Samsung Galaxy S21 5G vs vivo iQOO Z7i

Samsung Galaxy S21 5G

vivo iQOO Z7i

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA

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

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO

HSDPA 850, 900, 2100; CDMA2000 1x
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71

LTE frequency band 1, 3, 5, 8, 28, 34, 38, 39, 40, 41
5G network

5G band SA/NSA/Sub6/mmWave

5G band 1, 5, 8, 28, 41, 77, 78 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), 2000 Mbps download, 200 Mbps upload

LTE, 391 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass Victus), plastic back, aluminum frame

Glass front, plastic frame, plastic back
SIM

Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)

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

151.7 mm

164.1 mm
Width

71.2 mm

75.6 mm
Thickness

7.9 mm

8.2 mm
Weight

169 (Sub6) / 171 (mmWave) g

186 g
Payment

Samsung Pay (Visa, MasterCard certified)

-
Waterproof

IP68 (1.5m and 30 mins)

-
Dust proof

IP68

-
Colors

Gray, Pink, Violet, White

Black, Blue

Display
Display type

Dynamic AMOLED 2X

IPS LCD
Physical size

6.2 inches

6.51 inches
Resolution

1080 x 2400 pixels

720 x 1600 pixels
Pixel density

421 ppi

270 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, Corning Gorilla Glass Victus

-
Display features

120Hz, HDR10+, 1300 nits (peak), Infinity-O display, Always-On display

-

Main camera
Camera type

Triple

Dual
Main camera

(wide) , 12 MP, f/1.8 , 26 mm, 1/1.76" , 1.8 µm

(wide) , 13 MP, f/2.2 , 10x digital zoom
(telephoto) , 64 MP, f/2.0 , 29 mm, 1/1.72" , 0.8 µm, 1.1x optical zoom , 3x hybrid zoom

(macro) , 2 MP, f/2.4
120˚ , (ultrawide) , 12 MP, f/2.2 , 13 mm, 1/2.55" , 1.4 µm
Primary camera resolution

4032 x 3024 pixels

4160 x 3120 pixels
Primary camera video

8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS

1080p@30fps
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, optical zoom, 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
DxOMark photo

123

-
DxOMark zoom

77

-
DxOMark video

93

-
DxOMark camera score

116

-

Selfie camera
Selfie camera type

-

Single
Selfie camera

(wide) , 10 MP, f/2.2 , 80˚ , 26 mm, 1/3.24" , 1.22 µm

(wide) , 5 MP, f/1.8
Selfie camera resolution

3648 x 2736 pixels

2560 x 1944 pixels
Selfie camera features

Autofocus, HDR, phase detection autofocus

-
Selfie camera video

4K@30/60fps, 1080p@30fps

1080p@30fps
DxOMark photo

100

-
DxOMark video

95

-
DxOMark camera score

98

-

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax, 6E

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 3.2

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
NFC

Yes

No
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

-

Yes