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Main
Model
Price
Advantages
SENSOR Sensor size: Four Thirds (17.3 x 13 mm)
PHOTOGRAPHY FEATURES Minimum shutter speed: 60 sec
PHOTOGRAPHY FEATURES Maximum shutter speed: 1/4000 sec
PHOTOGRAPHY FEATURES External flash: Yes (via hot shoe)
PHOTOGRAPHY FEATURES Continuous drive: 11.0 fps
SCREEN / VIEWFINDER Viewfinder type: Electronic
VIDEOGRAPHY FEATURES Resolutions: 3840 x 2160 (30p, 24p), 1920 x 1080 (60p, 60i, 30p, 24p), 1280 x 720 (30p), 640 x 480
OPTICS & FOCUS Number of focus points: 49
CONNECTIVITY Wireless: Built-In
OTHER FEATURES Timelapse recording: Yes
Main
Model
Price
Advantages
SENSOR Effective pixels: 20 megapixels
SENSOR Max resolution: 5472 x 3648
SENSOR Sensor photo detectors: 21 megapixels
IMAGE White balance presets: 9
PHOTOGRAPHY FEATURES Built-in flash: Yes (Pop-up)
SCREEN / VIEWFINDER Screen dots: 1,228,800
OPTICS & FOCUS Optical zoom: 3.6×
OPTICS & FOCUS Digital zoom: Yes (14x)
PHYSICAL Weight (inc. batteries): 240 g (0.53 lb / 8.47 oz)
PHYSICAL Battery Life (CIPA): 330
Summary
The Cyber-shot DSC-RX100 highest resolution of 5472 x 3648 pixels (20 megapixels) is better than the Panasonic Lumix DMC-LX100 maximum resolution of 4112 x 3088 pixels (13 megapixels). The Panasonic Lumix DMC-LX100 has bigger sensor than the Cyber-shot DSC-RX100: Four Thirds (17.3 x 13 mm) versus 1″ (13.2 x 8.8 mm). It is the most significant difference between these models because big sensor lets the photographer to make photos of the better quality. The Cyber-shot DSC-RX100 provides more presets of white balance - 9. It gives the photographer more control over colour. The Cyber-shot DSC-RX100 provides better 14x digital and 3x optical zooms. The Panasonic Lumix DMC-LX100 offers more focus points in compare with the Cyber-shot DSC-RX100: 49 vs 25. More number of focus points means less risk of losing focus lock while tracking a moving object.
The Cyber-shot DSC-RX100 display is better as it has more screen dots 1,228,800 in compare to 921,000 dots of the Panasonic Lumix DMC-LX100 display. The higher dot count display is better for reviewing images on your camera. The Panasonic Lumix DMC-LX100 provides better lowest (60 seconds) and highest (1/4000 second) shutter speeds.
The Cyber-shot DSC-RX100 is equipped with built-in flash. The Panasonic Lumix DMC-LX100 supports external flash. An external flash provides great control over the exposure and lighting of the subject in low light and in bright light situations where the photographer needs to fill-flash. The Panasonic Lumix DMC-LX100 has built-in Wi-Fi which will help the camera owner to transfer photos quick and easy. The Cyber-shot DSC-RX100 battery life is better in compare to the Panasonic Lumix DMC-LX100 battery life. According to CIPA standards you will be able to take 330 shots with the Cyber-shot DSC-RX100 and only 300 with the Lumix DMC-LX100. The Sony Cyber-shot DSC-RX100 weighs 240g that is 153g less than the weight of the Panasonic Lumix DMC-LX100.
The Panasonic Lumix DMC-LX100 and the Cyber-shot DSC-RX100 have an equal number of advantages but as the Panasonic Lumix DMC-LX100 has bigger sensor which is a very significant specification then this model will be the best buy.