Oppo K7 5G vs vivo X90

Network
2G network

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

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

HSDPA 800, 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO

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, 34, 38, 39, 40, 41

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, 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
5G speed

1.9 Gbps download

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

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

160.3 mm

164.1 mm
Width

74.3 mm

74.4 mm
Thickness

8 mm

8.5 mm
Weight

180 g

196/200 g
Waterproof

-

IP64
Dust proof

-

IP64
Colors

Black, Blue, Blue/Red, White

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 SDM765 Snapdragon 765G

MediaTek Dimensity 9200
GPU

Adreno 620

Arm Immortalis-G715
Internal storage

128, 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

Main camera
Camera type

Quad

Triple
Main camera

48 MP, f/1.7 , 1/2.0" , 0.8 µm

50 MP, f/1.8 , 1/1.49" , 1.0 µm, (wide) , 10x digital zoom
8 MP, f/2.2 , 13 mm, 1/4" , 1.12 µm

12 MP, f/2.0 , 50 mm, 1/2.93" , 1.22 µm, (telephoto) , 2x optical zoom
2 MP, f/2.4 , 1/5" , 1.75 µm

12 MP, f/2.0 , 1/2.93" , 1.22 µm, 116˚ , (ultrawide) , 16 mm
2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

8190 x 6120 pixels
Primary camera video

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

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

-

Zeiss optics
Primary camera flash

LED flash

dual-LED dual-tone flash
Camera features

Autofocus, continuous 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, contrast 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

Selfie camera
Selfie camera type

-

Single
Selfie camera

32 MP, f/2.0 , 26 mm, 1/2.8" , 0.8 µm

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

6560 x 4928 pixels

6528 x 4896 pixels
Selfie camera features

-

Face unlock
Selfie camera video

1080p@30fps

4K@30fps, 1080p@30fps

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
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

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
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

Yes

-
BDS

-

Yes
QZSS

Yes

Yes
NavIC

-

Yes