With newer Apple Watch models on the market, you might wonder whether the Series 9 is still worth your money. The short answer? Absolutely. Here's our full review from a refurbished buyer's perspective.
What the Series 9 Gets Right
The Apple Watch Series 9 introduced the S9 chip, bringing significant performance improvements over the Series 8. The new Double Tap gesture — where you tap your index finger and thumb together to control the watch — is genuinely useful once you get used to it. It lets you answer calls, stop timers, and dismiss notifications without touching the screen.
The Series 9 also features a brighter always-on display (up to 2,000 nits), making it far easier to read outdoors on sunny days. Health tracking is comprehensive: ECG, blood oxygen monitoring, sleep tracking, crash detection, and advanced workout metrics are all included.
Health & Fitness Features
For most people, the health suite on the Series 9 is more than enough. You get heart rate monitoring, irregular rhythm notifications, menstrual cycle tracking, and full integration with Apple Health and third-party fitness apps. The Series 9 also supports temperature sensing — useful for ovulation tracking and recovery monitoring.
The Apple Watch Series 9's health sensors have been validated in numerous clinical studies. For many users, this watch has literally flagged health issues they weren't aware of — an incredible value at any price point.
Battery Life
Apple rates the Series 9 at 18 hours of standard use, or up to 36 hours in Low Power Mode. In practice, most users get through a full day comfortably with charge to spare. It's not the multi-day battery you'll find on some competitors, but if you charge it nightly it's never an issue.
Should You Buy Refurbished?
Refurbished Apple Watches at ReNu Tech come with a fresh battery (replaced if below 85% capacity), a full inspection, and our 12-month warranty. A refurbished Series 9 starts at $249 — compared to $399 new. That's a saving of $150 for an essentially identical experience.
Our Verdict
The Apple Watch Series 9 remains one of the most capable smartwatches you can buy. For the refurbished price, it's an extraordinary value. Unless you specifically need the Ultra's ruggedness or extended battery, the Series 9 covers everything the vast majority of users will ever need.