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Main
Model
Price
Advantages
SENSOR Effective pixels: 20 megapixels
SENSOR Max resolution: 5472 x 3648
SENSOR Sensor size: 1″ (13.2 x 8.8 mm)
SENSOR Sensor photo detectors: 21 megapixels
PHOTOGRAPHY FEATURES Minimum shutter speed: 40 sec
SCREEN / VIEWFINDER Articulated LCD: Tilting
SCREEN / VIEWFINDER Screen dots: 1,040,000
OPTICS & FOCUS Number of focus points: 31
CONNECTIVITY Remote control: Yes (via smartphone)
Main
Model
Price
Advantages
PHOTOGRAPHY FEATURES Continuous drive: 12.1 fps
PHYSICAL Weight (inc. batteries): 217 g (0.48 lb / 7.65 oz)
PHYSICAL Battery Life (CIPA): 230
OTHER FEATURES GPS: Optional
Summary
The Canon PowerShot G7 X maximum resolution of 5472 x 3648 pixels (20 megapixels) is better in comparison with the PowerShot S120 maximum resolution of 4000 x 3000 pixels (12 megapixels). The Canon PowerShot G7 X is produced with larger sensor than the PowerShot S120: 1 (13.2 x 8.8 mm) versus 1/1.7' (7.44 x 5.58 mm). It is very important specification of this camera because big sensor lets you to shoot photos of the more professional quality. The Canon PowerShot G7 X has more number of focus points in compare with the PowerShot S120: 31 vs 9. More focus points means less risk of losing focus lock when following a moving object.
The Canon PowerShot G7 X is produced with tilting LCD which will allow you to make high quality selfie photos. The Canon PowerShot G7 X screen is better as it offers more number of screen dots 1,040,000 in compare to 922,000 dots of the PowerShot S120 screen. The higher dot count screen is better for reviewing pictures on your camera. The Canon PowerShot G7 X provides better minimum shutter speed - 40 seconds.
The PowerShot S120 battery life is better in compare to the Canon PowerShot G7 X battery life. According to CIPA standards you will be able to take 230 shots with the PowerShot S120 and only 210 with the PowerShot G7 X. The Canon PowerShot S120 weighs 217g that is 87g lighter in comparison with the weight of the Canon PowerShot G7 X. The Canon PowerShot S120 can utilize optional accessory GPS devices. Recording GPS data can be convenient if you like to travel, to be able to check the photo metadata and see exactly where an image was produced.
Taking into account the above-mentioned differences the PowerShot G7 X will be the best buy. Check the lowest price on Amazon