Xiaomi Redmi K40S vs vivo Y27s

Xiaomi Redmi K40S

vivo Y27s

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

GSM 850, 900, 1800, 1900
3G network

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

HSDPA 850, 900, 2100
4G network

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

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

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

5.76 Mbps
LTE speed

LTE-A

LTE, 391 Mbps download, 151 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 5), plastic back

Glass front, plastic frame, plastic back
SIM

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

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

163.2 mm

164.1 mm
Width

76 mm

76.2 mm
Thickness

7.7 mm

8.2 mm
Weight

195 g

192 g
Waterproof

-

IP54
Splash resistant

Yes

-
Dust proof

-

IP54
Colors

Black, Blue, Gray, Green

Black, Green

Display
Display type

AMOLED

IPS LCD
Physical size

6.67 inches

6.64 inches
Resolution

1080 x 2400 pixels

1080 x 2388 pixels
Pixel density

395 ppi

395 ppi
Display colors

16777216

16777216
Protection

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

-
Display features

120Hz, HDR10+, 1300 nits (peak)

-

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 3.2 GHz Kryo 585

Quad-core 2.4 GHz Kryo 265 Gold
CPU(second)

Triple-core 2.42 GHz Kryo 585

quad-core 1.9 GHz Kryo 265 Silver
CPU(third)

Quad-core 1.80 GHz Kryo 585
Chipset

Qualcomm SM8250-AC Snapdragon 870 5G

Qualcomm SM6225 Snapdragon 680 4G
GPU

Adreno 650

Adreno 610
Memory RAM

6, 8, 12 GB

8 GB
Internal storage

128, 256 GB

128, 256 GB
Memory card

No

microSD, microSDHC, microSDXC
Memory card max

-

1 TB
Storage

UFS 3.1

UFS 2.2

Main camera
Camera type

Triple

Dual
Main camera

(wide) , 48 MP, f/1.8 , 1/2" , 0.8 µm

(wide) , 50 MP, f/1.8
(ultrawide) , 8 MP, 119˚

(depth) , 2 MP, f/2.4
(macro) , 2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

-
Primary camera video

4K@30fps, 1080p@30/60/120fps, 720p@960fps; gyro-EIS

1080p@30fps
Primary camera flash

dual-LED dual-tone flash

dual-LED dual-tone flash
Camera features

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

Autofocus, continuous shooting, digital zoom, digital 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

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
WLAN WiFi Hotspot

Yes

-
WLAN WiFi Direct

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

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

Yes

Yes (market dependent)
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

Yes
NavIC

Yes

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