![Apple Watch Series 4 Models Have Nearly 20% Less Battery Capacity Despite Same 'Up to 18 Hours' Battery Life - MacRumors Apple Watch Series 4 Models Have Nearly 20% Less Battery Capacity Despite Same 'Up to 18 Hours' Battery Life - MacRumors](https://images.macrumors.com/t/_voEIyzRpBGLBoGoRm1X3N1ogQM=/1600x1200/smart/article-new/2018/09/apple-s4.jpg)
Apple Watch Series 4 Models Have Nearly 20% Less Battery Capacity Despite Same 'Up to 18 Hours' Battery Life - MacRumors
![Amazon.com: LVFAN Portable Charger for Apple Watch, 4000mAh iWatch Charger Power Bank Wireless Battery Pack Magnetic Travel Smart Watch Charger for Apple Watch Series 8 7 6 5 4 3 2 1 Amazon.com: LVFAN Portable Charger for Apple Watch, 4000mAh iWatch Charger Power Bank Wireless Battery Pack Magnetic Travel Smart Watch Charger for Apple Watch Series 8 7 6 5 4 3 2 1](https://m.media-amazon.com/images/I/61lZQfhQRAL.jpg)
Amazon.com: LVFAN Portable Charger for Apple Watch, 4000mAh iWatch Charger Power Bank Wireless Battery Pack Magnetic Travel Smart Watch Charger for Apple Watch Series 8 7 6 5 4 3 2 1
![Testing Apple Watch Series 4 half marathon battery life with cellular off: over 50% after 2 hours - 9to5Mac Testing Apple Watch Series 4 half marathon battery life with cellular off: over 50% after 2 hours - 9to5Mac](https://9to5mac.com/wp-content/uploads/sites/6/2018/12/watch-recap1.jpg?quality=82&strip=all&w=1000)
Testing Apple Watch Series 4 half marathon battery life with cellular off: over 50% after 2 hours - 9to5Mac
![Apple Watch Series 4 Models Have Nearly 20% Less Battery Capacity Despite Same 'Up to 18 Hours' Battery Life - MacRumors Apple Watch Series 4 Models Have Nearly 20% Less Battery Capacity Despite Same 'Up to 18 Hours' Battery Life - MacRumors](https://images.macrumors.com/t/6a2VXT7QGqHgalXHHtM_gwSWyXg=/1200x1200/smart/article-new/2018/09/apple-s4.jpg)
Apple Watch Series 4 Models Have Nearly 20% Less Battery Capacity Despite Same 'Up to 18 Hours' Battery Life - MacRumors
![Upgraded from series 4 to the 7. It just seems the battery dies quicker. I could wear my series 4 for 2 days before it need a charge. : r/AppleWatch Upgraded from series 4 to the 7. It just seems the battery dies quicker. I could wear my series 4 for 2 days before it need a charge. : r/AppleWatch](https://i.redd.it/wh9r9318k2u71.jpg)
Upgraded from series 4 to the 7. It just seems the battery dies quicker. I could wear my series 4 for 2 days before it need a charge. : r/AppleWatch
![Testing Apple Watch Series 4 half marathon battery life with cellular off: over 50% after 2 hours - 9to5Mac Testing Apple Watch Series 4 half marathon battery life with cellular off: over 50% after 2 hours - 9to5Mac](https://9to5mac.com/wp-content/uploads/sites/6/2018/12/watch-battery-half-marathon.jpg?quality=82&strip=all)
Testing Apple Watch Series 4 half marathon battery life with cellular off: over 50% after 2 hours - 9to5Mac
![Apple Watch Series 4 - watchOS 7.4 DP2 - Huge battery drain when sleeping with Apple Watch, I know it's normal that you get battery drain right after a software update but Apple Watch Series 4 - watchOS 7.4 DP2 - Huge battery drain when sleeping with Apple Watch, I know it's normal that you get battery drain right after a software update but](https://i.redd.it/2rpxnxcqrzh61.jpg)