Cat S53 vs Xiaomi Redmi K40 Gaming

Cat S53

Xiaomi Redmi K40 Gaming

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66

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

5G band 1, 41, 77, 78, 79 SA/NSA

5G band 1, 3, 28, 41, 77, 78 SA/NSA/Sub6
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE, 600 Mbps download, 150 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium alloy, TPU, polycarbonate

Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5)
SIM

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

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

171 mm

161.9 mm
Width

81 mm

76.9 mm
Thickness

16 mm

8.3 mm
Weight

320 g

205 g
Waterproof

IP68/IP69 (1.5m and 35 minutes)

IP53
Dust proof

IP68/IP69

IP53
Resistance drop

1.8m

-
MIL-STD-810H

Yes

-
Flashlight

Yes

-
Build features

-

Physical pop-up gaming triggers
Colors

Black

Black, Gray, Silver, Yellow

Display
Display type

IPS LCD

OLED
Physical size

6.5 inches

6.67 inches
Resolution

720 x 1600 pixels

1080 x 2400 pixels
Pixel density

270 ppi

395 ppi
Display colors

-

1073741824
Protection

Scratch resistant

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5
Display features

-

120Hz, HDR10+, 500 nits (typ)

Main camera
Camera type

Dual

Triple
Main camera

(wide) , 48 MP, f/1.8 , 1/2.0" , 0.8 µm

(wide) , 64 MP, f/1.7 , 1/2" , 0.7 µm, 26 mm
(macro) , 2 MP, 1.75 µm

(ultrawide) , 8 MP, f/2.2 , 120˚
(macro) , 2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

9280 x 6920 pixels
Primary camera video

1080p@30fps

4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR
Primary camera flash

LED flash

dual-LED flash
Camera features

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

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, phase detection autofocus

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

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v5.2
Bluetooth A2DP

A2DP

Yes
bluetooth LE

LE

Yes
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes
QZSS

-

Yes
NavIC

-

Yes