Oppo Find N3 vs Realme C21

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900
3G network

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x

HSDPA 850, 900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 66

LTE frequency band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41
5G network

5G band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78, 79 SA/NSA

-
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

11.52 Mbps

5.76 Mbps
LTE speed

LTE-A (CA)

LTE, Cat4, 150 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Ceramic Guard) (folded), plastic front (unfolded), glass back or eco leather back, aluminum frame

Glass front, plastic back, plastic frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

153.4 mm

165.2 mm
Width

73.3 mm

76.4 mm
Thickness

11.7 mm

8.9 mm
Height unfolded

153.4 mm

-
Width unfolded

143.1 mm

-
Thickness unfolded

5.8 mm

-
Weight

239/245 g

190 g
Waterproof

IPX4

-
Dust proof

IPX4

-
Colors

Black, Gold, Green, Rose

Black, Blue

Display
Display type

Foldable LTPO3 OLED

IPS LCD
Physical size

7.82 inches

6.5 inches
Resolution

2268 x 2440 pixels

720 x 1600 pixels
Pixel density

426 ppi

270 ppi
Display colors

1073741824

16777216
Protection

-

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3
Display features

Dolby Vision, 120Hz, 2800 nits (peak)

-
Cover display

LTPO3 OLED

-
Cover display physical size

6.31 inches

-
Cover display resolution

1116 x 2484 pixels

-

OS
OS

Android 13, ColorOS 13.2

Android 10, Realme UI 1.0 / Android 11, Realme UI 2.0

Main camera
Camera type

Triple

Triple
Main camera

(wide) , 48 MP, f/1.7 , 24 mm, 1/1.43" , 1.12 µm

(wide) , 13 MP, f/2.2 , 26 mm, 1/3.06" , 1.12 µm
(telephoto) , 64 MP, f/2.6 , 70 mm, 1/2" , 0.7 µm, 3x optical zoom

(macro) , 2 MP, f/2.4
114˚ , (ultrawide) , 48 MP, f/2.2 , 14 mm, 1/2" , 0.8 µm

(depth) , 2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

2560 x 1920 pixels
Primary camera video

4K@30/60fps, 1080p@30/60/240fps gyro-EIS, HDR10+, Dolby Vision

1080p@30fps
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, face unlock, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, Hasselblad pro mode, Hasselblad XPAN mode

Autofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(ultrawide) , 20 MP, f/2.2 , 20 mm, 1/4" , 0.7 µm

(wide) , 5 MP, f/2.2 , 1/5.0" , 1.12 µm
Selfie camera resolution

6528 x 4896 pixels

2560 x 1920 pixels
Selfie camera features

Digital image stabilization, HDR, face unlock, face detection

Face unlock, HDR, panorama
Selfie camera video

4K@30fps, 1080p@30fps, gyro-EIS

1080p@30fps
Selfie cover camera

32 MP f/2.4 22 mm 1/4" 0.7 µm

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax, 802.11be

Wi-Fi 802.11b, 802.11g, 802.11n
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

-
WiFi Tri-Band

Yes

-
USB

Type-C 2.0

microUSB 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.3

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
NFC

Yes

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
BDS

Yes

Yes
QZSS

Yes

-