Cat S75 vs Realme C51

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 20, 28, 32, 38, 39, 40, 41

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

5G band 1, 2, 3, 5, 7, 8, 20, 23, 28, 38, 40, 41, 75, 77, 78, 255, 256 SA/NSA/Sub6/mmWave

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HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE

LTE-A, 150 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass Victus), plastic back, aluminum frame

Glass front, plastic frame, plastic back
SIM

Single SIM (Nano-SIM) or Hybrid SIM (Nano-SIM, dual stand-by)

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

171 mm

167.2 mm
Width

80 mm

76.7 mm
Thickness

11.9 mm

8 mm
Weight

268 g

186 g
Waterproof

IP68/IP69 (5m for 35 min)

-
Dust proof

IP68/IP69

-
Resistance drop

1.8m

-
MIL-STD-810H

Yes

-
Colors

Black

Black, Green

Display
Display type

IPS LCD

IPS LCD
Physical size

6.6 inches

6.74 inches
Resolution

1080 x 2408 pixels

720 x 1600 pixels
Pixel density

400 ppi

260 ppi
Display colors

-

16777216
Protection

Corning Gorilla Glass Victus

Scratch resistant, 2.5D curved glass screen
Display features

120Hz

90Hz, 560 nits (peak)

Main camera
Camera type

Triple

Dual
Main camera

(wide) , 50 MP, f/1.8

(wide) , 50 MP, f/1.8 , 27 mm, 1/2.76" , 0.64 µm
(ultrawide) , 8 MP, f/2.2

(depth) , 0.08 MP, f/3.0
(macro) , 2 MP, f/2.4
Primary camera resolution

8190 x 6120 pixels

8120 x 6180 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera flash

Dual-LED flash

LED flash
Camera features

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

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

(wide) , 8 MP, f/2.0

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

3264 x 2448 pixels

3264 x 2448 pixels
Selfie camera features

Face unlock, face detection

Face unlock, face detection
Selfie camera video

1080p@30fps

720p@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
WLAN WiFi Hotspot

Yes

-
WLAN WiFi Direct

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

Yes

-
Bluetooth

v5.1

v5.0
Bluetooth A2DP

A2DP

Yes
bluetooth LE

LE

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

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