Apple · Smartwatch
Apple Watch Series 9
Last Apple Watch with Double Tap’s debut. Replaced by the slimmer Series 10.
$399Apple →
Battery18 hr
Water5 ATM
Weight38.7g
Sensors11
OSWatchos
The Series 9 introduced the Double Tap gesture and brought the S9 chip’s on-device Siri. The Series 10 is thinner with a wider screen, but a refurb Series 9 carries every health feature you’d expect on watchOS — no compromises on tracking.
Strengths
- Double Tap gesture works without lifting the other hand
- 2000-nit peak brightness
- On-device Siri requests
Tradeoffs
- Only 18-hour battery — single-day device
- Replaced by thinner Series 10
- iPhone-only
Full specs
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Common questions
- How much does the Apple Watch Series 9 cost?
- The Apple Watch Series 9 starts at $399, with larger sizes and premium finishes costing more.
- Does the Apple Watch Series 9 require a subscription?
- No. Apple sells an optional premium tier at a monthly fee for deeper analysis, but the Apple Watch Series 9 tracks and syncs without it.
- How long does the Apple Watch Series 9 battery last?
- About 18 hr of typical use per charge. Heavy GPS use, an always-on display, and continuous sensing all pull that number down.
- Is the Apple Watch Series 9 waterproof?
- The Apple Watch Series 9 is rated 5 ATM (50m), which covers showering, swimming, and surface water sports. It is not a dive rating.
- Does the Apple Watch Series 9 work with iPhone and Android?
- It pairs with iPhone only — there is no Android app.
- Is the Apple Watch Series 9 still worth buying?
- The Apple Watch Series 9 came out in 2023 and Apple has discontinued it, so new stock is limited and prices vary. Check it against the current smartwatch lineup before buying.