Galaxy S21 5G vs Galaxy S23

Swappasaurus says...
The Galaxy S21 was released in January 2021 and the Galaxy S23 was released in February 2023. The Galaxy S21 and the Galaxy S23 share some similarities, such as up to 256GB of storage, 8GB of RAM, 5G cellular connectivity, and nearly identical display size. The Galaxy S21 features a 6.2” display and the Galaxy S23 features a 6.1” display. On the other hand, the Galaxy S23 is two years newer and as a result, is powered by the more powerful Snapdragon 8 Gen 2 mobile processor.
Price Comparison
Galaxy S21 5G vs Galaxy S23 Pricing
Specs Comparison
The key specs for the Galaxy S21 include a 6.2-inch Dynamic AMOLED 2X FHD+ display, a Snapdragon 888 processor, Adreno 660 GPU, WiFi 6, Bluetooth 5.0, and a 4000 mAh battery.
The key specs for the Galaxy S23 include a 6.1-inch Dynamic AMOLED 2X FHD+ display, a Snapdragon 8 Gen 2 processor, Adreno 740 GPU, WiFi 6E, Bluetooth 5.3, and a 3900 mAh battery.
The shared specs include 5G cellular connectivity, up to 256GB of storage, 8GB of RAM, an IP68 rating for dust and water resistance, stereo speakers, NFC, USB-C, and an ultrasonic fingerprint sensor.
Size | Galaxy S21 5G | Galaxy S23 |
---|---|---|
Width | 71 mm 2.8 inches | |
Height | 152 mm 6.0 inches | |
Depth | 8 mm 0.3 inches | |
Weight | 170 g 6.0 ounces |
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.
Camera | Galaxy S21 5G | Galaxy S23 |
---|---|---|
Primary | 12.2 MP | |
Resolution | 4032x3024 |
The Galaxy S21 features a 12MP wide, 12MP ultra-wide, and 64MP telephoto camera array on the back, and a 10MP wide-angle selfie camera on the front. To compare, the Galaxy S23 features a 50MP wide, 12MP ultra-wide, and 10MP telephoto camera array on the back, and a 12MP wide-angle selfie camera on the front.
Display | Galaxy S21 5G | Galaxy S23 |
---|---|---|
Resolution | 1080x2400 | |
Screen Size | 158 mm 6.2 in | |
Pixels Per Inch | 424 ppi | ppi |
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.
Battery | Galaxy S21 5G | Galaxy S23 |
---|---|---|
Capacity | 4000 mAh | mAh |
Longevity | 15 hours | hours |
USB | USB-C |
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).
Color Choices
Galaxy S21 5G
Available in 4 colors:
-
White
-
Gray
-
Pink
-
Violet
Galaxy S23
Available in 6 colors:
-
Black
-
Cream
-
Graphite
-
Green
-
Lavender
-
Lime Green
Galaxy S21 5G vs Galaxy S23 Colors

The Galaxy S21 is available in the following colors: Phantom Gray, Phantom White, Phantom Violet, and Phantom Pink. In comparison, the Galaxy S23 is available in the following colors: Phantom Black, Lavender, Cream, Green, Lime, and Graphite.
Storage Options
Galaxy S21 5G vs Galaxy S23 Storage

The Galaxy S21 and the Galaxy S23 are available with 128GB or 256GB of storage. The Galaxy S23 is also available in a 512GB storage configuration.
Galaxy S21 5G vs Galaxy S23 Reviews
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