Sony Xperia 1 IV vs Xiaomi Redmi 9

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 800, 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, 19, 20, 25, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 66 - Europe; 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 19, 20, 25, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 48, 66, 71 - USA; 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 19, 20, 25, 26, 28, 29, 34, 38, 39, 40, 41, 46, 66 - Asia

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

5G band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA/Sub6 - Europe; 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 71, 77, 78, 260, 261 SA/NSA/Sub6/mmWave - USA; 1, 3, 5, 7, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA/Sub6 - Asia

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HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass Victus), glass back (Gorilla Glass Victus), aluminum frame

Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM

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

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

165 mm

163.3 mm
Width

71 mm

77 mm
Thickness

8.2 mm

9.1 mm
Weight

185 g

198 g
Waterproof

IP65/IP68 (1.5m and 30 mins)

-
Dust proof

IP65/IP68

-
Colors

Black, Violet, White

Blue/Pink, Gray, Green, Purple

Display
Display type

OLED

IPS LCD capacitive touchscreen
Physical size

6.5 inches

6.53 inches
Resolution

1644 x 3840 pixels

1080 x 2340 pixels
Pixel density

643 ppi

395 ppi
Display colors

1073741824

16777216
Protection

Corning Gorilla Glass Victus

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3
Display features

120Hz, HDR BT.2020

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Main camera
Camera type

Quad

Quad
Main camera

(wide) , 12 MP, f/1.7 , 24 mm, 1/1.7" , 1.8 µm

13 MP, f/2.2 , 28 mm, 1/3.1" , 1.12 µm
(telephoto) , 12 MP, f/2.3, f/2.8 , 85/125 mm, 1/3.5" , 3.5x-5.2 optical zoom

8 MP, f/2.2 , 1/4.0" , 1.12 µm
124˚ , (ultrawide) , 12 MP, f/2.2 , 16 mm, 1/2.5"

5 MP, f/2.4
TOF 3D

2 MP, f/2.4
Primary camera resolution

4032 x 3024 pixels

4160 x 3120 pixels
Primary camera video

4K@24/25/30/60/120fps HDR, 1080p@30/60/120/240fps; 5-axis gyro-EIS, OIS

1080p@30fps
Primary camera optics

Zeiss optics, Zeiss T* lens coating

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Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, Real-time eye AF, Real-time object tracking, cinematography pro, 5-axis stabilization, videography pro, live streaming

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

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, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

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USB

Type-C 3.2

Type-C 1.0 reversible connector
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD, aptX Adaptive

-
Infrared

-

Yes
NFC

Yes

-
GPS

Yes, with dual-band A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
Beidou

-

Yes
BDS

Yes

-
QZSS

Yes

-

Features
Sensors

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

Accelerometer, compass, fingerprint, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5000 mAh

5020 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Yes, 30W (50% in 30 min), USB Power Delivery

Qualcomm Quick Charge 3.0
Wireless reverse charging

Yes

-
Fast wireless charging

Yes

-
DxOMark autonomy

-

55
DxOMark charging

-

51
DxOMark efficiency

-

55
DxOMark battery score

-

54