sizes and types of batteries that power your electronic devices. First, there are the round, non-rechargeable button cells ...

Apple likes to talk about battery life in hours rather than capacity, measured in milliamperes. As a result, the latest Watch Series 8 has a claimed life of 18 hours, just like its predecessor ...

The Watch 7 comes in two sizes: 40mm and 44mm. While both are basically the same, we dove into the specs to compare the biggest differentiators: fit, battery performance, and price. Here’s what ...