Comparison of Oppo A3 and Vivo X20

Comparison of Oppo A3 and Vivo X20 [S]ave

Attribute	Oppo A3 ×	Vivo X20 ×
General
Brand	Oppo	Vivo
Launch
Announced	2018-04-01	2017-09-01
Body
Width (mm)	7.8	7.2
Length (mm)	156	155.9
Height (mm)	75.3	75.2
Weight (g)	159	159
SIM	Dual SIM (Nano-SIM, dual stand-by)	Hybrid Dual SIM (Nano-SIM, dual stand-by)
Front	-	Glass
Back	-	Aluminum
Frame	-	Aluminum
Network
Technology	CDMA GSM HSPA LTE	CDMA GSM HSPA LTE
2G bands	CDMA 800 & TD GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	CDMA 800 & TD GSM 900 / 1800 - SIM 1 & SIM 2
3G bands	HSDPA 850 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100
4G bands	1, 3, 4, 5, 8, 34, 38, 39, 40, 41 1, 3, 5, 7, 8, 34, 38, 39, 40, 41	1, 2, 3, 4, 5, 8, 1, 2, 3, 5, 7, 8, 34, 38, 39, 40, 41
Speed	HSPA 42.2/5.76 Mbps LTE-A (2CA) Cat13 600/100 Mbps	HSPA 42.2/5.76 Mbps LTE-A (2CA) Cat6 300/50 Mbps
Platform
OS	Android 8.1 (Oreo)	Android 7.1.1 (Nougat)
Chipset	Mediatek MT6771 Helio P60 (12 nm)	Qualcomm SDM660 Snapdragon 660 (14 nm)
CPU	Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)	Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU	Mali-G72 MP3	Adreno 512
Memory
Card slot	microSDXC (dedicated slot)	microSDXC (uses shared SIM slot)
Internal	128GB 4GB RAM	64GB 4GB RAM
Display
Size (in)	6.2	6.01
Resolution (px)	1080 x 2280	1080 x 2160
Display Type	LTPS IPS LCD	Super AMOLED
Battery
Type	Li-Ion	Li-Ion
Charging	-	Fast charging 18W
Capcity (mAh)	3400	3250
Main Camera
Main Camera Type	Single	Dual
Main Camera Properties	16 MP, f/1.8, PDAF	12 MP, f/1.8, AF 5 MP, f/2.4, (depth)
Main Camera Video	1080p@30fps	1080p@30fps
Main Camera Features	LED flash, HDR, panorama	LED flash, HDR, panorama
Selfie Camera
Selfie Camera Type	Single	Single
Selfie Camera Properties	8 MP, f/2.2	12 MP, f/2.0, (wide), 1/2.8", 1.28µm
Comms
WLAN	Wi-Fi 802.11 b/g/n/ac, dual-band, Wi-Fi Direct, hotspot	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth	4.2, A2DP, LE	5.0, A2DP, LE
GPS	+	+
NFC	-	-
Radio	FM radio	No
USB	microUSB 2.0, USB On-The-Go	microUSB 2.0, USB On-The-Go
Sound
Loudspeaker	+	+
3.5mm jack	+	+
Features
Sensors	Accelerometer compass gyro proximity	Fingerprint (rear-mounted) accelerometer compass gyro proximity
Misc
Colors	Garnet Red Knight Black Soybean Meal Stardust Silver	Black/Gold Blue Gold Matte Black Pink Rose gold
Models	CPH1837 PADM00 PADT00	1721 X20A