Samsung Galaxy S21 vs Samsung Galaxy S9+ Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.2 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 424 PPI

2960 x 1440 pixels, 18.5:9 ratio, 531 PPI

Technology:

Dynamic AMOLED

Super AMOLED

Refresh rate:

120Hz (adaptive)

Screen-to-body:

86.06 %

83.68 %

Peak brightness:

1300 cd/m2 (nit)

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 888 (5 nm)

Qualcomm Snapdragon 845 SDM845 (10 nm)

Processor:

Octa-core, 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680, 64-bit

Octa-core, 2800 MHz, Kryo 385, 64-bit

GPU:

Adreno 660

Adreno 630

RAM:

8GB LPDDR5

6GB LPDDR4

Internal storage:

128GB (UFS 3.0), not expandable

64GB

Storage expansion:

microSDXC up to 400 GB

Device type:

Smartphone

OS:

Android (13, 12, 11), Samsung One UI

Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI

Battery

Capacity:

4000 mAh

3500 mAh

Type:

Li - Polymer, Not user replaceable

Li - Ion, Not user replaceable

Charging:

Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging

Max charge speed:

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Triple camera

Dual camera

Main camera:

12 MP (OIS, PDAF)

Specifications:

F1.8; 26 mm; 1/1.76"; 1.8 μm

F1.5/F2.4; 26 mm; 1/2.55"; 1.4 μm

Second camera:

64 MP (Telephoto, OIS, PDAF)

12 MP (Telephoto, OIS, Autofocus)

Specifications:

Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.6"; Pixel size: 1 μm

Third camera:

12 MP (Ultra-wide, Autofocus)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Flash:

LED

Video recording:

7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS

HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, EIS, Video calling, Video sharing

Front:

10 MP (PDAF, HDR)

8 MP (Autofocus, HDR)

Video capture:

3840x2160 (4K UHD) (60 fps)

2560x1440 (QHD) (30 fps)

Design

Dimensions:

5.97 x 2.80 x 0.31 inches (151.7 x 71.2 x 7.9 mm)

6.22 x 2.91 x 0.33 inches (158.1 x 73.8 x 8.5 mm)

Weight:

6.03 oz (171.0 g)

6.67 oz (189.0 g)

Materials:

Back: Plastic; Frame: Aluminum

Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum

Resistance:

Water, Dust; IP68

Biometrics:

2D Face unlock, Ultrasonic in-screen fingerprint

Iris scanner, 2D Face unlock, Fingerprint (touch)

Features:

Notification light

Keys:

Right: Volume control, Lock/Unlock key

Left: Volume control, Other; Right: Lock/Unlock key

Colors:

Phantom pink, Violet, Gray, White

Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue, Polaris blue

Cellular

5G:

n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave

4G (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)