Battery life is the only thing I was really worried about when I bought this. Does everything I want it to do. Update: I've had this watch for about four days now and found out a few things. LTE and WiFi use a god awful lot of battery. I ran multiple tests with the battery on this watch and think they would be beneficial to provide in a review. Test Results: • Battery Charging Time The watch was completely dead when I opened the box. Went from 0 to 50% in less than a half hour and finished it's charging in about another half hour. In total charging from 0 to 100% was about an hour. • Battery Life When I had LTE and WiFi on, It used a whole lot more battery life than it did with it only when needed, or off. All of these battery tests were run from 5:30 AM to 5:30 PM. With LTE and WiFi on all day I was left with about 15 precent left. With LTE and WiFi on only when needed, I was left with about 40 precent left. With it off all day, (Only Bluetooth was on) I was left with 60 precent. When I ran these battery life tests, tilt to wake was off to save battery. Your personal results may vary depending on usage. * BATTERY TESTS END HERE * --- --- --- --- --- --- --- --- My Review: • Quality Watch feels very high quality. Came in a really well packaged box. Felt really nice to open. • Personalization You are able to change out bands you buy aftermarket, or from the Google store. My recommendation is to buy aftermarket bands. Google's bands are overpriced. You are also able to change the watch face and color (depends on face) to your liking. • Setup Setup was very seamless. It was really just clicking buttons and agreeing to TOS and things like that. With eSim activation it was very seamless with Google Fi. If you use any other service providers. I don't know how that will work. • LTE Costs? With Google Fi, there is no extra cost to adding your watch to your plan. (Max. of 1 watch per user on plan) Verizon, T-Mobile, AT&T, and other mobile providers costs may vary. I recommend for you to create a customer service ticket before buying this watch with LTE if you use anything else other than Google Fi. • Emergency Features Wear OS 4 on the Pixel Watch includes fall detection, safety check, SOS, Medical Info Access, and Emergency Sharing for your safety and protection. For more information about what those features are, I recommend for you to visit the Google page for the Pixel Watch. • Apps Functionality Apps are fairly smooth. Pixel Watch comes with a 6 months fitbit premium trial. Both apps setup is fairly smooth. Fitbit is also a part of health Connect for Pixel phones so it will link up with other fitness apps you have for your phone or watch.