I was at best buy yesterday and the Apple Watch stated life is 18 hours or so, but all Samsung watches I saw usually state time in days like 8 days or so. One of my friends has a Samsung Watch and gets about 5 days battery life between charges, while his wife’s Apple Watch has to be charged every night before bed.

I’m just curious, what’s the difference that the battery life is so drastically different? Is it the screen, the features, or battery size? They both seem to do roughly the same thing from what I can tell.

Thanks!