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Ceramic Apple Watch Series 12 Is Bigger and Heavier Than Other Models

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Apple Watch Series 12 models with a ceramic case are physically larger than the same model in aluminum or titanium, according to Apple's own tech specs.

series-12-ceramic.jpg

At 46mm, Apple's tech specs page lists the aluminum and titanium case at 46mm by 40mm by 9.7mm, while the ceramic case sold under the same 46mm name measures 47mm by 41mm by 9.85mm, a millimeter taller, a millimeter wider, and 0.15mm thicker. The 42mm size follows the same pattern: 42mm by 37mm by 9.7mm for aluminum and titanium, versus 43mm by 37mm by 9.85mm for ceramic, a millimeter taller and 0.15mm thicker, with the width unchanged.

The display is unaffected. Apple lists the same 1,196 sq mm display area at 46mm and 970 sq mm at 42mm across all three materials, meaning the extra size is entirely case, not screen.

The ceramic models are also heavier. At 46mm, the Pearl White ceramic case weighs 51.3 grams and Night Blue weighs 52.9 grams, against 39.5 grams for the equivalent aluminum model and 44.9 grams for titanium, up to 34% heavier than aluminum and 18% heavier than titanium. The 42mm ceramic models weigh 41.7 grams in Pearl White and 42.8 grams in Night Blue, against 32.2 grams for aluminum and 36.5 grams for titanium, up to 33% heavier than aluminum and 17% heavier than titanium.

This appears to be the first time Apple has sold different physical case dimensions under the same nominal watch size. The increased size is presumably a design compromise owing to the entirely different material, although the earlier ceramic Apple Watch Edition models used identical case dimensions across materials at a given size, with only the weight changing between them.

Ceramic returns to the Apple Watch lineup with the Series 12 after a six-year absence, having last been offered on Series 5 in 2019 before Apple dropped it for Series 6 in 2020.

Apple Watch Series 12 in ceramic starts at $899, compared with $399 for aluminum and $699 for titanium, in Pearl White or Night Blue finishes. It launches on September 18.

Article Link: Ceramic Apple Watch Series 12 Is Bigger and Heavier Than Other Models
 
Article Link
https://www.macrumors.com/2026/09/10/ceramic-apple-watch-series-12-is-bigger/
Would have been good if it was having same physical dimensions but don't think one will easily notice the difference. 1mm difference in height and width only. Good that ceramic is an option this year after a long time.
 
I’m still good with my titanium series 10 (got DIRT CHEAP brand new on Amazon earlier this year!) but dang I’d like to have a ceramic.

Maybe in a few years.
 
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I’ve always bought the steel or titanium silver one to match my Apple Watch 1’s link bracelet. Usually upgrade every 2-3 years but had to buy the hermes one for series 10 to get silver titaniun 🙄. That cost so much more so I’m good on upgrading until there’s actual new sensors for blood pressure or glucose trends. I wouldn’t want anything bigger than series 10 even 1mm is too much at this point.
 
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I had the series 2 and 3 white ceramic (bought both used at significantly lower cost). I loved the ultra bright white. I’m cautiously optimistic on the “pearl” color. I want that white look again but I’m expecting this to feel a bit more beige. I always paired it with the space grey link band and called it my storm trooper watch.
 
Perhaps people aren't used to metric units but for exemple there are hairs thicker than 0.15 mm and the difference between 41.7 grams and 42.8 grams is a pinch of salt.
For a watch it's also more intuitive to use cm^2 as it's easier to visualize the said square. For exemple instead of 1200 mm^2 you have 12 cm^2 which is a square of 4 by 3 cm.
 
I think the thing to keep an eye on is battery capacity... though that likely won't be different between case material. There's double the RAM to power and refresh now, and the Siri AI rewind must have some sort of drain. My series 9 two days ago suggested it was going to turn off raise wrist to invoke Siri, as it noted I didn't use it, and, there was a battery benefit to disabling it... So, if the rewind feature can also be disabled, wondering what sort of battery benefit we'd see.
I swear the battery life is never great in a device like this, which is my biggest gripe.
 
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