While 18 hours is what apple says, their scenario for 18 hour usage is probably very uncommon. At least for me it is. And thus I get around 2 days battery life

While 18 hours is what apple says, their scenario for 18 hour usage is probably very uncommon. At least for me it is. And thus I get around 2 days battery life with a 4 year old series 2 watch. Their official test includes "45 minutes of app use, and a 60-minute workout with music playback from Apple Watch via Bluetooth"[0] - so unless you plan on doing that you can easily expect double the battery time. [0] - https://www.apple.com/watch/battery/ https://www.apple.com/watch/battery/