Fairphone 4 vs 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, 8, 12, 18, 19, 20, 28, 32, 38, 40, 41, 71

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, 3, 5, 7, 8, 20, 28, 38, 41, 71, 77, 78 SA/NSA/Sub6

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-A (4CA), Cat18, 1200 Mbps download, 150 Mbps upload

LTE-A, 750 Mbps download, 211 Mbps upload
5G speed

2.3 Gbps download

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 5), plastic back, plastic frame

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 mm

168 mm
Width

75.5 mm

78.6 mm
Thickness

10.5 mm

10.6 mm
Weight

225 g

231 g
Waterproof

IP54

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

IP54

IP68/IP69K
MIL-STD-810G

Yes

-
MIL-STD-810H

-

Yes
Colors

Gray, Green, Speckled Green

Black, Green

Display
Display type

IPS LCD

IPS LCD
Physical size

6.3 inches

6.49 inches
Resolution

1080 x 2340 pixels

1080 x 2400 pixels
Pixel density

409 ppi

406 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, Corning Gorilla Glass 5

2D curved glass screen, Corning Gorilla Glass Victus

Main camera
Camera type

Triple

Dual
Main camera

(wide) , 48 MP, f/1.6 , 1/2.0" , 0.8 µm, 8x digital zoom

(wide) , 64 MP, f/1.8 , 1/2"
(ultrawide) , 48 MP, f/2.2 , 120˚ , 1/2.0" , 0.8 µm

(ultrawide) , 8 MP, f/2.2 , 1/4.0" , 1.12 µm
TOF 3D
Primary camera resolution

8000 x 6000 pixels

9280 x 6920 pixels
Primary camera video

4K@30fps, 1080p@30/60fps, gyro-EIS

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

dual-LED dual-tone flash

dual-LED dual-tone flash
Camera features

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

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

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 25 MP, f/2.2 , 1/2.78" , 0.9 µm

(wide) , 16 MP, f/2.4
Selfie camera resolution

-

4608 x 3456 pixels
Selfie camera features

Digital image stabilization, face detection, face unlock, HDR

Face unlock, HDR
Selfie camera video

1080p@30fps, gyro-EIS

1080p@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, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 3.0, DisplayPort

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.1

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, gyroscope, proximity

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Ion

Li-Po
Battery capacity

3905 mAh

4800 mAh
Battery removable

Removable

Non-removable
Fast battery charging

Quick Charge, 20W (50% in 30 min)

USB Power Delivery 2.0, 33W
Talk time 3G

30 h

-
Talk time 4G

13 h

-
Standby time 4G

200 h

-