Oppo A31 vs Samsung Galaxy S8: 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

Galaxy S8:

OLED
Weight

Galaxy S8: 25 g lighter

A31:

180 g

Galaxy S8:

155 g
Width

Galaxy S8: 7.4 mm narrower

A31:

75.5 mm

Galaxy S8:

68.1 mm
Screen diagonal

Galaxy S8: 0.7 in smaller diagonal

A31:

6.5 in

Galaxy S8:

5.8 in
Rear camera layout

A31:

Triple

Galaxy S8:

Single
Height

Galaxy S8: 15 mm shorter

A31:

163.9 mm

Galaxy S8:

148.9 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.

1. A31

Height:

163.9 mm +15 mm versus Galaxy S8
Width:

75.5 mm +7.4 mm versus Galaxy S8
Depth:

8.3 mm
2. Galaxy S8

Height:

148.9 mm
Width:

68.1 mm
Depth:

8 mm

Weight

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

1. A31

180 g

+25 g versus Galaxy S8
2. Galaxy S8

155 g

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.

1. A31

Screen diagonal:

6.5 in

Aspect ratio (height:width):

20:9

Approximate rectangular screen area:

102 cm²
2. Galaxy S8

Screen diagonal:

5.8 in

Aspect ratio (height:width):

18.5:9

Approximate rectangular screen area:

85.4 cm²

A31 has approximately 19.5% more rectangular screen area than Galaxy S8.

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, Galaxy S8, compared at the same storage capacity.
Storage	A31	Galaxy S8
128 GB	4 GB RAM	Unknown

Galaxy S8: Original memory entry

64 GB · 512GB 4GB

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. Galaxy S8

NFC:: Yes
Headphone jack:: Yes
Memory card support:: See details microSD · up to 512 GB (uses SIM 2 slot) - dual SIM model only

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

+1230 mAh versus Galaxy S8
2. Galaxy S8

3000 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. Galaxy S8

Everyday essentials

Everyday essentials — specifications for A31, Galaxy S8.
Specification	A31	Galaxy S8
Dimensions (HxWxD)	163.9 Х 75.5 Х 8.3 mm	148.9 Х 68.1 Х 8 mm
Weight	180 g	155 g
Technology	IPS LCD	Super AMOLED
Screen size	6.5" inch	5.8" inch
Screen resolution	720 x 1600 px	1440 x 2960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	128GB 4GB RAM	64 GB 512GB 4GB
Memory card support	microSDXC (dedicated slot)	microSD up to 512 GB (uses SIM 2 slot) - dual SIM model only
Battery Capacity is not battery life. No endurance test is implied.	4230 mAh Non-removable Li-Po	3000 mAh Non-removable Li-Ion
Operating system OS	Android 9.0 (Pie); ColorOS 6.1	Android 7.0 (Nougat) upgradable to Android 8.0 (Oreo)
Chipset	Mediatek MT6765V/CB Helio P35 (12nm)	Exynos 8895 Octa (10 nm) EMEA -Qualcomm MSM8998 Snapdragon 835 (10 nm) USA & China
NFC	Unknown	Yes
Headphone jack	Yes	Yes

Display

Display — specifications for A31, Galaxy S8.
Specification	A31	Galaxy S8
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	102.0 cm2	84.8 cm2
Screen format	20:9 (height:width)	18.5:9 (height:width)
Screen to body ratio	82.4%	83.6%
PPI /points per inch/	270 PPI	570 PPI
Screen protection	Unknown	Corning Gorilla Glass 5

Camera and Video

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

Camera and Video — specifications for A31, Galaxy S8.
Specification	A31	Galaxy S8
Rear camera, main	12 MP Triple	12 MP Single
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/1.7 26mm (wide) 1/2.55'' 1.4µm OIS dual pixel PDAF
Functions	HDR	Dual video call Auto-HDR
Video	1080p@30fps	1440p@30fps
Front camera, selfie	8 MP Single	8 MP Single
Specifications	8 MP f/2.0	8 MP f/1.7 25mm (wide) 1/3.6'' 1.22µm AF
DxOMark Photo *	Unknown	71
DxOMark Video *	Unknown	75
DxOMark Selfie Score *	Unknown	73

Performance

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

Performance — specifications for A31, Galaxy S8.
Specification	A31	Galaxy S8
Processor CPU	Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)	Octa-core (4x2.3 GHz Mongoose M2 & 4x1.7 GHz Cortex-A53) EMEA -Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo) USA & China
Graphics processor GPU	PowerVR GE8320	Mali-G71 MP20 EMEA -Adreno 540 USA & China
Antutu 7 score *	Unknown	202356
GeekBench 4 Single Core *	Unknown	1763
GeekBench 4 Multi-Core *	Unknown	6028
GeekBench 4 RenderScript *	Unknown	8798
Antutu 8 score *	105221	231907
GeekBench 4 Battery *	Unknown	3410
GeekBench 5 Single Core *	Unknown	340
GeekBench 5 Multi-Core *	Unknown	1454

General specs

General specs — specifications for A31, Galaxy S8.
Specification	A31	Galaxy S8
Release date	2020 February 13	2017 March
Colors	Fantasy White Mystery Black	Midnight Black Orchid Gray Arctic Silver Coral Blue Maple Gold Rose Pink Burgundy Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	180 EUR	390 EUR
Battery life	Unknown	Talking time- Up to 20 h (3G) Music play - Up to 67 h
Body build	Glass front plastic back plastic frame	Front/back glass (Gorilla Glass 5) aluminum frame

Communication and Connectivity

Communication and Connectivity — specifications for A31, Galaxy S8.
Specification	A31	Galaxy S8
SIM card	Dual SIM (Nano-SIM dual stand-by)	Single SIM (Nano-SIM)Hybrid 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 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - 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) 66(1700/2100) 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 (5CA) Cat16 1024/150 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 GLONASS BDS GALILEO
USB	microUSB 2.0 USB On-The-Go	3.1 Type-C 1.0 reversible connector
Bluetooth	5.0 A2DP LE	5.0 A2DP LE aptX
Harmful irradiation	Unknown	SAR - 0.44 W/kg (head) 0.75 W/kg (body) SAR EU - 0.32 W/kg (head) 1.27 W/kg (body)

Music and Audio

Music and Audio — specifications for A31, Galaxy S8.
Specification	A31	Galaxy S8
Radio	FM radio	No
Others	480 nits typ. brightness	HDR10 -3D Touch (home button only) -Always-on display 32-bit/384kHz audio -Active noise cancellation with dedicated mic

Other features

Other features — specifications for A31, Galaxy S8.
Specification	A31	Galaxy S8
Dop	Sensors Fingerprint (rear-mounted) accelerometer proximity compass	Sensors Iris scanner fingerprint (rear-mounted) accelerometer gyro proximity compass barometer heart rate SpO2 - Samsung DeX (desktop experience support) -Fast battery charging (Quick Charge 2.0) -Qi/PMA wireless charging (market dependent) -ANT+ -Bixby natural language commands and dictation - Samsung Pay (Visa MasterCard certified) -IP68 dust/water proof (up to 1.5m for 30 mins) - Versions: G950F (Europe Global Single-SIM); G950FD (Global Dual-SIM); G950U (USA Unlocked); G950A (AT&T); G950P (Sprint); G950T (T-Mobile); G950V (Verizon); G950R4 (US Cellular); G950W (Canada); G950

Oppo A31 vs Samsung Galaxy S8

Oppo A31

Samsung Galaxy S8

Key differences