I am posting two screen shots of my Google Analytics in which Avg. Session Duration is different. Why is that ??
One screenshot is from Landing Page and other is from All Pages tab. I am using a WordPress plugin which shows page by page stats https://wordpress.org/plugins/wp-analytify/ and It is showing that page stats from Landing page.
You’re comparing two ways of looking at pages:
Try applying a segment to exclude bounce sessions and you should see your average session time get much closer to the 2 minutes listed in the pages report
Landing pages will show you how people entered your web site and it is good for acquisition analysis.
All pages report will show you how your pages perform regardless if they entered the site through that page or not. This is why you see additional metrics such as %Exit rate (since bounce rate applies ONLY to landing page) and page value (since you can not run a conversion rate report on all pages).
You can use your ALL pages report in order to see how people navitgate to your site, which pages are important as “secondary level” pages and how they contribute to your conversion path.
You can read more in how to do that here: http://digitalinsightsworld.com/digital-insights/path-analysis-google-analytics-excel/
Most of the Site admin misunderstood between these two metrics.
Landing Page – Avg Session Duration – Continuous Page duration Avg Time
All Page (From Behaviour) – Avg Time on Page – Amount of time spend on single page.
Refer this information, it is clearly explain this link https://www.studentcpu.com/2020/03/google-analytics-important-kpi-monitor.html Please refer it. you will get clear insight.