As expected, Apple launched a new Apple Watch Series 6 at its Time Flies event, bringing a new high-end wearable to join an inaugural mid-range model and a brand-new service that’s powered by Apple’s iconic wearable.

But while it might not seem like the Series 6 is a huge upgrade, it’s actually bigger than it seems. Here’s why: 

The Blood O2 sensor is better than it is on Fitbits

As rumored, the Apple Watch Series 6 can measure the oxygen levels in your blood, thanks to a new sensor that uses red and infrared light to calculate the color of your blood and determine the amount of oxygen in your blood. Unlike Fitbit devices, which measure your blood-oxygen levels while you sleep, you can take a Blood O2 reading in just 15 seconds at any time of day.

The display is better than ever

Apple launched a new, larger display with the Series 4, and an always-on option with the Series 5. With the Series 6, it’s even better. Apple says the always-on display on the Series 6 is 2.5 times brighter when your wrist is down, one of the complaints we had with the Series 5. With a new, efficient S6 chip, the battery life won’t suffer.

Apple

You (kinda) don’t need an iPhone to use it

While we’re still not quite at full iPhone independence, Apple has introduced a new way for families to set up Apple Watches for people who don’t have an iPhone, like kids, parents or, we suppose, Android users. While those watches won’t work in quite the same way—for one, you’ll need a cellular connection—they’ll be able to enjoy most of the same features, including the App Store, Messages, Maps, Apple Pay, Music, and of course, fitness tracking. It even has a new Schooltime feature that displays a yellow circle in the watch face “for teachers and parents to easily recognize, signifying that access to apps is restricted and Do Not Disturb is turned on.”

The new faces appear very useful

Apple always offers up some new faces with every Watch launch, but this year’s crop isn’t just about cartoon characters and colors. A bunch of new watch faces will bring a slew of useful looks and styles, including:

• GMT, which displays multiple time zones with a focus on where you are
• Chronograph Pro, which adds a series of digital dials including a tachymeter for measuring speed
• Typograph, which brings four new typestyles and scripts
• Stripes, which lets you add any color combination you want
• Memoji faces, and an animated and interactive collaboration with Geoff McFetridge

That’s much better than Woody and Buzz.

The watch is vital to Apple’s new service 

Alongside the new hardware, Apple also launched a new $10-a-month Fitness+ service that offers 10 types of workouts (yoga, cycling, dance, treadmill walk and run, strength, core, hit, rowing, and cool down) and Apple Music integration. Fitness+ is “powered by the Apple Watch,” automatically syncing when you start a workout on an iPhone or Apple TV, and using the metrics recorded on your wrist to guide your workout.