Is the Apple Watch Series 12 Worth It? Reviews Praise the Sensors

The Apple Watch Series 12 reached stores on September 18, 2026, and the first reviews converge: it is the most meaningful leap in health tracking since ECG arrived, with no visual change. Engadget scored it 9.1/10; MacRumors and The Verge highlighted the sensors, gestures and faster Siri. Criticism centers on something that is not even available yet: the “Audio Intelligence” features, which use the microphone to listen to your surroundings. Here is the consensus on whether it is worth it — and for whom.

Quick answer: is it worth it?

If you use your watch for health and training, yes: the new sensing system samples heart rate every 5 seconds (previously every 5 minutes) and heart rate variability every 5 minutes (previously every 2–4 hours), feeding the new readiness score. If you own a Series 10 or 11 and do not care about metrics, you can wait. Price unchanged at $399; the ceramic version costs $500 more. The controversial listening features are optional and arrive later.

What reviewers praised

Sensors: from 5 minutes to 5 seconds

The Health Sensing System has electrodes with more contact area (more accurate ECG) and more efficient green LEDs. The result: heart rate sampled 60 times more often and HRV 24 times more often, with a new metric (RMSSD) alongside SDNN. It is the foundation of the readiness score, which needs seven nights to calibrate and tells you whether to train hard or rest — a feature Oura and Garmin had before Apple.

Gestures: single tap

On top of double tap and the wrist flick, the Series 12 adds single tap, which, in Engadget’s words, makes hands-free navigation “actually functional.”

Siri and charging

The Verge noted that AI Siri queries are faster than on the Ultra 3. Charging too: 12 minutes took it from 51% to 79% in Engadget’s test; Apple quotes 80% in 30 minutes.

What reviewers criticized

Siri “listening”

The Live Rewind and Siri Recaps features, which use the microphone to capture nearby sounds and speech and then summarize them, dominated the privacy debate — even though they are not available at launch. Engadget’s take: they are optional and can be declined without affecting anything else.

Same battery, rough edges in watchOS

Battery life matches the Series 11 (light days end around 50%). And watchOS 27’s new dynamic app grid has “some quirks.”

Review summary

Aspect	Consensus
Health sensors	Biggest advance in years; HR every 5 s, HRV every 5 min
Readiness score	Good, but arrives after Oura, Whoop and Garmin
Gestures	Single tap makes hands-free use functional
Battery	Same as Series 11; fast charging
Audio Intelligence	Controversial on privacy; optional; not available at launch
Price	$399 (unchanged); ceramic +$500
Score	9.1/10 (Engadget)

Who should upgrade

Worth it: owners of a Series 7, 8 or 9 (a different generation of sensors, chip and gestures) and anyone who uses the watch for training and sleep. Can wait: Series 10 and 11 owners who are not metrics-focused. Ultra 4: only if two-day battery life is decisive.

Frequently asked questions

What score did the Apple Watch Series 12 get in reviews?

Engadget gave it 9.1/10, highlighting the new sensing system, gestures and new complications; the only caveat was watchOS 27’s app grid.

What is the Apple Watch readiness score?

A daily index that combines heart rate, variability and sleep to indicate whether your body is ready for exertion. It needs seven nights of data to calibrate.

Does the Apple Watch Series 12 listen to conversations?

The Live Rewind and Siri Recaps features use the microphone to capture surroundings, but they are optional and not available at launch. Without enabling them, the watch works normally.

At DigitalRadar, we summarize the reviews so you can decide without reading ten sites. Stay on the radar for the next roundup.