BLU G51S vs Nokia XR21

BLU G51S

Nokia XR21

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 1, 2, 3, 4, 5, 7, 12, 17, 28

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 43, 48, 66, 71
5G network

-

5G band 1, 2, 3, 5, 7, 20, 25, 28, 40, 41, 66, 71, 77, 78, 79 SA/NSA
HSDPA speed

42.2 Mbps

45.4 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE, 301 Mbps download, 102 Mbps upload

LTE-A, 750 Mbps download, 211 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

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

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

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

162.4 mm

168 mm
Width

77.5 mm

78.6 mm
Thickness

9 mm

10.6 mm
Weight

185 g

231 g
Waterproof

-

IP68/IP69K (1.5m and 60 mins)
Dust proof

-

IP68/IP69K
MIL-STD-810H

-

Yes
Colors

Blue, Bronze, Green, Red

Black, Green

Display
Display type

IPS LCD

IPS LCD
Physical size

6.4 inches

6.49 inches
Resolution

720 x 1560 pixels

1080 x 2400 pixels
Pixel density

268 ppi

406 ppi
Display colors

16777216

16777216
Protection

2.5D curved glass screen

2D curved glass screen, Corning Gorilla Glass Victus

Main camera
Camera type

Dual

Dual
Main camera

13 MP

64 MP, (wide) , f/1.8 , 1/2"
0.3 MP

8 MP, (ultrawide) , f/2.2 , 1/4.0" , 1.12 µm
Primary camera resolution

4160 x 3120 pixels

9280 x 6920 pixels
Primary camera video

1080p@30fps

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

LED flash

dual-LED dual-tone flash
Camera features

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

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

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

Type-C 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.2

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX Adaptive
NFC

No

Yes (market dependent)
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes
QZSS

-

Yes
NavIC

-

Yes