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PHOTOGRAPHY FEATURES Built-in flash: Yes
PHYSICAL Weight (inc. batteries): 383 g (0.84 lb / 13.51 oz)
OTHER FEATURES GPS: Optional
Main
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Price
Advantages
SENSOR Effective pixels: 42 megapixels
SENSOR Max resolution: 7952 x 5304
SENSOR Sensor size: Full frame (35.9 x 24 mm)
IMAGE ISO: Auto, 100-32000 (expands to 50-102400)
IMAGE Boosted ISO (minimum): 50
IMAGE Boosted ISO (maximum): 102400
IMAGE White balance presets: 10
IMAGE Image stabilization: Sensor-shift
PHOTOGRAPHY FEATURES Maximum shutter speed: 1/8000 sec
PHOTOGRAPHY FEATURES Continuous drive: 10.0 fps
SCREEN / VIEWFINDER Screen dots: 1,440,000
OPTICS & FOCUS Number of focus points: 425
PHYSICAL Battery Life (CIPA): 650
Summary
The Sony Alpha a7R III maximum resolution of 7952 x 5304 pixels (42 megapixels) is better than the Fujifilm X-T20 highest resolution of 6000 x 4000 pixels (24 megapixels). The Sony Alpha a7R III has bigger sensor compared to the Fujifilm X-T20: Full frame (35.9 x 24 mm) versus APS-C (23.6 x 15.6 mm). It is the most important specification of this model because large sensor allows the photographer to shoot pictures of the higher quality. The Sony Alpha a7R III offers a wider ISO range of 100-32000 than 200-12800 ISO range of the Fujifilm X-T20. Such ISO numbers allow you to shoot better pictures in more difficult situations. The Sony Alpha a7R III provides more presets of white balance - 10. This option gives the photographer more control over colour. The Sony Alpha a7R III has image stabilization which will allow the camera owner to shoot blur-free photos indoors without using a tripod. The Sony Alpha a7R III offers more focus points than the Fujifilm X-T20: 425 vs 325. More number of focus points means less risk of losing focus lock during tracking a moving object.
The Sony Alpha a7R III display is better as it has more screen dots 1,440,000 in compare to 920,000 dots of the Fujifilm X-T20 screen. The higher dot count display is better for reviewing images on your camera.
The Fujifilm X-T20 has built-in flash. The Sony Alpha a7R III battery life is better in compare to the Fujifilm X-T20 battery life. According to CIPA standards the camera owner will be able to take 650 photos with the Alpha a7R III and only 350 with the X-T20. The Fujifilm X-T20 weighs 383g which is 274g lighter than the weight of the Sony Alpha a7R III. The Fujifilm X-T20 can utilize optional accessory GPS devices. Recording GPS data can be convenient if the camera owner is a traveller, to be able to check the photo metadata and find out exactly where a picture was taken.
Taking into account the above differences the Sony Alpha a7R III will become the best choice. Check the lowest price on Amazon