OnePlus 3T vs Oppo A31

Compare recorded specifications, size and practical differences.

OnePlus 3T

Replace 3T

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Oppo A31

Replace A31

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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 technologyOLED versus LCD3T: OLED · A31: LCD
Weight3T: 22 g lighter3T: 158 g · A31: 180 g
Screen diagonal3T: 1 in smaller diagonal3T: 5.5 in · A31: 6.5 in
Memory variantsAt 128 GB storage3T: 6 GB RAM · A31: 4 GB RAM
Rear camera layoutSingle / Triple3T: Single · A31: Triple
Depth3T: 0.9 mm thinner3T: 7.4 mm · A31: 8.3 mm

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.

Front

Side

1. 3T
Height
152.7 mm
Width
74.7 mm
Depth
7.4 mm

Weight
158 g
2. A31
Height
163.9 mm
Width
75.5 mm
Depth
8.3 mm

Weight
180 g

Specifications

Open a section for more detail. Scroll inside a table to keep phone names visible; on narrow screens, swipe sideways or use the arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

Everyday essentials

Everyday essentials
Specification	3T	A31
Dimensions (HxWxD)	152.7 Х 74.7 Х 7.4 mm	163.9 Х 75.5 Х 8.3 mm
Weight	158 g	180 g
Technology	Optic AMOLED	IPS LCD
Screen size	5.5" inch	6.5" inch
Screen resolution	1080 x 1920 px	720 x 1600 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	64/128 GB 6 GB RAM	128GB 4GB RAM
Memory card support	No	microSDXC (dedicated slot)
BatteryCapacity is not battery life. No endurance test is implied.	3400 mAh Non-removable Li-Ion	4230 mAh Non-removable Li-Po
Operating system OS	Android 6.0.1 (Marshmallow) upgradable to Android 8.0 (Oreo); OxygenOS 5.0.4	Android 9.0 (Pie); ColorOS 6.1
Chipset	Qualcomm MSM8996 Snapdragon 821 (14 nm)	Mediatek MT6765V/CB Helio P35 (12nm)
NFC	Yes	Unknown
Headphone jack	Yes	Yes

Display

Display
Specification	3T	A31
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	83.4 cm2	102.0 cm2
Screen format	16:9 (height:width)	20:9 (height:width)
Screen to body ratio	73.1%	82.4%
PPI /points per inch/	401 PPI	270 PPI
Screen protection	Corning Gorilla Glass 4	Unknown

Camera and Video

Camera and Video
Specification	3T	A31
Rear camera, main	16 MP Single	12 MP Triple
Camera specs	16 MP f/2.0 1/2.8'' 1.12µm OIS PDAF	12 MP f/1.8 (wide) PDAF -2 MP f/2.4 27mm (macro) 1/5.0'' 1.75µm -2 MP (depth)
Functions	LED flash panorama HDR	HDR
Video	1080p@30fps	1080p@30fps
Front camera, selfie	16 MP Single	8 MP Single
Specifications	16 MP f/2.0 1/3.1'' 1.0µm	8 MP f/2.0

Performance

Performance
Specification	3T	A31
Processor CPU	Quad-core (2x2.35 GHz Kryo & 2x1.6 GHz Kryo)	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU	Adreno 530	PowerVR GE8320
Antutu 7 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	178923	Unknown
GeekBench 4 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	1800	Unknown
GeekBench 4 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	4117	Unknown
GeekBench 4 RenderScriptLegacy recorded score. Test conditions are unspecified; no new testing is implied.	7474	Unknown
Antutu 8 scoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	Unknown	105221
GeekBench 5 Single CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	335	Unknown
GeekBench 5 Multi-CoreLegacy recorded score. Test conditions are unspecified; no new testing is implied.	783	Unknown

General specs

General specs
Specification	3T	A31
Release date	2016 November	2020 February 13
Colors	Gunmetal soft gold Midnight Black	Fantasy White Mystery Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.	440 EUR	180 EUR
Body build	Front glass aluminum body	Glass front plastic back plastic frame

Communication and Connectivity

Communication and Connectivity
Specification	3T	A31
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 / 1700(AWS) / 1900 / 2100 - North America HSDPA 850 / 900 / 1900 / 2100 - Global model CDMA2000 1xEV-DO - North America -4G - LTE band 1(2100) 2(1900) 4(1700/2100) 5(850) 7(2600) 8(900) 12(700) 17(700) 30(2300) - North America LTE band 1(2100) 3(1800) 20(800) 38(2600) 40(2300) - Global model	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed	HSPA 42.2/5.76 Mbps LTE-A (2CA) Cat6 300/50 Mbps	HSPA 42.2/5.76 Mbps LTE-A
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 a/b/g/n/ac Wi-Fi Direct DLNA hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct hotspot
GPS	Yes with A-GPS GLONASS BDS	Yes with A-GPS BDS
USB	2.0 Type-C 1.0 reversible connector	microUSB 2.0 USB On-The-Go
Bluetooth	4.2 A2DP aptX HD LE	5.0 A2DP LE
Harmful irradiation	SAR - 0.99 W/kg (head) 0.65 W/kg (body)	Unknown

Music and Audio

Music and Audio
Specification	3T	A31
Radio	No	FM radio
Others	Active noise cancellation with dedicated mic	480 nits typ. brightness

Other features

Other features
Specification	3T	A31
Dop	Sensors Fingerprint (front-mounted) accelerometer gyro proximity compass - Fast battery charging (Dash Charge)	Sensors Fingerprint (rear-mounted) accelerometer proximity compass