Galaxy S21 5G vs Galaxy S23

The Galaxy S23 is shorter than the Galaxy S21, but overall, these two smartphones are nearly the same size and weight. Measurements for the Galaxy S21 are as follows: 5.97” (H) x 2.80” (W) x 0.31” (D), with a weight of 6.0 ounces, and a 6.2” display size. In comparison, the Galaxy S23 measures 5.76” (H) x 2.79” (W) x 0.30” (D), weighs 5.9 ounces and features a 6.1” display size.

The Galaxy S21 features a 6.2-inch Dynamic AMOLED 2X Infinity-O display with a resolution of 2400 x 1080 at 421 pixels per inch. The Galaxy S21 display supports an aspect ratio of 20:9, refresh rates of up to 120Hz, and is HDR10+ certified.

The Galaxy S23 features a similar-sized display that shares many of the same features as the Galaxy S21. For example, the Galaxy S23 also has a Dynamic AMOLED 2X Infinity-O display with support for refresh rates up to 120Hz and is HDR10+ certified. The Galaxy S23 display measures 6.1 inches with a resolution of 2340 x 1080 at 425 pixels per inch and an aspect ratio of 19.5:9.

The Samsung Galaxy S21 has a 4000 mAh battery and the Galaxy S23 has a 3900 mAh battery. The Galaxy S21 and the Galaxy S23 charging speeds break down as follows: 25W fast wired charging, 15W standard wired charging, 15W Qi wireless charging, and 4.5W reverse wireless charging (Wireless Powershare).