Galaxy S21 Plus 5G vs Galaxy S23

The Galaxy S21+ has a larger display size than the Galaxy S23, and the S21+ is also larger and heavier in overall size. The Galaxy S21+ features a 6.7” display size and the Galaxy S23 features a 6.1” display size. Otherwise, the Galaxy S21+ measures 6.36” (H) x 2.98” (W) x 0.31” (D) and weighs 7.1 ounces, and the Galaxy S23 measures 5.76” (H) x 2.79” (W) x 0.30” (D) and weighs 5.9 ounces.

The Galaxy S21+ has a larger display than the Galaxy S23, but aside from the smaller size, the Galaxy S23 features a quality high-resolution display.

The Galaxy S21+ features a 6.7-inch Dynamic AMOLED 2X Infinity-O display with a resolution of 2400 x 1080 at 394 pixels per inch and a 20:9 aspect ratio. To compare, the Galaxy S23 features a 6.1-inch Dynamic AMOLED 2X Infinity-O display with a resolution of 2340 x 1080 at 425 pixels per inch and a 19.5:9 aspect ratio.

Otherwise, the Galaxy S21+ and Galaxy S23 displays are always-on, HDR10+ certified, and support refresh rates up to 120Hz.

The Galaxy S21+ is powered by a 4800 mAh battery and the Galaxy S23 is powered by a 3900 mAh battery. Aside from the difference in battery capacities, the Galaxy S21+ and the Galaxy S23 both support 25W fast wired charging, 15W standard wired charging, 15W Qi wireless charging, and 4.5W reverse wireless charging.