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Model

Compare BLU G51 and Realme C21

BLU G51 vs Realme C21

BLU G51

Realme C21

BLU G51

Realme C21

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 2, 3, 4, 5, 7, 12, 17, 28, 66

LTE frequency band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

-

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

Yes

Yes
EDGE

Yes

Yes

Availability
Oficially announced

2022-06

2021-03
Status

2022-06

2021-03

Design
Build

-

Glass front, plastic back, plastic frame
SIM

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

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

155.3 mm

165.2 mm
Width

73.5 mm

76.4 mm
Thickness

9.5 mm

8.9 mm
Weight

166 g

190 g
Colors

Black, Blue, Gold, Green, Silver

Black, Blue

Display
Display type

IPS LCD

IPS LCD
Physical size

6.1 inches

6.5 inches
Resolution

720 x 1520 pixels

720 x 1600 pixels
Pixel density

276 ppi

270 ppi
Display colors

16777216

16777216
Protection

-

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

Hardware
CPU

-

Octa-core
CPU

Quad-core 2.0 GHz Cortex-A53

Quad-core 2.3 GHz Cortex-A53
CPU(second)

quad-core 1.8 GHz Cortex-A53
Chipset

Mediatek MT6761 Helio A22

MediaTek Helio G35
GPU

PowerVR GE8320

PowerVR GE8320
Memory RAM

2 GB

3, 4 GB
Internal storage

32 GB

32, 64 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

128 GB

256 GB
Storage

-

eMMC 5.1

OS
OS

Android 11 Go Edition

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

Main camera
Camera type

Dual

Triple
Main camera

8 MP

13 MP, (wide) , f/2.2 , 26 mm, 1/3.06" , 1.12 µm
(depth) , 0.3 MP

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

-

2560 x 1920 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera flash

LED flash

LED flash
Camera features

HDR, Panorama

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
Selfie camera

8 MP

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

-

2560 x 1920 pixels
Selfie camera features

-

Face unlock, HDR, panorama
Selfie camera video

720p@30fps

1080p@30fps

Sound
3.5mm jack

Yes

Yes
Loudspeaker

Yes

Yes
Earpiece

Yes

Yes

Multimedia
Radio

FM Radio

FM Radio

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

-
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

No

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
BDS

-

Yes

Features
Sensors

Accelerometer, fingerprint, proximity

Accelerometer, compass, fingerprint, proximity

Browser
HTML

HTML5

HTML5

Battery
Battery type

Li-Po

Li-Po
Battery capacity

3000 mAh

5000 mAh
Battery removable

-

Non-removable
Fast battery charging

-

Yes
Reverse charging

-

Yes

Tests and performance
Antutu

-

110490 (v8)
Geekbench(single-core)

543 (v5.2)

174 (v5.2)
Geekbench(multi-core)

1675 (v5.2)

982 (v5.2)

Cost
Price

-

130 USD

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