BLU G51 vs Nokia X20

BLU G51

Nokia X20

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, 1700(AWS), 1900, 2100
4G network

LTE frequency band 2, 3, 4, 5, 7, 12, 17, 28, 66

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 20, 28, 66, 38, 39, 40, 41
5G network

-

5G band 1, 2, 3, 5, 7, 28, 38, 41, 66, 78 SA/NSA/Sub6
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

-

LTE, Cat4, 150 Mbps download, 50 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Plastic
SIM

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

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

155.3 mm

168.9 mm
Width

73.5 mm

79.7 mm
Thickness

9.5 mm

9.1 mm
Weight

166 g

220 g
Waterproof

-

IPX2
Dust proof

-

IPX2
Colors

Black, Blue, Gold, Green, Silver

Blue, Sun

Main camera
Camera type

Dual

Quad
Main camera

8 MP

64 MP, (wide) , f/1.8 , 1/1.97" , 0.7 µm
(depth) , 0.3 MP

(ultrawide) , 5 MP, 1/5" , 1.12 µm
(macro) , 2 MP
(depth) , 2 MP
Primary camera resolution

-

9280 x 6920 pixels
Primary camera video

1080p@30fps

4K@30fps, 1080p@30fps
Primary camera optics

-

Zeiss optics
Primary camera flash

LED flash

LED flash
Camera features

HDR, Panorama

Autofocus, geotagging, panorama, HDR, touch focus, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Connectivity
WLAN

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

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

Yes

Yes
WLAN WiFi Direct

Yes

Wi-Fi direct
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

No

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes