Anyone seen the roadrunner? Of course, you haven’t, because it’s on my wrist. The biggest upgrade with the Apple Watch Series 3 is it’s responsiveness and battery life improvements.
Overview
Coming from the original Apple Watch (lovingly known as Series 0), the speed increase is huge with Series 3 with GPS. Not only is the hardware much improved internally, watch OS 4 brings out the best in it. From an improved workout app, Siri on board and a carousel of complications — this is a solid upgrade. It is also reported that the speed increase is even notable from Series 1 and Series 2.
Speed
Speed increases are the biggest and best thing about the new Series 3 watch and is seen from the moment you raise your wrist from the moment you lower it. Even the most mundane and simple tasks such as swiping from watchface to watchface, opening an app and more — say goodbye to frame drops and hello to a perfectly smooth smartwatch experience.
watch OS 4
What does watch OS 4 bring to the table besides the very useful “Now Playing” complication? First off, Now Playing is an excellent addition and automatically puts your media front and center on your watch when there is something playing on the iPhone, just makes sense.

With Siri here, she can actually respond to you with her voice, which is only due to the new processor in the Series 3 device. Apple Watch is an industry leading fitness device and the OS upgrade brings updates to the Workout app with more workouts to choose from an integration into new machines that will be coming to a gym near you.
Battery Life
Unbelievable. The upgrade from Series 0 to Series 3 is massive in this respect. Since purchase, I’ve gone to sleep after having it off of the charger all day with the battery at 84% and woke up with the battery at 77% — that is with light to moderate use the previous day. Just note that if this was my Series 0 it would’ve bit the dust overnight….
TLDR
Apple Watch Series 3 with GPS or with GPS and LTE are both considerable updates to the Apple Watch line and highly suggested if you’re in the market for a new wearable device.