Weight, size, and battery life: iPhone 7 vs iPhone 6s
iPhone 6S review: a very good phone ruined by rubbish battery life | Apple | The Guardian
Amazon.com: Battery for iPhone 6S, (2023 New Version) High Capacity Upgraded New 0 Cycle Battery Replacement for iPhone 6S with Repair Tools Kits : Cell Phones & Accessories
iPhone Battery and Performance - Apple Support
12 Tips to Save Battery Life on the iPhone 6s - YouTube
iPhone 6 vs iPhone 6s vs iPhone 7 vs iPhone 7 Plus Battery Life Drain Test in 2022 - NO PUBG - YouTube