Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Panasonic FX48 and Canon ELPH 300 HS side-by-side from the front, back and top in their relative dimensions. Panasonic FX48 has external dimensions of 95 x 53 x 22 mm (3.74 x 2.09 x 0.87″) and weighs 150 g (0.33 lb / 5.29 oz) (including batteries). Canon ELPH 300 HS has external dimensions of 92 x 56 x 20 mm (3.62 x 2.2 x 0.79″) and weighs 141 g (0.31 lb / 4.97 oz) (including batteries).
Below you can see the front view size comparison of Panasonic FX48 and Canon ELPH 300 HS. Canon ELPH 300 HS is 3mm narrower and 2mm thinner than Panasonic FX48 but it is also 3mm taller.
Here is the back view size comparison of Panasonic FX48 and Canon ELPH 300 HS.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon ELPH 300 HS is 9g lighter than the Panasonic FX48 but we don't think this will make a significant difference.
Unfortunately neither Panasonic Lumix DMC-FX48 (Lumix DMC-FX40) nor Canon ELPH 300 HS (IXUS 220 HS) provides any type of weather sealing in their body, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Compact Cameras with Weather Sealing
LCD Screen Size and Features
Canon ELPH 300 HS's 2.7" LCD screen is slightly larger than Panasonic FX48's 2.5" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.