Product analysis involves examining product features, costs, availability, quality, appearance and other aspects. Product analysis is conducted by potential buyers, by product managers attempting to understand competitors and by third party reviewers.

read about APPLE product and answer the following question

Question 1: What is the difference between points and pixels on an iPhone?

Question 2: What is a Density-independent pixel (dp)?

Question 3: High-density screens have more pixels per inch than low-density ones. Which screens have better graphics?

Question 4: What is the 1x, 1.5x, 2x, 3x, 4x size of a 100px x 100px logo image?

Question 5: What are the sizes you are required to create as a designer for your app icon for iPhone apps?

Question 6: What is the density of the target device you are designing for?

Question 7: Export this graphic in all required sizes for the iPhone

Question 8: What is the meaning of mdpi, hdpi, xhdpi, xxhdpi, and xxxhdpi for Android, and how does it relate to Apple?

Question 9: Which phones are xxxhdpi?

Questions 10: Since designing for retina is an issue, can you just use SVGs for all graphics? Answer in detail for each platform (Apple, Android) considering all types of graphics: logos, illustrations, backgrounds, photos

 

Business IPhone Analysis

Question 1: What is the difference between points and pixels on an iPhone?

In iPhone, points are different from pixels since they change size depending on the DPI.  In iPhone 1 pixel is the same as 1 point when the DPI resolution is 163. All iPhones were designed in such manner before the onset of the Retina Period. In iPhones with 326 DPI such as iPhone 4, 5, and 6, 1 point is equivalent to 2 pixels down and 2 pixels across or a combined 4 pixels.

Question 2: What is a Density-independent pixel (dp)?

Device density-independent pixel, also known as dp refers to a length unit.  The dp is typically utilized to enable the software to scale information display and enhance user interaction of various screen sizes.
 

Question 3: What is the 1x, 1.5x, 2x, 3x, 4x size of a 100px x 100px logo image?

In a 100 pixel image, 1x in the logo image are typical baseline image size, with 1.5x, 2x, 3x, and 4x being 1.5 times, two times, three times, and four times, respectively.

Question 4: What are the sizes you are required to create as a designer for your app icon for iPhone apps?

The required sizes to create a designer for iPhone app icon are of two types. The first size can be 60 by 60 at 3x or (180px X 180px).  The other size is 60pt by 60pt at 2x or (120px X 120px).

Question 5: What is the meaning of mdpi, hdpi, xhdpi, xxhdpi, and xxxhdpi for Android, and how does it relate to Apple?

mdpi refers to the resources of medium density screens of about 160 dpi. The mdpi is the baseline density and is utilized to support medium density images.  hdpi for Android refers to the resources for high-density screens with 240 dpi. The Android phones hdpi are images with higher resolution. xhdpi for Android refers to resources for extra high-density screens with a density of 320 dpi.  xxhdpi for Android refers to the resources for extra-extra high-density screens with 480 dpi. Apple images or apps require one to provide three image sizes, 3x, 2x, and 1x. 1x is the mdpi and is regarded as baseline density.

Question 6: Which phones are xxxhdpi?

xxxhdpi are the resources for extra-extra high-density screens. The phones under xxxhdpi category must have a density of at least 480 dpi or 400% or 4x. Examples include Samsung Galaxy S6 577 2560 1440, and Samsung 6 Edge.