Nokia XR21 vs Xiaomi Mi Mix Fold

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42
5G network

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

5G band 1, 3, 28, 41, 77, 78, 79 SA/NSA
HSDPA speed

45.4 Mbps

42.2 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, 750 Mbps download, 211 Mbps upload

LTE-A (CA)
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

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

Glass front (folded), plastic front (unfolded), glass back (Gorilla Glass 5) or ceramic back, aluminum frame
SIM

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

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

168 mm

173.3 mm
Width

78.6 mm

69.8 mm
Thickness

10.6 mm

9 mm
Height unfolded

-

173.3 mm
Width unfolded

-

133.4 mm
Thickness unfolded

-

17.2 mm
Weight

231 g

317 (glass) / 332 (ceramic) g
Waterproof

IP68/IP69K (1.5m and 60 mins)

-
Dust proof

IP68/IP69K

-
MIL-STD-810H

Yes

-
Colors

Black, Green

Black, Ceramic

Display
Display type

IPS LCD

Foldable AMOLED
Physical size

6.49 inches

8.01 inches
Resolution

1080 x 2400 pixels

1860 x 2480 pixels
Pixel density

406 ppi

387 ppi
Display colors

16777216

1073741824
Protection

2D curved glass screen, Corning Gorilla Glass Victus

Scratch resistant
Display features

-

HDR10+, Dolby Vision, 600 nits (typ), 900 nits (peak)
Cover display

-

AMOLED
Cover display physical size

-

6.52 inches
Cover display resolution

-

840 x 2520 pixels
Cover display features

-

90Hz, HDR10+, Dolby Vision, 650 nits (typ), 900 nits (peak)

Main camera
Camera type

Dual

Triple
Main camera

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

(wide) , 108 MP, f/1.8 , 1/1.52" , 80 mm, 0.7 µm
(ultrawide) , 8 MP, f/2.2 , 1/4.0" , 1.12 µm

(telephoto/macro) , 8 MP, 3x optical zoom
123 , (ultrawide) , 13 MP, f/2.4 , 1.12 µm
Primary camera resolution

9280 x 6920 pixels

-
Primary camera video

4K@30fps, 1080p@30fps

8K@24/30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS
Primary camera flash

dual-LED dual-tone flash

dual LED flash
Camera features

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

Autofocus, continuous autofocus, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, face unlock, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, laser autofocus, stagger HDR, AI 2.0, night mode 2.0

Selfie camera
Selfie camera type

Single

Single
Selfie camera

(wide) , 16 MP, f/2.4

(wide) , 20 MP, f/2.4 , 80˚ , 27 mm, 1/3.4" , 0.8 µm
Selfie camera resolution

4608 x 3456 pixels

5184 x 3880 pixels
Selfie camera features

Face unlock, HDR

Face unlock, HDR, panorama
Selfie camera video

1080p@30fps

1080p@30/60fps, 720p@120fps

Connectivity
WLAN

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

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 2.0

Type-C
USB On-The-Go

Yes

-
Bluetooth

v5.1

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX Adaptive

-
Infrared

-

Yes
NFC

Yes (market dependent)

Yes
GPS

Yes, with dual-band A-GPS

Yes, with dual-band A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

Yes

Yes

Features
Sensors

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity

Accelerometer, barometer, compass, color spectrum, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

4800 mAh

5020 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

USB Power Delivery 2.0, 33W

Quick Charge 4+ (100% in 37 min)