Realme C51 vs vivo X Fold+

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900
3G network

HSDPA 850, 900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
4G network

LTE frequency band 1, 3, 5, 8, 38, 40, 41 - Africa, India; 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 - Asia

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 32, 66
5G network

-

5G band 1, 2, 3, 5, 7, 8, 12, 20, 28, 66, 38, 40, 41, 77, 78, 79 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A, 150 Mbps download, 51 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front, plastic frame, plastic back

Aluminium alloy, glass, faux leather
SIM

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

Nano-SIM
Height

167.2 mm

162 mm
Width

76.7 mm

74.5 mm
Thickness

8 mm

14.6 mm
Height unfolded

-

162 mm
Width unfolded

-

144.9 mm
Thickness unfolded

-

6.3 mm
Weight

186 g

311 g
Colors

Black, Green

Black, Blue, Red

Main camera
Camera type

Dual

Quad
Main camera

(wide) , 50 MP, f/1.8 , 27 mm, 1/2.76" , 0.64 µm

(wide) , 50 MP, f/1.8 , 1/1.57" , 1.0 µm
(depth) , 0.08 MP, f/3.0

(periscope telephoto) , 8 MP, f/3.4 , 125 mm, 5x optical zoom
(telephoto) , 12 MP, f/2.0 , 47 mm, 2x optical zoom
(ultrawide) , 48 MP, f/2.2 , 114˚ , 14 mm
Primary camera resolution

8120 x 6180 pixels

8192 x 6144 pixels
Primary camera video

1080p@30fps

8K@30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS
Primary camera optics

-

Zeiss optics
Primary camera flash

LED flash

dual-LED flash
Camera features

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

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, phase detection autofocus, laser autofocus

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 5 MP, f/1.8 , 28 mm, 1/5" , 1.12 µm

(wide) , 16 MP, f/2.5
Selfie camera resolution

3264 x 2448 pixels

4608 x 3456 pixels
Selfie camera features

Face unlock, face detection

Digital image stabilization, face detection, face unlock, HDR
Selfie camera video

720p@30fps

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
WLAN WiFi Hotspot

-

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 3.2
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

-

Yes
QZSS

-

Yes
NavIC

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, proximity

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5000 mAh

4730 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

SuperVOOC, 33W (50% in 28 min)

Yes, 80W (100% in 35 min)
Wireless reverse charging

-

Yes, 10W
Fast wireless charging

-

Yes, 50W
Talk time 3G

-

22.6 h