Upgraded my watch from a Series 6, to the Series 10 after the Series 11 came out, making this one a more realistic price. I love how fast it will charge on the 20watt wall adapter. I had turned off the "always on display" on my previous watch to preserve battery life, but I don't need to to that anymore. I really appreciate the functionality of taping my thumb and pointer finger together to answer calls and scroll through the open apps on my watch. Sound quality for phone calls is great. The ability to find my phone, using the button on the watch, is way better as the location is more precise than it used to be.\n\nI also upgraded my child's Series SE version 1 to this watch. He places it on the charger for about 10 minutes after school and he is good to go all evening. His is on a cellular plan since he doesn't have a iPhone of his own. So his battery life doesn't last a long as mine, however with the fast charging, he doesn't have to pause as long, before heading out to play. The only downside is that he can stop sharing his location. I wish that feature could be turned on in the parent app. He was also able to download some games, which made this a distraction during school. So I guess apple has some bugs to work out, since we had turned off that ability, and he was able to do it anyway.