Samsung Galaxy A21 vs Samsung Galaxy S8 Specs Comparison

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

Display

Size:

6.5 inches

5.8 inches

Resolution:

1600 x 720 pixels, 20:9 ratio, 270 PPI

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

Technology:

IPS LCD

Super AMOLED

Refresh rate:

60Hz

Screen-to-body:

79.20 %

84.26 %

Features:

Ambient light sensor, Proximity sensor

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

Hardware

System chip:

Mediatek Helio P35 MT6765 (12 nm)

Qualcomm Snapdragon 835 MSM8998 (10 nm)

Processor:

Octa-core, 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53, 64-bit

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

GPU:

PowerVR GE8320

Adreno 540

RAM:

3GB LPDDR4

4GB LPDDR4

Internal storage:

32GB (eMMC 5.1), available to use: 19.8 GB

64GB

Storage expansion:

microSDXC up to 512 GB

microSDXC up to 256 GB

Device type:

Smartphone

OS:

Android (10), Samsung One UI

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

Battery

Capacity:

4000 mAh

3000 mAh

Type:

Li - Polymer, Not user replaceable

Li - Ion, Not user replaceable

Charging:

Fast charging

Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging

Max charge speed:

Wired: 15.0W

Camera

Rear:

Quad camera

Single camera

Main camera:

16 MP (PDAF)

12 MP (OIS, PDAF)

Specifications:

F1.8; 1/3.06"; 1 μm

F1.7; 26 mm; 1/2.55"; 1.4 μm

Second camera:

8 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera:

2 MP (Macro)

Specifications:

Aperture size: F2.4

Fourth camera:

2 MP (Depth information)

Specifications:

Aperture size: F2.4

Flash:

LED

Video recording:

1920x1080 (Full HD) (30 fps)

3840x2160 (4K UHD) (30 fps), 2560x1440 (QHD), 1920x1080 (Full HD) (60 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

Front:

13 MP

8 MP (Wide Angle, Autofocus, HDR)

Video capture:

1920x1080 (Full HD)

2560x1440 (QHD)

Design

Dimensions:

6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)

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

Weight:

6.81 oz (193.0 g)

5.47 oz (155.0 g)

Materials:

Back: Plastic; Frame: Plastic

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

Resistance:

Water, Dust; IP68

Biometrics:

Fingerprint (touch)

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

Keys:

Right: Volume control, Lock/Unlock key

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

Colors:

Black

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

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), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 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), 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)