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 LZ20 and Olympus 1 side-by-side from the front, back and top in their relative dimensions. Panasonic LZ20 has external dimensions of 120 x 76 x 80 mm (4.72 x 2.99 x 3.15″) and weighs 499 g (1.10 lb / 17.60 oz) (including batteries). Olympus 1 has external dimensions of 116 x 87 x 57 mm (4.57 x 3.43 x 2.24″) and weighs 402 g (0.89 lb / 14.18 oz) (including batteries).
Below you can see the front view size comparison of Panasonic LZ20 and Olympus 1. Olympus 1 is 4mm narrower and 23mm thinner than Panasonic LZ20 but it is also 11mm taller.
Here is the back view size comparison of Panasonic LZ20 and Olympus 1.
Now lets look at the top view comparison of Panasonic LZ20 and Olympus 1.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Olympus 1 is significantly lighter (97g ) than the Panasonic LZ20 which may become a big advantage especially on long walking trips.
Unfortunately neither Panasonic Lumix DMC-LZ20 nor Olympus Stylus 1 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 Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Panasonic LZ20 and Olympus 1's LCD screens has the same diagonal size of 3".
On the other hand, Olympus 1 features a Tilting screen
where you can change the angle of the screen to make it easier to shoot from waist or over the head levels whereas the Panasonic LZ20 has a fixed type screen which provides less flexibility in shooting positions compared to 1.