Samsung Galaxy A21s 4GB/64GB

OPPO A53 6GB/128GB

os

Android 10, One UI 2.0

Android 10, ColorOS 7.2

RAM

4 GB

6 GB

ROM

64 GB

128 GB

expandable

512 GB

512 GB

CPU

Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55)

Octa-core (4x1.8 GHz Kryo 240 & 4x1.6 GHz Kryo 240)

GPU

Mali-G52

Adreno 610

SoC

Exynos 850 (8nm)

Qualcomm SM4250 Snapdragon 460 (11 nm)

number of cores

8core

8core

features

LED flash, panorama, HDR

LED flash, HDR, panorama

primary

Quad:
48 MP, f/2.0, 26mm (wide), 1/2.0", 0.8m, PDAF
8 MP, f/2.2, 123 (ultrawide), 1/4.0", 1.12m
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)

Triple:
13 MP, f/2.2, 25mm (wide), 1/3.06", 1.12m, PDAF
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth)

secondary

13 MP, f/2.2, (wide), 1/3.1", 1.12m

16 MP, f/2.0, (wide), 1/3.06", 1.0m

video

1080p@30fps

1080p@30fps

capacity

5000mAh

5000mAh

charging

Fast charging 15W

Fast charging 18W

type

Li-Polymer (non-removable)

Li-Polymer (non-removable)

dimension

163.7 x 75.3 x 8.9 mm

163.9 x 75.1 x 8.4 mm

display

PLS TFT capacitive touchscreen, 16M colors

IPS LCD, 90Hz

resolution

720 x 1600 pixels, 20:9 ratio (~270 ppi density)

screen

6.5"

6.5"

weight

192 gm

186 gm

GPS

Yes, with A-GPS, GLONASS, GALILEO, BDS

Yes, with A-GPS, GLONASS, GALILEO, BDS

NFC

Yes (market/region dependent)

USB

2.0, Type-C 1.0 reversible connector

USB Type-C 2.0, USB On-The-Go

bluetooth

5.0, A2DP, LE

5.0, A2DP, LE, aptX HD

internet

2G/3G/4G/LTE

2G/3G/4G

wifi

Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot

Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot

radio

FM Radio

FM Radio

sensors

Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass

Fingerprint (rear-mounted), accelerometer, proximity, compass