Difference between VIVO IQOO Z9S PRO and OPPO A1K ?

	PRODUCT 1	PRODUCT 2
	VIVO VIVO IQOO Z9S PRO	OPPO OPPO A1K
VERSION
Announced	August 2024	2019
Release date	August 2024	2019
NETWORK
Technology	5G
DEVICE
Dimensions	163.7 x 75 x 7.5 or 8.0 mm	154.5 x 73.8 x 8.4 mm
Weight	185 g or 190 g	170 g
S.I.M.		Double SIM
Design	16 MP (1080p@30fps)	5 MP
Other	IP64, dust and water resistant
SCREEN
langfront.Type	AMOLED,1B colors,120Hz,HDR10+,
Size	6.77 inches	6.1 inches
Resolution	1080 x 2392 pixels	720 x 1560 pixels
Protection	Schott Xensation	Gorilla Glass 3

PLATFORM
Operating system	Android 14, Funtouch 14	Android 9.0 (Pie); ColorOS 6
Chipset	Qualcomm SM7550-AB Snapdragon 7 Gen 3 (4 nm)	Mediatek MT6762 Helio P22 (12nm)
Processor	Octa-core (1x2.63 GHz Cortex-A715 & 3x2.4 GHz Cortex-A715 & 4x1.8 GHz Cortex-A510)	Octa-core 2.0 GHz Cortex-A53
GPU	Adreno 720	PowerVR GE8320
MEMORY
Card slot	❌	microSD, jusqu`à 256 Go
Internal & RAM	128GB 8GB RAM or 256GB 8GB RAM or 256GB 12GB RAM	32GB 2GB RAM
CAMERA
Main	50 MP (f/1.8)(Optical Image Stabilization) + 8 MP (120°)	8 MP
SOUND
Loudspeaker	Yes, with stereo speakers	✔️
Jack 3,5 mm	❌	✔️
CONNECTIVITY
Wifi	Wi-Fi a/b/g/n/ac/6, dual-band	✔️
Bluetooth	5.4
GPS	✔️	✔️
NFC	❌
Radio	FM radio	FM Radio
USB	USB Type-C 2.0	microUSB 2.0
CHARACTERISTICS
Sensors	Fingerprint (under display,optical),accelerometer,gyro,proximity,compass,	Accelerometer,proximity,compass,
Various	Fast charging 80W, Reverse charging 7.5W
BATTERY
Type	5500 mAh	4000 mAh

What is the difference between VIVO IQOO Z9S PRO and OPPO A1K ?