Xiaomi Mi Mix Fold vs vivo V21s

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 1xEV-DO

HSDPA 850, 900, 1700(AWS), 1900, 2100
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, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66
5G network

5G band 1, 3, 28, 41, 77, 78, 79 SA/NSA

5G band 1, 28, 40, 41, 77, 78, 79 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
EV-DO speed

-

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

LTE-A (CA)

LTE-A, Cat12, 1200 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

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

Plastic
SIM

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

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

173.3 mm

159.7 mm
Width

69.8 mm

73.9 mm
Thickness

9 mm

7.3 mm
Height unfolded

173.3 mm

-
Width unfolded

133.4 mm

-
Thickness unfolded

17.2 mm

-
Weight

317 (glass) / 332 (ceramic) g

176 / 177 g
Colors

Black, Ceramic

Blue, Gradient

Display
Display type

Foldable AMOLED

AMOLED
Physical size

8.01 inches

6.44 inches
Resolution

1860 x 2480 pixels

1080 x 2404 pixels
Pixel density

387 ppi

409 ppi
Display colors

1073741824

16777216
Protection

Scratch resistant

Scratch resistant
Display features

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

Triple
Main camera

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

(wide) , 64 MP, f/1.8 , 26 mm, 0.7 µm
(telephoto/macro) , 8 MP, 3x optical zoom

(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
123 , (ultrawide) , 13 MP, f/2.4 , 1.12 µm

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

-

9280 x 6920 pixels
Primary camera video

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

4K@30fps, 1080p@30/60fps
Primary camera flash

dual LED flash

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, 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) , 44 MP, f/2.0 , 150 mm
Selfie camera resolution

5184 x 3880 pixels

-
Selfie camera features

Face unlock, HDR, panorama

Autofocus, face unlock, HDR, optical image stabilization
Selfie camera video

1080p@30/60fps, 720p@120fps

4K@30fps, 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
WLAN WiFi Hotspot

Yes

-
WLAN WiFi Direct

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.2

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
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

-
NavIC

Yes

-

Features
Sensors

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

Accelerometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

5020 mAh

4000 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Quick Charge 4+ (100% in 37 min)

Yes, 33W (63% in 30 min)