![Apple Watch Series 4 Teardown Reveals Battery Capacity, Heart Sensor Placement, and More | Technology News Apple Watch Series 4 Teardown Reveals Battery Capacity, Heart Sensor Placement, and More | Technology News](https://i.gadgets360cdn.com/large/apple_watch_series_4_ifixit_1537944942947.jpg)
Apple Watch Series 4 Teardown Reveals Battery Capacity, Heart Sensor Placement, and More | Technology News
![Smartwatch Battery For Apple Watch Series 4 44mm A1976 A2059 Capacity 290mAh / 1.11Wh Color Black Type Li-Polymer Volts 3.82V - AliExpress Smartwatch Battery For Apple Watch Series 4 44mm A1976 A2059 Capacity 290mAh / 1.11Wh Color Black Type Li-Polymer Volts 3.82V - AliExpress](https://ae01.alicdn.com/kf/Se51b69d61df243e0afebcfeba46eeda3B/Smartwatch-Battery-For-Apple-Watch-Series-4-44mm-A1976-A2059-Capacity-290mAh-1-11Wh-Color-Black.jpg)
Smartwatch Battery For Apple Watch Series 4 44mm A1976 A2059 Capacity 290mAh / 1.11Wh Color Black Type Li-Polymer Volts 3.82V - AliExpress
![Amazon.com: Replacement Battery for Applee A1975 A1977 A2007 iWatch Series 4 40mm A2058 (220mAh) : Cell Phones & Accessories Amazon.com: Replacement Battery for Applee A1975 A1977 A2007 iWatch Series 4 40mm A2058 (220mAh) : Cell Phones & Accessories](https://m.media-amazon.com/images/I/41gBnbpXZ2L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Replacement Battery for Applee A1975 A1977 A2007 iWatch Series 4 40mm A2058 (220mAh) : Cell Phones & Accessories
![Series 4 approaching battery replacement threshold again. Thoughts on getting another replacement, or simply upgrading? : r/AppleWatch Series 4 approaching battery replacement threshold again. Thoughts on getting another replacement, or simply upgrading? : r/AppleWatch](https://preview.redd.it/series-4-approaching-battery-replacement-threshold-again-v0-do4qvnutgnab1.jpg?auto=webp&s=0400dde089886ac29bcf3d887487a6c9149f624d)
Series 4 approaching battery replacement threshold again. Thoughts on getting another replacement, or simply upgrading? : r/AppleWatch
![Amazon.com: Soseieiu Replacement Battery for Apple Watch Series 4 40mm,(𝟮𝟬𝟮𝟯 𝗡𝗲𝘄 𝗨𝗽𝗴𝗿𝗮𝗱𝗲𝗱) 224.9mAh A2058 A1975 A1977 with Repair Parts + Installation Manual + Back Cover Adhesive : Cell Phones & Accessories Amazon.com: Soseieiu Replacement Battery for Apple Watch Series 4 40mm,(𝟮𝟬𝟮𝟯 𝗡𝗲𝘄 𝗨𝗽𝗴𝗿𝗮𝗱𝗲𝗱) 224.9mAh A2058 A1975 A1977 with Repair Parts + Installation Manual + Back Cover Adhesive : Cell Phones & Accessories](https://m.media-amazon.com/images/I/61rjik1MlcL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Soseieiu Replacement Battery for Apple Watch Series 4 40mm,(𝟮𝟬𝟮𝟯 𝗡𝗲𝘄 𝗨𝗽𝗴𝗿𝗮𝗱𝗲𝗱) 224.9mAh A2058 A1975 A1977 with Repair Parts + Installation Manual + Back Cover Adhesive : Cell Phones & Accessories
![Battery usage/capacity AppleWatch 4 vs 5 after 1y. Left one has a year with capacity 100%, right one (Apple Watch 5) has 10 months with maximum capacity 92%. Is it normal? Looks Battery usage/capacity AppleWatch 4 vs 5 after 1y. Left one has a year with capacity 100%, right one (Apple Watch 5) has 10 months with maximum capacity 92%. Is it normal? Looks](https://preview.redd.it/6sc5vcx39s161.jpg?auto=webp&s=6b4ae1244ceac0927a39133c8e91d49acaa7a9a0)
Battery usage/capacity AppleWatch 4 vs 5 after 1y. Left one has a year with capacity 100%, right one (Apple Watch 5) has 10 months with maximum capacity 92%. Is it normal? Looks
![VIVISTAR Smart Watch 1.96"Full Touch for Android and iPhone Bluetooth Call 300mAh Battery Capacity Smartwatches with Fitness Tracker 100+ Sports Modes Waterproof Wrist Watch for Men Women(Silver) - Walmart.com VIVISTAR Smart Watch 1.96"Full Touch for Android and iPhone Bluetooth Call 300mAh Battery Capacity Smartwatches with Fitness Tracker 100+ Sports Modes Waterproof Wrist Watch for Men Women(Silver) - Walmart.com](https://i5.walmartimages.com/seo/VIVISTAR-Smart-Watch-1-96-Full-Touch-Android-iPhone-Bluetooth-Call-300mAh-Battery-Capacity-Smartwatches-Fitness-Tracker-100-Sports-Modes-Waterproof-W_cdb0aa9f-e321-4508-86f5-283342956f3c.2b54b720beabfca9422ff08bbf76428d.jpeg)