Samsung Galaxy S8 Active vs Samsung Galaxy A51

$404.61 VIEW ON AMAZON $303.99 VIEW ON eBay

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
Super AMOLED

Screen-to-body

74.89 %
87.37 %

Features

HDR video 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 & Performance

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
4GB

Internal storage

64GB
128GB

Storage expansion

microSDXC up to 256 GB
microSDXC up to 512 GB

OS

Android (9.0 Pie, 8.0 Oreo, 7.0 Nougat), Samsung One UI
Android (10), Samsung One UI

Battery

Capacity

4000 mAh
4000 mAh

Type

Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable

Charging

Qualcomm Quick Charge 2.0, Qi and Powermat wireless charging
Fast charging

Camera

Rear

Single camera
Quad camera

Main camera

12 MP
48 MP

Features

OIS, PDAF
PDAF

Second camera

 
12 MP

Features

 
Ultra-wide

Third camera

 
5 MP

Features

 
Macro

Fourth camera

 
5 MP

Features

 
Depth information

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
32 MP

Features

Wide Angle, Autofocus, HDR
HDR

Design

Dimensions

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

7.34 oz (208 g)
the average is 6.3 oz (179 g)
6.07 oz (172 g)
the average is 6.3 oz (179 g)

Materials

 
Back: Plastic; Frame: Plastic

Resistance

Water, Dust, Shock, Vibration, Temperature; IP 68; MIL-STD-810 certified
 

Biometrics

Iris scanner, 2D Face unlock, Fingerprint (touch)
2D Face unlock, In-screen fingerprint

Colors

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), 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), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)

LTE (TDD)

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 1700/2100, 1900, 2100 MHz

Data Speed

LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, UMTS
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

Dual SIM

 
Yes

SIM type

Nano SIM
Nano SIM

HD Voice

Yes
 

Multimedia

Headphones

3.5mm jack
3.5mm jack

Features

Album art cover, Background playback
Dolby Atmos

Connectivity & Features

Bluetooth

5.1, EDR
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band, i; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB

Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0

Features

Mass storage device, Charging
Charging, OTG

Sensors

Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other

NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync
NFC, ANT+

Shopping information

MSRP

$ 850
 
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