Prior to this, we had heard that the Apple Watch would last anywhere between 2.5-4 hours with heavy usage. However after tweaking the device, 9to5Mac’s source who has had hands-on experience with the device tells them that the watch’s battery life has since been extend to about 5 hours with heavy usage. The wearable is also expected to last an entire day with a mix of active and passive usage.
However their source did tell them that the device still needs to be recharged daily as it would most likely not last through the second day. There will also be a Power Reserve Mode which will help to conserve battery where possible. This cuts out optional services while retaining the core features of the Apple Watch and can be activated anytime, not just when the battery of the watch is running low.
Hopefully this is true as we will most likely need to take the watch for a spin ourselves to see if the claims have any merit to them. The Apple Watch is expected to be detailed on the 9th of March so do check back with us then for the details.