Xiaomi Civi 2 vs vivo X51 5G

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

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

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

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 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, 5, 8, 28, 38, 41, 77, 78 SA/NSA

5G band 1, 3, 7, 8, 28, 38, 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

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 5), glass back, aluminum frame

Glass front, glass back, aluminum frame
SIM

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

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

159.2 mm

158.5 mm
Width

72.7 mm

72.8 mm
Thickness

7.2 mm

8 mm
Weight

171.8 g

181.5 g
Colors

Black, Blue, Silver, Violet

Gray

Display
Display type

AMOLED

AMOLED
Physical size

6.55 inches

6.56 inches
Resolution

1080 x 2400 pixels

1080 x 2376 pixels
Pixel density

402 ppi

398 ppi
Display colors

1073741824

16777216
Protection

Scratch resistant, 3D curved glass screen, Corning Gorilla Glass 5

Scratch resistant
Display features

Dolby Vision, HDR10+, 120Hz, 1000 nits (peak)

90Hz, HDR10+
DxOMark display score

-

87

Main camera
Camera type

Triple

Quad
Main camera

(wide) , 50 MP, f/1.8 , 1/1.56" , 1.0 µm

(wide) , 48 MP, f/1.6 , 1/1.2" , 0.8 µm
(ultrawide) , 20 MP, f/2.2 , 115˚ , 1/2.78" , 1.0 µm

(periscope telephoto) , 8 MP, f/3.4 , 1/4.0" , 135 mm, 5x optical zoom
(macro) , 2 MP, f/2.4

(portrait) , 13 MP, f/2.5 , 50 mm, 1/2.8" , 0.8 µm, 2x optical zoom
(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
Primary camera resolution

9280 x 6920 pixels

8000 x 6000 pixels
Primary camera video

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

4K@30fps, 1080p@30fps, gyro-EIS
Primary camera flash

2x Dual-LED dual-tone flash

dual-LED dual-tone flash
Camera features

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

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
DxOMark photo

-

117
DxOMark zoom

-

67
DxOMark video

-

102
DxOMark camera score

-

114

Selfie camera
Selfie camera type

Dual

Single
Selfie camera

(wide) , 32 MP, f/2.0 , 1/2.8" , 0.8 µm

(wide) , 32 MP, f/2.5 , 1/2.8" , 0.8 µm, 26 mm
(ultrawide) , 32 MP, 1/2.8" , 0.8 µm
Selfie camera resolution

-

6528 x 4896 pixels
Selfie camera features

Face unlock, face detection, HDR, autofocus

Face unlock
Selfie camera video

1080p@30/60fps

1080p@30fps
DxOMark photo

-

82
DxOMark video

-

78
DxOMark camera score

-

81

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

Yes
WLAN WiFi Direct

Yes

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

v5.1
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
Infrared

Yes

-
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
BDS

Yes

Yes
QZSS

Yes

-

Features
Sensors

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

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

Battery
Battery type

Li-Po

Li-Po
Battery capacity

4500 mAh

4315 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Quick Charge 2.0, 67W (100% in 40 min)

Vivo FlashCharge (57% in 30 min)
DxOMark autonomy

-

45
DxOMark charging

-

80
DxOMark efficiency

-

68
DxOMark battery score

-

60