Samsung Galaxy M51 8GB/128GB

OPPO F21s Pro 8GB/128GB

os

Android 10, One UI 2.1

Android 12 ColorOS 12.1

RAM

8 GB

8 GB

ROM

128 GB

128 GB

expandable

512 GB

256 GB

CPU

Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)

Octa core (2.4 GHz, Quad core, Kryo 265 + 1.9 GHz, Quad core, Kryo 265)

GPU

Adreno 618

Adreno 610 @ 1100MHz

SoC

Qualcomm SDM730 Snapdragon 730G (8 nm)

Qualcomm Snapdragon 680

number of cores

8core

8core

features

LED flash, panorama, HDR

Night, PRO, PANO, Portrait, Extra HD, SLO-MO

primary

Quad:
64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8m, PDAF
12 MP, f/2.2, 123 (ultrawide),
5 MP, f/2.4, (macro),
5 MP, f/2.4, (depth)

Triple:
64MP, f/1.7; 79 FOV; 6P lens; AF; open-loop focus motor used
2MP, f/3.3; 65 FOV; 3P+IR lens; FF
2MP, f/2.4; 89 FOV; 3P+IR lens; FF

secondary

32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8m

32MP; f/2.4; 85 FOV; 5P lens; no focus motor used

video

1080p@30fps

1080p at 30 fps (default, with Retouch off) or 720p at 30 fps

capacity

7000mAh

4500mAh

charging

Fast charging 25W

Fast Charging 33W SUPERVOOCTM

type

Li-Po, non-removable

Li-Polymer (non-removable)

dimension

163.9 x 76.3 x 9.5 mm

159.9 x 73.2 x 7.7 mm

display

Super AMOLED Plus, 108.4 cm2 (~86.7% screen-to-body ratio)

AMOLED FHD+ (2400 x 1080)

resolution

1080 x 2400 pixels, 20:9 ratio (~393 ppi density)

screen

6.7"

6.43"

weight

213 gm

182 gm

GPS

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

USB

USB Type-C 2.0

USB Type-C

bluetooth

5.0, A2DP, LE

Bluetooth v5.1, AAC, SBC, aptX, aptX HD, LDAC

internet

2G/3G/4G

4G/LTE

wifi

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

Wi-Fi 2.4GHz/Wi-Fi 5.1GHz/Wi-Fi 5.8GHz;

radio

FM radio

Unspecified

sensors

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

Fingerprint (under display, optical), Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope