Difference between VIVO Y55S 5G and ULEFONE ARMOR 21 ?

	PRODUCT 1	PRODUCT 2
	VIVO VIVO Y55S 5G	ULEFONE ULEFONE ARMOR 21
VERSION
Announced	December 2021	May 2023
Release date	December 2021	May 2023
NETWORK
Technology	5G	4G
DEVICE
Dimensions		176 x 81.6 x 18.1 mm (6.93 x 3.21 x 0.71 in)
Weight	199.8 (g7.05 oz)	400 (g14.11 oz)
S.I.M.	Dual SIM
Design	8 MP	16 MP (1080p@30fps)
Other		IP68/IP69K dust/water resistant,Drop-to-concrete resistance,Accessory connector (ulefone endoscope,microscope),
SCREEN
langfront.Type	IPS LCD	IPS LCD,120Hz,
Size	6.58 inches	6.58 inches
Resolution	1080 x 2408 pixels	1080 x 2408 pixels
Protection

PLATFORM
Operating system	Android 11,OriginOS,	Android 13
Chipset	MediaTek MT6833 Dimensity 700 5G (7nm)	Mediatek MT8781 Helio G99 (6nm)
Processor	Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)	Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU	Mali-G57 MC2	Mali-G57 MC2
MEMORY
Card slot	❌	microSDXC
Internal & RAM	128GB 8GB RAM	256GB 8GB RAM
CAMERA
Main	50 MP + 2 MP	64 MP + 24 MP (2 infrared night vision lights)
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	dual-band
Bluetooth	✔️	5.2
GPS	✔️	✔️
NFC	❌	✔️
Radio	FM Radio	Stereo FM radio,recording,
USB	USB Type-C	microUSB 2.0
CHARACTERISTICS
Sensors	Fingerprint (side-mounted),accelerometer,proximity,compass / Fingerprint (side mounted),accelerometer,proximity,compass,	Fingerprint (side-mounted),accelerometer,proximity,compass,gyro,barometer,infrared port,
Various	Fast Charging 18W / Fast battery charge 18W	Fast Charging 33W
BATTERY
Type	6000 mAh	9600 mAh

What is the difference between VIVO Y55S 5G and ULEFONE ARMOR 21 ?