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 Canon S70 and Canon S90 side-by-side from the front, back and top in their relative dimensions.
Here you can compare front view size of Canon S70 and Canon S90. Canon S90 is 14mm narrower and 8mm thinner than Canon S70 but it is also 1mm taller.
Here is the back view size comparison of Canon S70 and Canon S90.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day. Canon S90 is significantly lighter (105g ) than the Canon S70 which may become a big advantage especially on long walking trips.
Unfortunately neither Canon PowerShot S70 nor Canon PowerShot S90 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
Canon S90's 3" LCD screen is slightly larger than Canon S70's 1.8" screen.
Unfortunately, both cameras has fixed screens so they don\'t tilt or flip in directions.
Canon S70 features a 28-100 mm F2.8-5.3 3.6× zoom lens whereas Canon S90 features a 28-105 mm F2.0-4.9 3.8× zoom lens.
Both cameras have a wide angle coverage of 28mm. On the other hand, with a max aperture of f2.00, Canon S90 is faster than Canon S70 at this focal length. On the tele end, Canon S90 has 5mm longer reach than the Canon S70. At f4.90, it is also faster at tele end.
Max Aperture at Tele
Fastest - Ricoh GR Digital IV