Samsung has revealed the new Galaxy Watch 4 series alongside the Galaxy Z Fold 3 and the Galaxy Z Flip 3. There is the regular Galaxy Watch 4 and the more elegant-looking Watch4 Classic. They are basically the same in many ways. IFixit has opened the new Galaxy Watches to see what’s inside. The two are similar to the Galaxy Watch 3 so the internals may almost be the same with upgraded specs, features, and of course, the new Wear OS 3.0.
Let’s review the specs: Exynos W920, Mali-G68 GPU, integrated LTE connectivity, 1.19-inch or 1.36-inch circular Super AMOLED display, 330 PPI, 1.5GB RAM, 16GB onboard storage, and a 361 mAh battery for the c 46mm model. The 40mm Galaxy Watch4 comes with a 247mAh battery.
The usual sensors are available: gyro, accelerometer, light, geomagnetic, ECG, optical heart rate, and a bioelectrical impedance sensor. The Classic version comes with a Hall sensor. Expect IP68 rating with water resistance. The Samsung Galaxy Watch4 Classic features a rotating bezel.
To get inside the watches, open the back by removing four tri-point screws. Use a prying tool to remove the cover. You can see the rubber gasket that offers the IP68 rating. Inside you can see some flex cables and a wire plus an optical bio-sensing being handled by Texas Instruments AFE4500S.