Cat S31 vs Xiaomi Mi CC9 Pro

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
3G network

HSDPA 850, 900, 1900, 2100 - EU; HSDPA 850, 900, 1700(AWS), 1900, 2100 - USA

HSDPA 850, 900, 1900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800) - EU; LTE frequency band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 12(700), 17(700) - USA

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE, Cat4, 150 Mbps download, 50 Mbps upload

LTE-A (3CA) Cat 15, 800 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Aluminium alloy, glass
SIM

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

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

146 mm

157.8 mm
Width

74.4 mm

74.2 mm
Thickness

12.6 mm

9.7 mm
Weight

200 g

208 g
Waterproof

IP68, 1.2 m and 35 minutes

-
Dust proof

IP68

-
MIL-STD-810G

Yes - dust, humidity, rain, salt, vibration, solar radiation, transport and thermal shock resistant

-
Colors

Black

Black, Green, White

Display
Display type

TFT capacitive touchscreen

AMOLED capacitive touchscreen
Physical size

4.7 inches

6.47 inches
Resolution

720 x 1280 pixels

1080 x 2340 pixels
Pixel density

312 ppi

398 ppi
Display colors

-

16777216
Protection

Corning Gorilla Glass 3

Scratch resistant, 3D curved glass screen, Corning Gorilla Glass 5
Multitouch

Yes

Yes
Display features

-

HDR10, Always-on display, DCI-P3, 600 nits max brightness

Main camera
Camera type

-

Penta
Main camera

8 MP

108 MP, f/1.7 , 25 mm, 1/1.33" , 0.8 µm
12 MP, f/2.0 , 50 mm, 1/2.55" , 1.4 µm, 2x optical zoom
5 MP, f/2.0 , 1.0 µm, 5x optical zoom
20 MP, f/2.2 , 13 mm, 1/2.8" , 1.0 µm
2 MP, f/2.4 , 1/5" , 1.75 µm
Primary camera resolution

-

12032 x 9024 pixels
Primary camera video

720p@30fps

2160p@30fps, 1080p@30/60/120/240fps, 720p@960fps
Primary camera Autofocus

autofocus

-
Primary camera flash

LED flash

quad-LED flash
Camera features

Geo-tagging, face detection, touch focus

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, self-timer, scene-mode, macro mode, phase detection
DxOMark photo

-

130
DxOMark video

-

102
DxOMark camera score

-

121

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
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v4.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth HID

-

Yes
bluetooth LE

Yes

Yes
Bluetooth EDR

-

Yes
Bluetooth AptX

-

aptX HD
Infrared

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

Yes

Yes
GALILEO

-

Yes
Beidou

-

Yes
BDS

Yes

-

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Email

Push Email

-
Java

No

-
Sensors

Accelerometer, compass, proximity

Accelerometer, compass, fingerprint, gyroscope, light, proximity, in-display fingerprint sensor