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 ZS1 and Panasonic FZ150 side-by-side from the front, back and top in their relative dimensions. Panasonic ZS1 has external dimensions of 103 x 60 x 33 mm (4.06 x 2.36 x 1.3″) and weighs 229 g (0.50 lb / 8.08 oz) (including batteries). Panasonic FZ150 has external dimensions of 124 x 82 x 92 mm (4.88 x 3.23 x 3.62″) and weighs 528 g (1.16 lb / 18.62 oz) (including batteries).
Below you can see the front view size comparison of Panasonic ZS1 and Panasonic FZ150. Panasonic ZS1 is clearly the smaller of the two cameras. Its body is 21mm narrower, 22mm shorter and 59mm thinner than Panasonic FZ150.
Here is the back view size comparison of Panasonic ZS1 and Panasonic FZ150.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic ZS1 is significantly lighter (299g ) than the Panasonic FZ150 which may become a big advantage especially on long walking trips.
Unfortunately neither Panasonic Lumix DMC-ZS1 (Lumix DMC-TZ6) nor Panasonic Lumix DMC-FZ150 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 Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Panasonic FZ150's 3" LCD screen is slightly larger than Panasonic ZS1's 2.7" screen.
Moreover, Panasonic FZ150 sports a Fully Articulated screen
which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over the head levels, and especially very useful for shooting selfies and video. On the other hand, Panasonic ZS1 has a fixed type screen which provides almost no flexibility in shooting positions compared to FZ150.