Samsung Galaxy M31 vs vivo NEX 3: 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.

Weight

Galaxy M31: 26.3 g lighter

Galaxy M31:

191 g

NEX 3:

217.3 g
Width

Galaxy M31: 1 mm narrower

Galaxy M31:

75.1 mm

NEX 3:

76.1 mm
Screen diagonal

Galaxy M31: 0.49 in smaller diagonal

Galaxy M31:

6.4 in

NEX 3:

6.89 in
Chipset

Galaxy M31:

Exynos 9611 (10nm)

NEX 3:

Qualcomm SDM855 Snapdragon 855+ (7 nm)
Depth

Galaxy M31: 0.5 mm thinner

Galaxy M31:

8.9 mm

NEX 3:

9.4 mm
Height

Galaxy M31: 8.2 mm shorter

Galaxy M31:

159.2 mm

NEX 3:

167.4 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. Galaxy M31

Height:

159.2 mm
Width:

75.1 mm
Depth:

8.9 mm
2. NEX 3

Height:

167.4 mm +8.2 mm versus Galaxy M31
Width:

76.1 mm +1 mm versus Galaxy M31
Depth:

9.4 mm +0.5 mm versus Galaxy M31

Weight

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

1. Galaxy M31

191 g
2. NEX 3

217.3 g

+26.3 g versus Galaxy M31

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. Galaxy M31

Screen diagonal:

6.4 in

Aspect ratio (height:width):

19.5:9

Approximate rectangular screen area:

100.5 cm²
2. NEX 3

NEX 3: 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 Galaxy M31, NEX 3, compared at the same storage capacity.
Storage	Galaxy M31	NEX 3
64 GB	6 GB RAM	Unknown
128 GB	6 GB RAM	Unknown

NEX 3: Original memory entry

128GB 8GB RAM · UFS3.0

Practical features

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

1. Galaxy M31

NFC:: See details Yes (market/region dependent)
Headphone jack:: Yes
Memory card support:: See details microSDXC (dedicated slot)

2. NEX 3

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. Galaxy M31

6000 mAh

+1500 mAh versus NEX 3
2. NEX 3

4500 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. Galaxy M312. NEX 3

Everyday essentials

Everyday essentials — specifications for Galaxy M31, NEX 3.
Specification	Galaxy M31	NEX 3
Dimensions (HxWxD)	159.2 Х 75.1 Х 8.9 mm	167.4 Х 76.1 Х 9.4 mm
Weight	191 g	217.3 g
Technology	Super AMOLED	Super AMOLED
Screen size	6.4" inch	6.89" inch
Screen resolution	1080 x 2340 px	1080 x 2256 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	64GB 6GB RAM 128GB 6GB RAM	128GB 8GB RAM UFS3.0
Memory card support	microSDXC (dedicated slot)	No
Battery Capacity is not battery life. No endurance test is implied.	6000 mAh Non-removable Li-Po	4500 mAh Non-removable Li-Po
Operating system OS	Android 10.0; One UI 2.0	Android 9.0 (Pie); Funtouch 9.1
Chipset	Exynos 9611 (10nm)	Qualcomm SDM855 Snapdragon 855+ (7 nm)
NFC	Yes (market/region dependent)	Unknown
Headphone jack	Yes	Yes

Display

Display — specifications for Galaxy M31, NEX 3.
Specification	Galaxy M31	NEX 3
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	100.5 cm2	119.3 cm2
Screen format	19.5:9 (height:width)	Unknown
Screen to body ratio	84.1%	93.6%
PPI /points per inch/	403 PPI	0 PPI
Screen protection	Corning Gorilla Glass 3	Unknown

Camera and Video

Camera and Video — specifications for Galaxy M31, NEX 3.
Specification	Galaxy M31	NEX 3
Rear camera, main	64 MP Triple	64 MP Triple
Camera specs	64 MP f/1.8 26mm (wide) 1/1.72" 0.8µm PDAF -8 MP f/2.2 12mm (ultrawide) 1/4.0" 1.12µm -5 MP f/2.4 25mm (macro) 1/5.0" (depth)	64 MP f/1.8 (wide) 1/1.7'' 0.8µm PDAF -13 MP f/2.5 (telephoto) f/2.2 (ultrawide) PDAF
Functions	HDR	LED flash HDR
Video	2160p@30fps 1080p@30fps	1080p@30fps
Front camera, selfie	32 MP Single	16 MP Single
Specifications	32 MP f/2.0 26mm (wide) 1/2.8'' 0.8µm	Motorized pop-up 16 MP f/2.1

Performance

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

Performance — specifications for Galaxy M31, NEX 3.
Specification	Galaxy M31	NEX 3
Processor CPU	Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)	Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)
Graphics processor GPU	Mali-G72 MP3	Adreno 640 (700 MHz)
Antutu 8 score *	194554	483427

General specs

General specs — specifications for Galaxy M31, NEX 3.
Specification	Galaxy M31	NEX 3
Release date	2020 February 25	2019 September
Colors	Ocean Blue Space Black Red	Liquid Tianhe Deep air streamer
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	200 EUR	640 EUR
Body build	Glass front (Gorilla Glass 3) plastic back plastic frame	Front/back glass aluminum frame

Communication and Connectivity

Communication and Connectivity — specifications for Galaxy M31, NEX 3.
Specification	Galaxy M31	NEX 3
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 / 1900 / 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 / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 12(700) 17(700) 18(800) 19(800) 20(800) 26(850) 28(700) 34(2000) 38(2600) 39(1900) 40(2300) 41(2500)
Speed	HSPA LTE-A	HSPA 42.2/5.76 Mbps LTE-A (5CA) Cat18 1200/150 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 GLONASS GALILEO BDS	Yes with A-GPS GLONASS GALILEO BDS
USB	2.0 Type-C 1.0 reversible connector	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	5.0 A2DP LE	5.0 A2DP LE
Harmful irradiation	SAR - 0.52 W/kg (head) 0.69 W/kg (body) SAR EU - 0.52 W/kg (head) 0.69 W/kg (body)	Unknown

Music and Audio

Music and Audio — specifications for Galaxy M31, NEX 3.
Specification	Galaxy M31	NEX 3
Radio	FM radio RDS recording	No
Others	Unknown	HDR10 32-bit/192kHz audio -Active noise cancellation with dedicated mic

Other features

Other features — specifications for Galaxy M31, NEX 3.
Specification	Galaxy M31	NEX 3
Dop	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass - Fast battery charging 15W - Versions: SM-M315F/DS	Sensors Fingerprint (under display optical) accelerometer gyro proximity compass - Fast battery charging 44W

Samsung Galaxy M31 vs vivo NEX 3