Samsung Galaxy S8 vs Samsung Galaxy S8 Active vs Samsung Galaxy A51 - specs comparison

Display

Size:

5.8 inches

6.5 inches

Resolution:

2960 x 1440 pixels, 18.5:9 ratio, 570 PPI

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

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

Technology:

Super AMOLED

Screen-to-body:

84.26 %

74.89 %

87.37 %

Features:

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

60Hz refresh rate, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 835 MSM8998

Samsung Exynos 9611

Processor:

Octa-core, 2350 MHz, Kryo 280, 64-bit, 10 nm

Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm

GPU:

Adreno 540

Mali-G72 MP3

RAM:

4GB LPDDR4

Internal storage:

64GB

128GB, available to use: 105.9 GB

Storage expansion:

microSDXC up to 256 GB

microSDXC up to 512 GB

Device type:

Smartphone

OS:

Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI

Android (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, Qi and Powermat wireless charging

Fast charging

Camera

Rear:

Single camera

Quad camera

Main camera:

12 MP (OIS, PDAF)

48 MP (PDAF)

Specifications:

F1.7; 26 mm; 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) (30 fps), 2560x1440 (QHD), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (240 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 light, EIS, Video calling, Video sharing

Hyperlapse, EIS

Front:

8 MP (Wide Angle, Autofocus, HDR)

32 MP (HDR)

Video capture:

2560x1440 (QHD)

1920x1080 (Full HD)

Design

Dimensions:

5.86 x 2.68 x 0.31 inches (148.9 x 68.1 x 8.0 mm)

5.99 x 2.95 x 0.39 inches (152.1 x 74.9 x 9.9 mm)

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

Weight:

5.47 oz (155.0 g)

7.34 oz (208.0 g)

6.07 oz (172.0 g)

Materials:

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

Back: Plastic; Frame: Plastic

Resistance:

Water, Dust; IP68

Water, Dust, Shock, Vibration, Temperature; IP68; MIL-STD-810 certified

Biometrics:

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

2D Face unlock, In-screen fingerprint

Keys:

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

Right: Volume control, Lock/Unlock key

Colors:

Midnight black, Orchid gray, Arctic silver, Coral blue, Maple gold, Rose pink, Burgundy red

Gold, Gray

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

Cellular

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 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)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 20(800 DD), 28(700 APT), 29(700 d), 30(2300 WCS)

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)