Xiaomi Redmi K30 5G vs vivo X Fold

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 1900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
4G network

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 32, 66
5G network

5G band 41(2500), 78(3500); Sub6

5G band 1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66, 77, 78, 79 SA/NSA
HSDPA speed

42 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A

LTE-A
5G speed

2+ Gbps download

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD capacitive touchscreen

Foldable LTPO AMOLED
Physical size

6.67 inches

8.03 inches
Resolution

1080 x 2400 pixels

1916 x 2160 pixels
Pixel density

395 ppi

360 ppi
Display colors

16777216

16777216
Protection

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

Scratch resistant
Multitouch

Yes

-
Display features

HDR10, 120Hz sampling rate

120Hz, HDR10+
Cover display

-

AMOLED
Cover display physical size

-

6.53 inches
Cover display resolution

-

1080 x 2520 pixels

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 2.4 GHz Kryo 475 Prime

Single-core 3.0 GHz Cortex-X2
CPU(second)

Single-core 2.2 GHz Kryo 475 Gold

Triple-core 2.50 GHz Cortex-A710
CPU(third)

Hexa-core 1.8 GHz Kryo 475 Silver

Quad-core 1.8 GHz Cortex-A510
Chipset

Qualcomm SDM765 Snapdragon 765G

Qualcomm SM8450 Snapdragon 8 Gen 1
GPU

Adreno 620

Adreno 730
Memory RAM

6, 8 GB

12 GB
Internal storage

64, 128, 256 GB

256, 512 GB
Memory card

microSD, microSDHC, microSDXC

No
Memory card max

256 GB

-
Storage

UFS 2.1

UFS 3.1

Main camera
Camera type

Quad

Quad
Main camera

64 MP, f/1.9 , 26 mm, 1/1.7" , 0.8 µm

50 MP, f/1.8 , 1/1.57" , 1.0 µm, (wide)
8 MP, f/2.2 , 13 mm, 1/4" , 1.12 µm

8 MP, f/3.4 , 125 mm, (periscope telephoto) , 5x optical zoom
2 MP, f/2.4 , 1/5" , 1.75 µm

12 MP, f/2.0 , (telephoto) , 47 mm, 2x optical zoom
2 MP, f/2.4 , 1/5" , 1.75 µm

48 MP, f/2.2 , (ultrawide) , 114˚ , 14 mm
Primary camera resolution

9248 x 6944 pixels

8192 x 6144 pixels
Primary camera video

2160p@30fps, 1080p@30/120fps, 720p@960fps

8K@30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS
Primary camera optics

-

Zeiss optics
Primary camera flash

dual LED flash

dual-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 autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, face unlock, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, laser autofocus

Selfie camera
Selfie camera type

Dual

Single
Selfie camera

20 MP, f/2.2 , 27 mm, 1/3.4" , 0.8 µm

16 MP, f/2.5 , (wide)
2 MP, f/2.4 , 1/5" , 1.75 µm
Selfie camera resolution

5963 x 3354 pixels

4608 x 3456 pixels
Selfie camera features

-

Digital image stabilization, face detection, face unlock, HDR
Selfie camera video

1080p@30fps

1080p@30fps

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
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C reversible connector

Type-C 3.1
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
Infrared

Yes

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

Yes

-
BDS

-

Yes
QZSS

Yes

Yes
NavIC

-

Yes

Features
Sensors

Accelerometer, barometer, compass, geomagnetic, gravity, gyroscope, pedometer, proximity, light, side-mounted fingerprint sensor

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity