Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Canon SX420 IS and Leica TL2 side-by-side from the front, back and top in their relative dimensions. Canon SX420 IS has external dimensions of 104 x 69 x 85 mm (4.09 x 2.72 x 3.35″) and weighs 325 g (0.72 lb / 11.46 oz) (including batteries). Leica TL2 has external dimensions of 134 x 69 x 33 mm (5.28 x 2.72 x 1.3″) and weighs 399 g (0.88 lb / 14.07 oz) (including batteries).
Below you can see the front-view size comparison of the Canon SX420 IS and the Leica TL2. As you can tell, actually this is not a fair size comparison since Canon SX420 IS has a built-in lens but Leica TL2 doesn't. Once you put a lens on , its thickness will increase significantly.
Here is the back view size comparison of the Canon SX420 IS and Leica TL2.
Now lets look at the top view comparison of Canon SX420 IS and Leica TL2.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Canon SX420 IS is significantly lighter (74g ) than the Leica TL2 which may become a big advantage especially on long walking trips.
Again, this comparison may not be very useful in real life as we are comparing the weight of a camera with a built-in lens to the body-only weight of an interchangeable lens camera. Once you put a lens on , the total kit will weigh much higher.
Weather Sealing
Unfortunately neither the Canon PowerShot SX420 IS nor Leica TL2 provides any type of weather sealing in their bodies, 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 Bridge Cameras with Weather Sealing Top Mirrorless Cameras with Weather Sealing
LCD Screen Size and Features
Leica TL2's 3.70" LCD screen is slightly larger than Canon SX420 IS's 3 screen.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.