vivo X51 5G vs vivo X90

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

HSDPA 800, 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, 32, 38, 39, 40, 41, 66

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41
5G network

5G band 1, 3, 7, 8, 28, 38, 41, 77, 78 SA/NSA

5G band 1, 3, 5, 8, 28, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front, glass back, aluminum frame

Glass front, glass back or eco leather back
SIM

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

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

158.5 mm

164.1 mm
Width

72.8 mm

74.4 mm
Thickness

8 mm

8.5 mm
Weight

181.5 g

196/200 g
Waterproof

-

IP64
Dust proof

-

IP64
Colors

Gray

Black, Blue, Red

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 2.4 GHz Kryo 475 Prime

Single-core 3.05 GHz Cortex-X3
CPU(second)

Single-core 2.2 GHz Kryo 475 Gold

Triple-core 2.85 GHz Cortex-A715
CPU(third)

Hexa-core 1.8 GHz Kryo 475 Silver

Quad-core 1.8 GHz Cortex-A510
Chipset

Qualcomm SM7250 Snapdragon 765G

MediaTek Dimensity 9200
GPU

Adreno 620

Arm Immortalis-G715
Internal storage

256 GB

128, 256, 512 GB
Memory RAM

8 GB

8, 12 GB
Memory card

No

No
Storage

UFS 2.1

UFS 3.1, UFS 4.0

OS
OS

Android 10, Funtouch 10.0

Android 13, Funtouch (global), Origin OS 3 (China)

Main camera
Camera type

Quad

Triple
Main camera

(wide) , 48 MP, f/1.6 , 1/1.2" , 0.8 µm

(wide) , 50 MP, f/1.8 , 1/1.49" , 1.0 µm, 10x digital zoom
(periscope telephoto) , 8 MP, f/3.4 , 135 mm, 1/4.0" , 5x optical zoom

(telephoto) , 12 MP, f/2.0 , 50 mm, 1/2.93" , 2x optical zoom , 1.22 µm
(portrait) , 13 MP, f/2.5 , 50 mm, 1/2.8" , 0.8 µm, 2x optical zoom

(ultrawide) , 12 MP, f/2.0 , 16 mm, 1/2.93" , 1.22 µm, 116˚
(ultrawide) , 8 MP, f/2.2 , 120˚ , 16 mm, 1/4.0" , 1.12 µm
Primary camera resolution

8000 x 6000 pixels

8190 x 6120 pixels
Primary camera video

4K@30fps, 1080p@30fps, gyro-EIS

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

-

Zeiss optics
Primary camera flash

dual-LED dual-tone flash

dual-LED dual-tone 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, macro-mode, phase detection autofocus

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, phase detection autofocus, laser autofocus
DxOMark photo

117

-
DxOMark zoom

67

-
DxOMark video

102

-
DxOMark camera score

114

-

Selfie camera
Selfie camera type

Single

Single
Selfie camera

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

(wide) , 32 MP, f/2.5 , 24 mm, 1/2.8" , 0.8 µm
Selfie camera resolution

6528 x 4896 pixels

6528 x 4896 pixels
Selfie camera features

Face unlock

Face unlock
Selfie camera video

1080p@30fps

4K@30fps, 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

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

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

v5.1

v5.3
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

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
NavIC

-

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

4315 mAh

4810 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

Vivo FlashCharge (57% in 30 min)

Yes, 120W (50% in 8 min)
Reverse charging

-

Yes
Talk time 4G

-

17.5 h
DxOMark autonomy

45

-
DxOMark charging

80

-
DxOMark efficiency

68

-
DxOMark battery score

60

-