For folks seeking the best of the best from their smartwatch, we recommend the Apple Watch Series 7. It’s bright and fast, and has it the strongest crack-resistant screen of any model yet. It includes other premium features, such as always-on, blood-oxygen measurement, and ECG. The Series 7 also offers an 18-hour battery life, snappy performance, and the fastest charge. While owners of newer Apple Watch models wouldn’t see a major boost in performance in moving to the Series 7, we think first-time owners, as well as anyone upgrading from a Series 3 (or older), would note major improvements overall.