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 ZS7 and Canon SX150 IS side-by-side from the front, back and top in their relative dimensions. Panasonic ZS7 has external dimensions of 103 x 60 x 33 mm (4.06 x 2.36 x 1.3″) and weighs 218 g (0.48 lb / 7.69 oz) (including batteries). Canon SX150 IS has external dimensions of 113 x 73 x 46 mm (4.45 x 2.87 x 1.81″) and weighs 306 g (0.67 lb / 10.79 oz) (including batteries).
Below you can see the front view size comparison of Panasonic ZS7 and Canon SX150 IS. Panasonic ZS7 is clearly the smaller of the two cameras. Its body is 10mm narrower, 13mm shorter and 13mm thinner than Canon SX150 IS.
Comparison image of Panasonic ZS7 and Canon SX150 IS Size, Weight and External Dimensions - Front View
Now lets look at the top view comparison of Panasonic ZS7 and Canon SX150 IS.
Top View Comparison image of Panasonic ZS7 and Canon SX150 IS Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic ZS7 is significantly lighter (88g ) than the Canon SX150 IS which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither Panasonic Lumix DMC-ZS7 (Lumix DMC-TZ10) nor Canon PowerShot SX150 IS 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
Panasonic ZS7 and Canon SX150 IS's LCD screens has the same diagonal size of 3".
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.