Samsung Galaxy S9 vs Samsung Galaxy A51 Specs Comparison

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

Display

Size:

5.8 inches

6.5 inches

Resolution:

2960 x 1440 pixels, 18.5:9 ratio, 568 PPI

2400 x 1080 pixels, 20:9 ratio, 405 PPI

Technology:

Super AMOLED

Refresh rate:

60Hz

Screen-to-body:

84.36 %

87.37 %

Features:

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

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 845 SDM845 (10 nm)

Samsung Exynos 9611 (10 nm)

Processor:

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

Octa-core, 2300 MHz, 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53, 64-bit

GPU:

Adreno 630

Mali-G72 MP3

RAM:

4GB LPDDR4

Internal storage:

64GB

128GB, available to use: 105.9 GB

Storage expansion:

microSDXC up to 400 GB

microSDXC up to 512 GB

Device type:

Smartphone

OS:

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

Android (11, 10), Samsung One UI

Battery

Capacity:

3000 mAh

4000 mAh

Type:

Li - Ion, Not user replaceable

Li - Polymer, Not user replaceable

Battery life test results:

link

Charging:

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

Fast charging

Camera

Rear:

Single camera

Quad camera

Main camera:

12 MP (OIS, PDAF)

48 MP (PDAF)

Specifications:

F1.5/F2.4; 1/2.55"; 1.4 μm

F2.0; 26 mm; 1/2"; 0.8 μm

Second camera:

12 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm

Third camera:

5 MP (Macro)

Specifications:

Aperture size: F2.4; Focal Length: 40 mm

Fourth camera:

5 MP (Depth information)

Specifications:

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm

Video recording:

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

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)

Features:

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

Hyperlapse, EIS

Front:

8 MP (Autofocus, HDR)

32 MP (HDR)

Video capture:

2560x1440 (QHD) (30 fps)

1920x1080 (Full HD)

Design

Dimensions:

5.81 x 2.70 x 0.33 inches (147.7 x 68.7 x 8.5 mm)

6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)

Weight:

5.75 oz (163.0 g)

6.07 oz (172.0 g)

Materials:

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

Back: Plastic; Frame: Plastic

Resistance:

Water, Dust; IP68

Biometrics:

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

2D Face unlock, In-screen fingerprint

Features:

Notification light

Keys:

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

Right: Volume control, Lock/Unlock key

Colors:

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

Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Cellular

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), 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)

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), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)