iOS 8 on the iPhone 4S: Performance isn't the (only) problem

New OS wants screen space and processing power that the old phone doesn't have.

AT&T iPhone 4S review: AT&T iPhone 4S - CNET

Question] Got a sealed iPhone 4s 32GB. Came on iOS 6.1.2, I was hoping for 6.0 or something, but at least it isn't iOS 6.1.3. Is this thing rare? : r/LegacyJailbreak

question] Can someone identify what iOS this iPhone 4s is on? : r/LegacyJailbreak

iOS 8 features and updates

iPhone 4S Review

Will iOS 9 slow down my iPhone 4s or iPhone 5/5s? Perhaps a little (Video) - 9to5Mac

iOS 8.0.2 review on iPhone 5 and 4S PhonesReviews UK- Mobiles, Apps, Networks, Software, Tablet etc

If you have an iPhone 4s, you might want to hold back on iOS 8 - 9to5Mac

iOS 8 on the iPhone 4S: Performance isn't the (only) problem

Vodafone UK warns iPhone 4S owners not to upgrade to iOS 6.1 due to 3G bug

Read this before upgrading your iPhone 4s to iOS 8

iOS 8 on the iPhone 4S: Performance isn't the (only) problem

Apple iOS 7 on iPhone 4S - First Looks and Impressions Review - Performance Loss or Gain ?