Oppo A31 vs vivo NEX A: specs comparison

Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

Display technology

OLED versus LCD

A31:

LCD

NEX A:

OLED
Weight

A31: 19 g lighter

A31:

180 g

NEX A:

199 g
Width

A31: 1.5 mm narrower

A31:

75.5 mm

NEX A:

77 mm
Memory variants

At 128 GB storage

A31:

4 GB RAM

NEX A:

6 GB RAM
Rear camera layout

A31:

Triple

NEX A:

Dual
Release year

A31:

2020

NEX A:

2018

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

1. A31

Height:

163.9 mm
Width:

75.5 mm
Depth:

8.3 mm
2. NEX A

Height:

162 mm
Width:

77 mm +1.5 mm versus A31
Depth:

8 mm

Weight

Bars start at zero and share a scale within this chart.

1. A31

180 g
2. NEX A

199 g

+19 g versus A31

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

At least two phones need compatible screen dimensions for a drawing.

1. A31

Screen diagonal:

6.5 in

Aspect ratio (height:width):

20:9

Approximate rectangular screen area:

102 cm²
2. NEX A

NEX A: Screen geometry unavailable or conflicting.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for A31, NEX A, compared at the same storage capacity.
Storage	A31	NEX A
128 GB Recorded for all phones	4 GB RAM	6 GB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. A31

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSDXC (dedicated slot)

2. NEX A

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: No

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

1. A31

4230 mAh

+230 mAh versus NEX A
2. NEX A

4000 mAh

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. A312. NEX A

Everyday essentials

Everyday essentials — specifications for A31, NEX A.
Specification	A31	NEX A
Dimensions (HxWxD)	163.9 Х 75.5 Х 8.3 mm	162 Х 77 Х 8 mm
Weight	180 g	199 g
Technology	IPS LCD	Super AMOLED
Screen size	6.5" inch	6.59" inch
Screen resolution	720 x 1600 px	1080 x 2316 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	128GB 4GB RAM	128 GB 6 GB RAM
Memory card support	microSDXC (dedicated slot)	No
Battery Capacity is not battery life. No endurance test is implied.	4230 mAh Non-removable Li-Po	4000 mAh Non-removable Li-Ion
Operating system OS	Android 9.0 (Pie); ColorOS 6.1	Android 8.1 (Oreo); Funtouch 4
Chipset	Mediatek MT6765V/CB Helio P35 (12nm)	Qualcomm SDM710 Snapdragon 710 (10 nm)
Headphone jack	Yes	Yes

Display

Display — specifications for A31, NEX A.
Specification	A31	NEX A
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	102.0 cm2	107.3 cm2
Screen format	20:9 (height:width)	Unknown
Screen to body ratio	82.4%	86.0%
PPI /points per inch/	270 PPI	0 PPI

Camera and Video

Camera and Video — specifications for A31, NEX A.
Specification	A31	NEX A
Rear camera, main	12 MP Triple	12 MP Dual
Camera specs	12 MP f/1.8 (wide) PDAF -2 MP f/2.4 27mm (macro) 1/5.0'' 1.75µm -2 MP (depth)	12 MP f/1.8 1/2.55'' 1.4µm 4-axis OIS dual pixel PDAF -5 MP f/2.4 depth sensor
Functions	HDR	Dual-LED dual-tone flash HDR panorama
Video	1080p@30fps	1080p@30fps
Front camera, selfie	8 MP Single	8 MP Single
Specifications	8 MP f/2.0	Motorized pop-up 8 MP f/2.0

Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for A31, NEX A.
Specification	A31	NEX A
Processor CPU	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)	Octa-core (2x2.2 GHz 360 Gold & 6x1.7 GHz Kryo 360 Silver)
Graphics processor GPU	PowerVR GE8320	Adreno 616
GeekBench 4 Single Core *	Unknown	1855
GeekBench 4 Multi-Core *	Unknown	5940
Antutu 8 score *	105221	Unknown

General specs

General specs — specifications for A31, NEX A.
Specification	A31	NEX A
Release date	2020 February 13	2018 June
Colors	Fantasy White Mystery Black	Black Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	180 EUR	600 EUR
Body build	Glass front plastic back plastic frame	Unknown

Communication and Connectivity

Communication and Connectivity — specifications for A31, NEX A.
Specification	A31	NEX A
SIM card	Dual SIM (Nano-SIM dual stand-by)	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 8(900) 34(2000) 38(2600) 39(1900) 40(2300) 41(2500)
Speed	HSPA 42.2/5.76 Mbps LTE-A	HSPA 42.2/5.76 Mbps LTE-A Cat15 800/150 Mbps
GPRS	Yes	Yes
Edge	Yes	Yes
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
GPS	Yes with A-GPS BDS	Yes with A-GPS BDS GNSS
USB	microUSB 2.0 USB On-The-Go	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	5.0 A2DP LE	5.0 A2DP LE

Music and Audio

Music and Audio — specifications for A31, NEX A.
Specification	A31	NEX A
Radio	FM radio	To be confirmed
Others	480 nits typ. brightness	32-bit/192kHz audio -Active noise cancellation with dedicated mic

Other features

Other features — specifications for A31, NEX A.
Specification	A31	NEX A
Dop	Sensors Fingerprint (rear-mounted) accelerometer proximity compass	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass - Fast battery charging 22W

Oppo A31 vs vivo NEX A

Oppo A31

vivo NEX A

Key differences

Display technology

Weight

Width

Memory variants

Rear camera layout

Release year

Physical size

1. A31

2. NEX A

Weight

1. A31

2. NEX A

Screen size

1. A31

2. NEX A

Memory variants

Practical features

1. A31

2. NEX A

Battery capacity

Recorded battery capacity

1. A31

2. NEX A

Specifications

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