The Apple Watch Ultra 4 is the company’s most capable smartwatch. Whether you intend to put its many tracking features to the test, or you simply want the longest battery life of any Apple Watch, it’s currently on sale for $699.99 ($100 off) in multiple colors at Amazon, matching its all-time low price.

Powered by Apple’s new S11 chip (also in the Series 12), the Apple Watch Ultra 4 delivers faster performance than the last-gen version, plus a handful of new Apple Intelligence features. Of note, those include Sound Recognition, which alerts you to noises like alarms and doorbells, and the Live Rewind feature that lets you revisit the last 15 seconds of an in-person conversation. An upcoming Siri Recap feature will be able to create summaries of conversations for later reference.

This model has broader health and fitness capabilities than previous models, too. Its sensors promise more accurate EKG measurements, while the watch can track your heart rate as often as every five seconds. The new Readiness feature (not available on the Ultra 3 and earlier models) also analyzes your recent activity, sleep quality, and other health metrics to generate a score from zero to 10, helping you determine whether to push yourself or take it easy.

On the hardware front, battery life is perhaps the biggest highlight, with Apple promising up to 50 hours on a charge — twice as long as the Series 12. Like its predecessor, this model features Apple’s brightest watch display and a rugged design that’s water-resistant up to 100 meters and IP6X-rated for dust resistance. It also retains conveniences like the second-generation Ultra Wideband chip for Precision Finding, and helpful gesture controls so you can you can perform actions with a double tap or flick of your wrist.