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 Canon A810 and Fujifilm F800EXR side-by-side from the front, back and top in their relative dimensions. Canon A810 has external dimensions of 95 x 62 x 30 mm (3.74 x 2.44 x 1.18″) and weighs 171 g (0.38 lb / 6.03 oz) (including batteries). Fujifilm F800EXR has external dimensions of 105 x 63 x 36 mm (4.13 x 2.48 x 1.42″) and weighs 232 g (0.51 lb / 8.18 oz) (including batteries).
Below you can see the front view size comparison of Canon A810 and Fujifilm F800EXR. Canon A810 is clearly the smaller of the two cameras. Its body is 10mm narrower, 1mm shorter and 6mm thinner than Fujifilm F800EXR.
Here is the back view size comparison of Canon A810 and Fujifilm F800EXR.
Now lets look at the top view comparison of Canon A810 and Fujifilm F800EXR.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Canon A810 is significantly lighter (61g ) than the Fujifilm F800EXR which may become a big advantage especially on long walking trips.
Unfortunately neither Canon PowerShot A810 nor Fujifilm FinePix F800EXR 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
Fujifilm F800EXR's 3" LCD screen is slightly larger than Canon A810's 2.7" screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.