Doogee S51 vs Nokia XR21

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 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, 8, 12, 13, 17, 18, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66

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

-

45.4 Mbps
HSUPA speed

-

5.76 Mbps
EV-DO speed

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

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

LTE, Cat7, 301 Mbps download, 102 Mbps upload

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

Yes

Yes
EDGE

Yes

Yes

Design
Build

Metal, rubber, polycarbonate

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

167.4 mm

168 mm
Width

81.4 mm

78.6 mm
Thickness

14.6 mm

10.6 mm
Weight

266 g

231 g
Waterproof

IP68/IP69K

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

IP68/IP69K

IP68/IP69K
MIL-STD-810H

Yes

Yes
Colors

Black, Green, Orange

Black, Green

Display
Display type

IPS LCD

IPS LCD
Physical size

6.0 inches

6.49 inches
Resolution

720 x 1440 pixels

1080 x 2400 pixels
Pixel density

268 ppi

406 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, Corning Gorilla Glass

2D curved glass screen, Corning Gorilla Glass Victus

Main camera
Camera type

Dual

Dual
Main camera

(wide) , 20 MP, f/1.8 , 90˚ , 1/2.9" , 1.25 µm

(wide) , 64 MP, f/1.8 , 1/2"
(depth) , 2 MP, f/2.4 , 1/5" , 1.75 µm

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

5184 x 3840 pixels

9280 x 6920 pixels
Primary camera video

1080p

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

quad-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, macro-mode, phase detection autofocus

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

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

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

Yes
Bluetooth

v5.0

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX Adaptive
NFC

Yes

Yes (market dependent)
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

-

Yes
NavIC

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, geomagnetic, gyroscope, light, proximity

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity