scores in five different aspects.
Our Decision Algorithm dynamically scores cameras using 63 different specs, current price and DxO Mark scores (where possible) in order to make a more objective and consistent comparison.
Here is a summary of how Ricoh G900 and Sony a5100 scores compare:
Ricoh G900
Ranked
#71 out of 475 in Compact cameras
Ranked
#508 out of 1218 in all Cameras
Sony a5100
Ranked
#34 out of 126 in Rangefinder-style mirrorless cameras
Ranked
#201 out of 1218 in all Cameras
Sony a5100 is the overall winner of this comparison. It has a higher Overall Score and beats Ricoh G900 in all criteria except one: Portability.
If small size and light body is a big priority for you, choose Ricoh G900. Otherwise, Sony a5100 is the better camera overall.
| General |
Ricoh G900 |
Sony Alpha a5100 |
| Brand |
Ricoh |
Sony |
| Announced |
2018-02-21 |
2014-08-17 |
| Body Type |
Compact |
Rangefinder-style mirrorless |
Sensor |
|
|
| Type |
BSI-CMOS |
CMOS |
| Size |
1/2.3" |
APS-C |
| Dimensions |
6.17 x 4.55 mm |
23.5 x 15.6 mm |
| Area |
28.07mm2 |
366.60mm2 |
| Megapixels |
20 megapixels |
24 megapixels |
| Max Resolution |
5184 x 3888 |
6000 x 4000 |
| Max Native Light sensitivity |
6,400 ISO |
25,600 ISO |
| Min Native Light sensitivity |
125 ISO |
100 ISO |
| RAW Support |
|
|
Autofocus |
|
|
| AF Touch |
|
|
| AF Continuous |
|
|
| AF Single |
|
|
| AF Tracking |
|
|
| AF Selective |
|
|
| AF Center |
|
|
| AF Multi Area |
|
|
| AF Live View |
|
|
| AF Face Detection |
|
|
| AF Contrast Detection |
|
|
| AF Phase Detection |
|
|
| Number of Focus Points |
9 |
179 |
Lens |
|
|
| Manual Focus |
|
|
| Lens Mount |
fixed lens |
Sony E (NEX) |
| Lens Focal Range |
28-140 mm (5x) |
no lens |
| Max Aperture |
F3.5-5.5 |
no lens |
| Macro Focus Range |
1cm |
no lens |
Screen |
|
|
| Type |
Fixed type |
Tilting |
| Size |
3" |
3" |
| Resolution |
1,040k dots |
922k dots |
| Touch Screen |
|
|
Viewfinder |
|
|
| Viewfinder |
None |
None |
Photography Features |
|
|
| Max Mechanical Shutter |
1/4000s |
1/4000s |
| Shutter Priority |
|
|
| Aperture Priority |
|
|
| Manual Exposure Mode |
|
|
| Custom White Balance |
|
|
| Image Stabilization |
Digital only |
No |
| Built-in Flash |
|
|
| Flash Range |
5.50 m (with Auto ISO) |
4.00 m (at ISO 100) |
| External Flash |
|
|
| Continuous Shooting |
n/a |
6.0 fps |
| Multi-Segment |
|
|
| Average |
|
|
| Spot |
|
|
| Partial |
|
|
| AF-Area |
|
|
| Center Weighted |
|
|
| AE Bracketing |
|
|
| WB Bracketing |
|
|
Video Features |
|
|
| Max Video Resolution |
3840x2160 |
1920 x 1080 |
| Video Formats |
MPEG-4, H.264 |
MPEG-4, AVCHD, XAVC S |
| Microphone Port |
|
|
| Headphone Port |
|
|
Connectivity |
|
|
| Wireless Connectivity |
Supports FlashAir SD cards |
Built-In |
| HDMI |
|
|
Physical |
|
|
| Environmental Sealing |
|
|
| Weight |
247g |
283g |
| Dimensions |
118 x 66 x 33mm |
110 x 63 x 36mm |
| Battery Life |
340 shots |
400 shots |
Other Features |
|
|
| Timelapse Recording |
|
With Downloadable App |
| GPS |
Built-in |
None |
DxO Sensor Scores |
|
|
| DxO Overall Score |
not tested |
80 |
| DxO Color Depth |
not tested |
23.8 |
| DxO Dynamic Range |
not tested |
12.7 |
| DxO Low Light ISO |
not tested |
1347 |
|
Report a correction |
Report a correction |