Apple Watch Series 9

Source

The Verge

Key Takeaways

• Exterior chassis casting is completely identical to Series 7 and 8; zero visual distinction unless choosing a specific new colorway.
• Heavily marketed Double Tap pinch gesture works on only a handful of stock Apple apps; third-party developers cannot bind it.
• Crippling Masimo patent injunction forced Apple to permanently disable the pulse oximeter blood oxygen sensor on retail units.
• Still chained to an 18-hour daily charging routine, forcing users to constantly babysit battery percentages before bedtime sleep tracking.

✅ Pros

• S9 SiP enables instant on-device Siri voice dictation without internet
• Display brightness doubles to 2000 nits for crystal clear outdoor legibility
• Certified carbon-neutral configurations highlight impressive manufacturing ethics

❌ Cons

• Stagnant exterior styling unchanged for three straight hardware cycles
• Double Tap pinch is heavily restricted and unsupported in third-party apps
• Blood oxygen hardware permanently shut down due to patent losses
• Stuck on the same frustrating 18-hour battery longevity barrier

📝 Verdict

"On-device Siri is great, but zero design change, restricted Double Tap, and a killed SpO2 sensor make it forgettable."

Source

• Video: Apple Watch Series 9 Review - 6 Months Later
• Channel: 6 Months Later | Type: Long-term review | Based on: YouTube transcript

Key points

• He bought it with his own money and used it for 6 months; battery life is good for a smartwatch but requires daily charging; he wears it to sleep and charges it while showering in the morning, and thanks to fast charging has never run low (the SE doesn't support fast charging)
• Siri responds noticeably faster, as the S9 SiP's Neural Engine lets more requests be processed on the watch itself
• The screen reaches up to 2,000 nits, twice the previous generation, making it easier to see in daylight and with sunglasses on
• He rarely uses Double Tap (which he calls the pinch): he often forgets it exists, and it doesn't respond as expected, often taking two tries to work
• Downsides: it must be paired with an iPhone; the battery isn't user-replaceable and repairability is poor; the sapphire glass version has been knocked many times in 6 months and still has no scratches

✅ Pros

• Battery life and fast charging
• Faster Siri
• Brighter screen
• Scratch-resistant sapphire glass

❌ Cons

• Requires an iPhone
• Battery not user-replaceable
• Some new features go unused

📝 Verdict

Recommended if you have an iPhone; but with only about half a year until the next model, some may want to wait for it—if you need one and find a good price, buy it.

Source

• Video: Apple Watch Series 9 : Full SCIENTIFIC Review
• Channel: The Quantified Scientist | Type: In-depth review | Based on: YouTube transcript

Key points

• He tested it for a week against reference devices such as the Polar H10 and the zMAX EEG headband (including 20 bike rides and 5 nights of sleep), and also on Theresa, who has a thinner wrist
• Heart rate tracking is very accurate, making it one of the best heart rate and sleep stage trackers he's tested
• He's very pleased with its sleep stage tracking, but says this holds for every Apple Watch running recent software
• GPS tracking gets 4/5 stars; blood oxygen couldn't be tested in detail in a low-oxygen environment, but Apple Watch blood oxygen readings are generally good
• Two big complaints: the Apple Health app presents data less well than rivals like WHOOP; performance is almost identical to the Series 8, and apart from Double Tap he can hardly tell them apart

✅ Pros

• Top-tier heart rate tracking
• Accurate sleep stage tracking
• Good GPS performance

❌ Cons

• Almost identical to the Series 8
• Weaker data presentation in the Health app

📝 Verdict

He would recommend it to friends and family, as the raw measurements are very reliable; but if the Series 8 is on sale for US$100 less, he'd suggest buying the previous generation.

Source

• Video: Apple Watch Series 9 In-Depth Review: Worth Upgrading?
• Channel: DC Rainmaker | Type: In-depth review | Based on: YouTube transcript

Key points

• He tested it swimming, cycling and running; the base model costs US$399, the same as in previous years
• Screen brightness doubles from 1,000 nits to 2,000 nits, slightly brighter side by side outdoors; the flashlight is more useful, and at night it can drop to 1 nit to save power
• The new S9 chip enables the "Double Tap" gesture: raise your wrist and tap two fingers together to cycle widgets, answer calls and more
• Offline Siri can only handle very limited scenarios, basically setting timers
• GPS and heart rate accuracy are very good, with only slight differences on wooded sections during runs and outdoor rides; the new topographic maps are currently only available in the US (mainly California)

✅ Pros

• Brighter screen
• Double Tap gesture
• Accurate GPS and heart rate
• Unchanged price

❌ Cons

• Small upgrade
• Limited offline Siri
• New maps limited by region

📝 Verdict

This is Apple's usual minor annual update, not designed for Series 8 owners but to entice Series 4, 5, 6 and even 7 owners to upgrade.