Oppo Reno4 Z 5G vs Oppo A91

General Info

Manufacturer
Oppo	Oppo
Announced
2020, September 29	2019, December
Status
Coming soon. Exp. release 2020, October	Coming soon. Exp. release 2019, December 26
Colors
Black, White, Pink	Black, Blue, Red
Form Factor
Candybar	Candybar
Dimension
163.8 x 75.5 x 8.1 mm (6.45 x 2.97 x 0.32 in)	7.9 mm thickness (0.31 in thickness)
Weight
184 g (6.49 oz)	172 g (6.07 oz)
SIM Type
Dual SIM (Nano-SIM, dual stand-by)	Dual SIM (Nano-SIM, dual stand-by)
2G Network
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA
3G Network
HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	HSDPA 850 / 1700(AWS) / 1900 / 2100
4G Network
LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100)	LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
5G Network
1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA	-
Messaging

Build Features
- Fingerprint Sensor (side-mounted)	- Fingerprint Sensor(In-display)

OS
Android 10	Android 9.0 (Pie)
User Interface
ColorOS 7.1	ColorOS 6.1
Processor
Octa-core (4x2.0 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55), MediaTek MT6873V Dimensity 800 5G (7 nm) [Similar]	Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53), Mediatek MT6771V Helio P70 (12nm) [Similar]
GPU
Mali-G57MP4 [Similar]	Mali-G72 MP3 [Similar]
RAM
8 GB [Browse Similar]	8 GB [Browse Similar]
Internal Memory
128 GB	128 GB
External Memory
No	microSD, up to 256 GB (dedicated slot)

Type
LTPS IPS LCD Capacitive Touchscreen 120Hz refresh rate 480 nits typ. value (advertised)	Super AMOLED Capacitive Touchscreen
Colors
16M colors	16M colors
Size
6.57 inches [Similar]	6.4 inches [Similar]
Resolution
1080 x 2400 pixels (401 ppi)	1080 x 2340 pixels (403 ppi)
Screen-to-Body Ratio
84.09%	-
Multi-Touch

Rear Camera
48 MP + 8 MP + 2 MP + 2 MP [Similar]	48 MP + 8 MP + 2 MP + 2 MP [Similar]
Flash
LED Flash	LED flash
Features
48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, (macro) 2 MP, f/2.4, (depth) HDR, panorama	48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm 2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera) 2 MP, f/2.4, 1/5", 1.75µm, depth sensor HDR
Video
4K@30fps, 1080p@30fps, gyro-EIS	2160p@30fps
Front Camera
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm 2 MP, f/2.4, (depth) HDR 1080p@30 [Similar]	16 MP, f/2.0, 26mm (wide), 1/3.1", 1.0µm HDR 1080p@30fps [Similar]

GPRS
Yes	Yes
Edge
Yes	Yes
3G
HSPA 42.2/11.5 Mbps, LTE-A, 5G	HSPA 42.2/11.5 Mbps, LTE-A
Bluetooth
5.1, A2DP, LE, aptX HD	5.0, A2DP, LE, aptX HD
Wi-Fi
Wi-Fi 802.11 a/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
USB
USB Type-C 2.0, USB On-The-Go	2.0, Type-C 1.0 reversible connector, USB On-The-Go
GPS
Yes, with A-GPS, GLONASS, BDS	Yes, with A-GPS
Browser
Yes	Yes

Internal
128 GB, 8 GB RAM (UFS 2.1)	128 GB, 8 GB RAM
Expandable Storage
No	microSD, up to 256 GB (dedicated slot)
USB OTG
Supported	Supported

Fingerprint

Proximity Sensor

Accelerometer Sensor

Magnetic-field Sensor (Compass)

Gyroscope Sensor

NFC

Type
Non-removable Li-Po Battery Fast battery charging 18W	Non-removable Li-Po Battery Fast battery charging 30W
Capacity
4000 mAh	4000 mAh
Stand by
-	-
Talk Time
-	-