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 ZS3 and Canon SX510 HS side-by-side from the front, back and top in their relative dimensions. Panasonic ZS3 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). Canon SX510 HS has external dimensions of 104 x 70 x 80 mm (4.09 x 2.76 x 3.15″) and weighs 349 g (0.77 lb / 12.31 oz) (including batteries).
Below you can see the front view size comparison of Panasonic ZS3 and Canon SX510 HS. Panasonic ZS3 is clearly the smaller of the two cameras. Its body is 1mm narrower, 10mm shorter and 47mm thinner than Canon SX510 HS.
![Panasonic ZS3 vs Canon SX510 HS Camera Size Comparison - Front View]()
Comparison image of Panasonic ZS3 and Canon SX510 HS Size, Weight and External Dimensions - Front View
Now lets look at the top view comparison of Panasonic ZS3 and Canon SX510 HS.
![Panasonic ZS3 vs Canon SX510 HS Camera Size Comparison - Top View]()
Top View Comparison image of Panasonic ZS3 and Canon SX510 HS Size
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic ZS3 is significantly lighter (120g ) than the Canon SX510 HS which may become a big advantage especially on long walking trips.
Weather Sealing
Unfortunately neither Panasonic Lumix DMC-ZS3 (Lumix DMC-TZ7) nor Canon PowerShot SX510 HS 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 ZS3 and Canon SX510 HS'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.