Difference between VIVO IQOO U1X and VIVO X27 PRO ?

	PRODUCT 1	PRODUCT 2
	VIVO VIVO IQOO U1X	VIVO VIVO X27 PRO
VERSION
Announced	2020	2019
Release date	2020	2019
NETWORK
Technology	GSM / HSPA / LTE
DEVICE
Dimensions	164.4 x 76.3 x 8.4 mm (6.47 x 3.00 x 0.33 in)	165.7 x 74.6 x 9 mm
Weight	192.3 (g6.77 oz)
S.I.M.	Dual SIM / Double SIM ☺
Design	8 MP	32MP
Other
SCREEN
langfront.Type	IPS LCD
Size	6.51 inches ☺	6.7 inches - 1080 x 2460 pixels
Resolution	720 x 1600 pixels ↓↓
Protection
PLATFORM
Operating system	Android 10,IQOO UI 1.0,	Android 9.0 (Pie)
Chipset	Qualcomm SM6115 Snapdragon 662 (11nm) ↓↓	Qualcomm SDM710 Snapdragon 710 (10nm)
Processor	Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)	Octa-core (2x2.2 GHz 360 Gold & 6x1.7 GHz Kryo 360 Silver)
GPU	Adreno 610 ↓↓	Adreno 616
MEMORY
Card slot	No / non ↓↓	❌
Internal & RAM	64GB 4GB RAM, 64GB 6GB RAM, 128GB 6GB RAM →	256 GB, 8 GB RAM
CAMERA
Main	13 MP + 2 MP + 2 MP ↓↓	48 MP + 13 MP + 2 MP - Selfie : 32 MP
SOUND
Loudspeaker	✔️	✔️
Jack 3,5 mm	✔️	✔️
CONNECTIVITY
Wifi	✔️	✔️
Bluetooth	✔️	✔️
GPS	✔️	✔️
NFC	❌	✔️
Radio
USB	microUSB 2.0	2.0,Type-C 1.0,
CHARACTERISTICS
Sensors	Fingerprint (side-mounted),accelerometer,proximity,compass / Fingerprint (side mounted) ☺,	Fingerprint reader under the screen and fast charging
Various	Fast Charging 18W / Fast battery charge 18W ☺	accelerometer,gyro,proximity,compass,
BATTERY
Type	5000 mAh ♥♥	4000 mAh

What is the difference between VIVO IQOO U1X and VIVO X27 PRO ?