Xiaomi Redmi K40 Gaming vs vivo S18

Xiaomi Redmi K40 Gaming

vivo S18

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

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

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

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

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

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

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

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

11.52 Mbps
EV-DO speed

-

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE-A

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

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

Glass front, plastic frame
SIM

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

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

161.9 mm

164.4 mm
Width

76.9 mm

75.1 mm
Thickness

8.3 mm

7.5 mm
Weight

205 g

185.8 g
Waterproof

IP53

IP54
Dust proof

IP53

IP54
Build features

Physical pop-up gaming triggers

-
Colors

Black, Gray, Silver, Yellow

Black, Blue/Green, Silver

Display
Display type

OLED

AMOLED
Physical size

6.67 inches

6.78 inches
Resolution

1080 x 2400 pixels

1260 x 2800 pixels
Pixel density

395 ppi

453 ppi
Display colors

1073741824

1073741824
Protection

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

Scratch resistant, 3D curved glass screen
Display features

120Hz, HDR10+, 500 nits (typ)

120Hz, 2800 nits (peak)

Main camera
Camera type

Triple

Dual
Main camera

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

(wide) , 50 MP, f/1.9 , 1/1.55" , 1.0 µm
(ultrawide) , 8 MP, f/2.2 , 120˚

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

9280 x 6920 pixels

8120 x 6180 pixels
Primary camera video

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

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

dual-LED flash

Ring-LED 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, self-timer, scene-mode, phase detection autofocus

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, macro-mode, phase detection autofocus

Selfie camera
Selfie camera type

Single

Single
Selfie camera

16 MP

50 MP, (wide) , f/2.0 , 22 mm
Selfie camera resolution

4608 x 3456 pixels

8192 x 6144 pixels
Selfie camera features

Face unlock, HDR

Face unlock, HDR, face detection, autofocus
Selfie camera video

1080p@30fps, 720p@120fps

1080p@30fps

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 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.2

v5.4
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD, aptX Adaptive, aptX Lossless
Infrared

Yes

-
NFC

Yes

Yes
GPS

Yes, with dual-band A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

Yes

-

Features
Sensors

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

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