The larger the sensor the more light the sensor captures yielding in better image quality.
6.08 x 4.56mm
Polaroid Snap: 81.2 x 25.4mm
3. focus points
The more focus points the more flexibility in picking which part of the scene to focus on. They also give the image sensor a better probability in identifying the right area of the scene to focus on in more automatic modes.
Sony Alpha a7 III: 693
4. continuous shooting at high resolution
Fast continuous shooting is useful for catching action shots.
Olympus OM-D E-M1 Mark II: 60fps
The maximum ISO at which the device still captures excellent quality images. Source: DxOMark.
Sony Alpha 7S: 3702ISO
6. maximum light sensitivity
With a higher light sensitivity (ISO level), the sensor absorbs more light. This can be used to capture moving objects using a fast shutter speed, or to take images in low light without using a flash.
Nikon D7500 + Nikon AF-S DX Nikkor 18-140mm f/3.5-5.6G ED VR: 1640000 ISO
7. longer battery life
CIPA is an independent, standard measurement that determines how many shots a camera can take before the battery dies.
Nikon D3x: 4400shots
8. video recording
720 x 30fps
Canon EOS 1D X Mark II: 2160 x 60fps
HTC Re: 65.5g
10. fastest shutter speed
A faster maximum shutter speed allows taking pictures of fast moving subjects without blur.
Sony Cyber-shot DSC-RX100 IV: 1/32000s
11. pixel density
Panasonic Lumix DC-GH5S: 1437.5ppi
553 x 415px
Panasonic Lumix DC-GH5S: 3680 x 2760px
13. has built-in optical image stabilization
Optical image stabilization uses gyroscopic sensors to detect the vibrations of the camera. The lens adjusts the optical path accordingly, ensuring that any type of motion blur is corrected before the sensor captures the image.
The bigger the screen size is, the better the user experience.
Samsung Galaxy Camera 2: 4.8"
20. shutter lag
The amount of time it takes the camera to take a photo, without having to focus.
Leica M Typ 240: 0s
21. has a serial shot mode
You can shoot multiple pictures in a row.
Panasonic Lumix DMC-FH3
88% have it
22. has a flash
A flash is good for low-light environments, and can sometimes be used as flashlight.
Panasonic Lumix DMC-FH3
86% have it
23. optical zoom
The zoom range is the ratio between the longest and shortest focal lengths. A higher zoom range means that the lens is more versatile.
Nikon Coolpix P900: 83.3x
24. widest aperture
With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.
Ricoh GR II: f/1
25. power up delay
It takes less time for the camera to turn on and take a first picture.