The larger ceramic Apple Watch Series 12 measures 47 mm tall, a millimeter taller than titanium, yet both show the same 416 by 496 pixels. I'd choose ceramic for the finish. There's no more room to read a text on it.
The extra weight depends on the color. Apple's specifications put the larger titanium case at 44.9 grams. Pearl White ceramic adds 6.4 grams. Night Blue adds 8. For iPhoners who track sleep, the smaller Pearl White case makes a better starting point for a fitting: at 41.7 grams, it weighs less than the larger titanium one.
MacRumors points out where ceramic earns its keep: the polished case resists the fine scratches that can show up on titanium. A hard knock can still chip it. If it's scratches on the screen that concern you, titanium already has the same sapphire front crystal. The aluminum model's Ceramic Shield 2 name refers to the glass over the display.
Aluminum, titanium and ceramic all have the S11 chip and the same Series 12 health sensors. Apple rates all three for up to 24 hours of normal use.
I'd bring the band you wear most to the store. Apple pairs Pearl White with a Sand Sport Band whose ceramic pin matches the case, a detail you lose the moment you swap bands. With a dark woven band, the white rim around the screen stands out even when the display is off. If you prefer the look of a metal bracelet running right up to the watch, try that same bracelet on titanium before you decide.
