Difference between OPPO REALME X2 PRO and VIVO S9 ?

	PRODUCT 1	PRODUCT 2
	OPPO OPPO REALME X2 PRO	VIVO VIVO S9
VERSION
Announced	2019	2021
Release date	2019	2021
NETWORK
Technology		5G
DEVICE
Dimensions	161 x 75.7 x 8.7 mm	158.4 x 73.9 x 7.4 mm (6.24 x 2.91 x 0.29 in)
Weight	199 g	173 (g6.10 oz)
S.I.M.	Double SIM	Dual SIM
Design	16MP	44 MP (4K@30fps) + 8 MP
Other	1000 nits max brightness - 90Hz - HDR10+ - DCI-P3 100%
SCREEN
langfront.Type		AMOLED,90Hz,HDR10+,
Size	6.5 inches	6.44 inches
Resolution	1080 x 2400 pixels	1080 x 2400 pixels
Protection	Corning Gorilla Glass 5

PLATFORM
Operating system	Android 9.0 (Pie),planned upgrade to Android 10.0; ColorOS 6.1,	Android 11,OriginOS 1.0,
Chipset	Qualcomm SDM855 Snapdragon 855+ (7nm)	MediaTek MT6891Z Dimensity 1100 5G (6nm)
Processor	Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)	Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU	Adreno 640	Mali-G77 MC9
MEMORY
Card slot	❌	❌
Internal & RAM	64GB 6GB RAM, 128GB 8GB RAM, 256GB 12GB RAM	128GB 8GB RAM, 256GB 12GB RAM
CAMERA
Main	64 MP + 13 MP + 8 MP + 2 MP	64 MP + 8 MP + 2 MP
SOUND
Loudspeaker	Oui, avec les haut-parleurs stéréo Dolby Atmos	✔️
Jack 3,5 mm	✔️	❌
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC	✔️	✔️
Radio	FM Radio	❌
USB	2.0,Type-C 1.0,	USB Type-C
CHARACTERISTICS
Sensors	Fingerprint (under display,optical),accelerometer,gyro,proximity,compass,	Fingerprint (under display,optical),accelerometer,gyro,proximity,compass / Fingerprint (under screen),optical),accelerometer,gyroscope,proximity,compass,
Various	50W fast battery charging	Fast Charging 33W / Fast battery charge 33W
BATTERY
Type	4000 mAh	4000 mAh

What is the difference between OPPO REALME X2 PRO and VIVO S9 ?

OPPO

OPPO REALME X2 PRO

VIVO

VIVO S9