Sony RX100 IV vs Sigma fp

Cameras
Compare Cameras
Sony RX100 IV vs Sigma fp

Leave Feedback

1 inch 116.2mm²
20.1 megapixels
24.00mm - 70.00mm (35mm eq.)

Go in depth with our full Sony RX100 IV Review.
How does it shoot? Sony RX100 IV in the real world.
See real-world photos taken with the RX100 IV.
Compare Sony RX100 IV image quality against competitors.
What’s the bottom line? Read our Sony RX100 IV conclusion.

35mm 858.0mm²
24.6 megapixels
ISO 100 - 25,600

Go in depth with our full Sigma fp Review.
See real-world photos taken with the fp.

Succeeded by the Sony RX100 V
Compare RX100 IV vs RX100 V
Compare Sony RX100 V vs Sigma fp

Buy From

Differences

Sony RX100 IV advantages over Sigma fp

Slower slow-motion
1000 fps vs 120 fps
Supports slower slow-mo
Eye-level viewfinder
Eye-level vs Rear display only
You'll be able to frame photos even when the sun is out
In-camera panoramas
Yes vs No
Stitches multiple shots into a panoramic photo
Tiltable Screen
Tiltable vs Fixed
Tilt the screen for shooting flexbility
Built-in Wi-Fi
Wi-Fi vs None
Share your photos wirelessly
NFC
Yes vs No
Simplifies pairing your camera with supported phones
Internal flash
Internal flash vs None
Useful in a pinch for fill flash
Integrated ND filter
Yes vs No
Shoot in daylight with a large aperture or slow shutter
Higher max flash sync
1/2000 vs 1/30 sec
Reduce the effect of ambient light in flash shots
Lighter weight
295g vs 422g
Lighter weight
Has anti-aliasing filter
Filter vs No Filter
Reduces unsightly moiré in photos
Bigger JPEG buffer
40 vs 12 shots
Take more JPEG shots before waiting (burst mode)
Bigger RAW buffer
28 vs 12 shots
Larger buffer for RAW shots (burst mode)
Faster shutter
1/32000 vs 1/8000 sec
Shoot wide open in bright light

Sigma fp advantages over Sony RX100 IV

Larger sensor
35mm vs 1 inch
More sensor area. Bigger is (generally) better.
Bigger pixels
~ 5.98 vs 2.41 microns
Better low-light and dynamic range (all else equal)
Touchscreen
Touch vs No touch
Interact with your camera just like your smartphone
External Mic Jack
Jack vs No jack
Improved sound fidelity when shooting video
Newer
5 years vs 9 years old
Newer cameras often support more advanced features
More dots on screen
2100k vs 1229k dots
Can mean greater resolution or a brighter screen
Hot shoe
Hot shoe vs None
Off-camera flashes open new possibilities
More pixels
24.6 vs 20.1 megapixels
Higher resolution photos
Lacks anti-aliasing filter
No Filter vs Filter
Enjoy sharper photos
Faster JPEG shooting
18.0 fps vs 16.0 fps
Faster JPEG shooting (burst mode)
Faster RAW shooting
18.0 fps vs 8.6 fps
Faster RAW shooting in burst mode
Higher extended ISO
102400 vs 25600 ISO
Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

Rear display
Both provide
Review photos on the back of the camera
Focus peaking
Both provide
Your camera will highlight what's in focus
In-Camera Image Stabilization
Both provide
Reduces the effects of camera shake at slower shutter speeds
Shoot 4K video
Both provide
Make sure you have a fast computer
RAW file ability
Both provide
Gives you more flexibility to develop your photos later
Manual focus
Both provide
AF is for the weak. Real photographers focus manually.
HDMI out
Both provide
Use HDMI output to monitor or review video
Bulb shutter
Both provide
Hold the shutter open manually for long exposures
Slow-motion videos
Both provide
Shoot slow-motion videos

Common Weaknesses

Tilt-swivel screen
Neither provide
Tilt and swivel the screen for maximum shooting flexibility
Built-in Bluetooth
Neither provide
Always-on wireless connectivity
Built-in GPS
Neither provide
Geotag your photos
On-sensor phase detect
Neither provide
Usually improves live view and video AF performance
Top deck display
Neither provide
Check settings with a screen on top of the camera
Dual card slots
Neither provide
Gives you more storage flexibility
Headphone jack
Neither provide
Monitor audio recording while you shoot video

User reviews

Amazon
Adorama
Read fp User Reviews

Buy From

Your purchases support this site

Buy the Sony RX100 IV

Sony RX100 IV

All RX100 IV Deals

Your purchases support this site

Buy the Sigma fp

Body Only

Body Only
Kit with 45mm f/2.8 lens

All fp Deals

Review Excerpt

Vastly improved burst speeds with deep buffer; Great performance with very fast autofocus; Very high resolution gives lots of detail in good light; High ISO noise levels much better than most pocket camera rivals; High-quality 4K video with uncompressed HDMI out; Super-fast High Frame Rate video; Same great pocket-friendly design.
Pricey for a compact camera; JPEGs can look over-processed at higher ISOs; Lens doesn't offer as much telephoto reach; Battery life not as good as predecessor; 24-70mm-equivalent lens can feel limiting.
Read our Sony RX100 IV Review

We haven’t finished our review of the Sigma fp, but we have extensive sample photos and a hands-on report.
Read our Sigma fp Shooter's Report

The Competition

Compared to Sony RX100 III

Sony RX100 IV

Sony RX100 III

$898
1 inch

Slower slow-motion
Shoot 4K video

$748
1 inch

Compare Sony RX100 IV vs Sony RX100 III

Sigma fp

Sony RX100 III

$1623
35mm

Larger sensor
Bigger pixels

$748
1 inch

Less expensive
Eye-level viewfinder

Compare Sigma fp vs Sony RX100 III

Compared to Sony RX100 V

Sony RX100 IV

Sony RX100 V

$898
1 inch

Longer stills battery life

$998
1 inch

On-sensor phase detect
Faster JPEG shooting

Compare Sony RX100 IV vs Sony RX100 V

Sigma fp

Sony RX100 V

$1623
35mm

Larger sensor
Bigger pixels

$998
1 inch

Less expensive
Slower slow-motion

Compare Sigma fp vs Sony RX100 V

Compared to Sony RX100 VA

Sony RX100 IV

Sony RX100 VA

$898
1 inch

Longer stills battery life

$998
1 inch

On-sensor phase detect
Newer

Compare Sony RX100 IV vs Sony RX100 VA

Sigma fp

Sony RX100 VA

$1623
35mm

Larger sensor
Bigger pixels

$998
1 inch

Less expensive
Slower slow-motion

Compare Sigma fp vs Sony RX100 VA

Compared to Sony A7C

Sony RX100 IV

Sony A7C

$898
1 inch

Slower slow-motion
In-camera panoramas

$1598
35mm

Tilt-swivel screen
Larger sensor

Compare Sony RX100 IV vs Sony A7C

Sigma fp

Sony A7C

$1623
35mm

Thinner
More dots on screen

$1598
35mm

Tilt-swivel screen
Eye-level viewfinder

Compare Sigma fp vs Sony A7C

Compared to Sigma fp L

Sony RX100 IV

Sigma fp L

$898
1 inch

Less expensive
Slower slow-motion

$2499
35mm

Larger sensor
Bigger pixels

Compare Sony RX100 IV vs Sigma fp L

Sigma fp

Sigma fp L

$1623
35mm

Bigger pixels
Higher max flash sync

$2499
35mm

More pixels
Has anti-aliasing filter

Compare Sigma fp vs Sigma fp L

Compare Other Cameras?