Xiaomi Mi Mix Fold vs 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 1xEV-DO

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 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, 79 SA/NSA

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 (CA)

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (folded), plastic front (unfolded), glass back (Gorilla Glass 5) or ceramic back, aluminum frame

Glass front, plastic frame
SIM

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

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

173.3 mm

164.4 mm
Width

69.8 mm

75.1 mm
Thickness

9 mm

7.5 mm
Height unfolded

173.3 mm

-
Width unfolded

133.4 mm

-
Thickness unfolded

17.2 mm

-
Weight

317 (glass) / 332 (ceramic) g

185.8 g
Waterproof

-

IP54
Dust proof

-

IP54
Colors

Black, Ceramic

Black, Blue/Green, Silver

Display
Display type

Foldable AMOLED

AMOLED
Physical size

8.01 inches

6.78 inches
Resolution

1860 x 2480 pixels

1260 x 2800 pixels
Pixel density

387 ppi

453 ppi
Display colors

1073741824

1073741824
Protection

Scratch resistant

Scratch resistant, 3D curved glass screen
Display features

HDR10+, Dolby Vision, 600 nits (typ), 900 nits (peak)

120Hz, 2800 nits (peak)
Cover display

AMOLED

-
Cover display physical size

6.52 inches

-
Cover display resolution

840 x 2520 pixels

-
Cover display features

90Hz, HDR10+, Dolby Vision, 650 nits (typ), 900 nits (peak)

-

Main camera
Camera type

Triple

Dual
Main camera

(wide) , 108 MP, f/1.8 , 80 mm, 1/1.52" , 0.7 µm

(wide) , 50 MP, f/1.9 , 1/1.55" , 1.0 µm
(telephoto/macro) , 8 MP, 3x optical zoom

(ultrawide) , 8 MP, f/2.2
123 , (ultrawide) , 13 MP, f/2.4 , 1.12 µm
Primary camera resolution

-

8120 x 6180 pixels
Primary camera video

8K@24/30fps, 4K@30/60fps, 1080p@30/60fps, gyro-EIS

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

dual LED flash

Ring-LED flash
Camera features

Autofocus, continuous autofocus, 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, stagger HDR, AI 2.0, night mode 2.0

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

(wide) , 20 MP, f/2.4 , 80˚ , 27 mm, 1/3.4" , 0.8 µm

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

5184 x 3880 pixels

8192 x 6144 pixels
Selfie camera features

Face unlock, HDR, panorama

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

1080p@30/60fps, 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

Type-C 2.0
USB On-The-Go

-

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, compass, color spectrum, fingerprint, gyroscope, proximity

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