Samsung Galaxy J3 vs Xiaomi Mi 8 Explorer: 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 J3: 39 g lighter

Galaxy J3:

138 g

Mi 8 Explorer:

177 g
Width

Galaxy J3: 3.8 mm narrower

Galaxy J3:

71 mm

Mi 8 Explorer:

74.8 mm
Screen diagonal

Galaxy J3: 1.21 in smaller diagonal

Galaxy J3:

5 in

Mi 8 Explorer:

6.21 in
Rear camera layout

Galaxy J3:

Single

Mi 8 Explorer:

Dual
Height

Galaxy J3: 12.6 mm shorter

Galaxy J3:

142.3 mm

Mi 8 Explorer:

154.9 mm
Release year

Galaxy J3:

2015

Mi 8 Explorer:

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. Galaxy J3

Height:

142.3 mm
Width:

71 mm
Depth:

7.9 mm
2. Mi 8 Explorer

Height:

154.9 mm +12.6 mm versus Galaxy J3
Width:

74.8 mm +3.8 mm versus Galaxy J3
Depth:

7.6 mm

Weight

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

1. Galaxy J3

138 g
2. Mi 8 Explorer

177 g

+39 g versus Galaxy J3

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 J3

Screen diagonal:

5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

68.9 cm²
2. Mi 8 Explorer

Mi 8 Explorer: 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 J3, Mi 8 Explorer, compared at the same storage capacity.
Storage	Galaxy J3	Mi 8 Explorer
128 GB	Unknown	8 GB RAM

Galaxy J3: Original memory entry

8/16 GB · 1.5/2 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. Galaxy J3

NFC:: See details Yes (market dependent)
Headphone jack:: Yes
Memory card support:: See details microSD · up to 256 GB (dedicated slot)

2. Mi 8 Explorer

NFC:: Yes
Headphone jack:: No
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 J3

2600 mAh
2. Mi 8 Explorer

3000 mAh

+400 mAh versus Galaxy J3

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 J32. Mi 8 Explorer

Everyday essentials

Everyday essentials — specifications for Galaxy J3, Mi 8 Explorer.
Specification	Galaxy J3	Mi 8 Explorer
Dimensions (HxWxD)	142.3 Х 71 Х 7.9 mm	154.9 Х 74.8 Х 7.6 mm
Weight	138 g	177 g
Technology	Super AMOLED	Super AMOLED
Screen size	5" inch	6.21" inch
Screen resolution	720 x 1280 px	1080 x 2248 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	8/16 GB 1.5/2 GB RAM	128 GB 8 GB RAM
Memory card support	microSD up to 256 GB (dedicated slot)	No
Battery Capacity is not battery life. No endurance test is implied.	2600 mAh Removable Li-Ion	3000 mAh Non-removable Li-Po
Operating system OS	Android 5.1.1 (Lollipop) or Android 6.0 (Marshmallow) upgradable to 7.1.1 (Nougat)	Android 8.1 (Oreo) upgradable to Android 9.0 (Pie); MIUI 10.1
Chipset	Spreadtrum SC9830 -Exynos 3475 Quad (28 nm) USA	Qualcomm SDM845 Snapdragon 845 (10 nm)
NFC	Yes (market dependent)	Yes
Headphone jack	Yes	No

Display

Display — specifications for Galaxy J3, Mi 8 Explorer.
Specification	Galaxy J3	Mi 8 Explorer
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	68.9 cm2	97.1 cm2
Screen format	16:9 (height:width)	Unknown
Screen to body ratio	68.2%	83.8%
PPI /points per inch/	294 PPI	0 PPI
Screen protection	Asahi Dragontrail Glass	Corning Gorilla Glass 5

Camera and Video

Camera and Video — specifications for Galaxy J3, Mi 8 Explorer.
Specification	Galaxy J3	Mi 8 Explorer
Rear camera, main	8 MP Single	12 MP Dual
Camera specs	8 MP f/2.2 AF -5 MP AF - USA	12 MP f/1.8 1/2.55'' 1.4µm 4-axis OIS dual pixel PDAF -12 MP f/2.4 1/3.4'' 1.0µm AF 2x optical zoom
Functions	LED flash HDR	Dual-LED flash HDR panorama
Video	720p@30fps	1080p@30fps
Front camera, selfie	2 MP Single	20 MP Single
Specifications	2 MP (USA) 5 MP f/2.2 (all other regions)	20 MP f/2.0 0.9μm

Performance

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

Performance — specifications for Galaxy J3, Mi 8 Explorer.
Specification	Galaxy J3	Mi 8 Explorer
Processor CPU	Quad-core 1.5 GHz Cortex-A7 -Quad-core 1.3 GHz Cortex-A7 USA	Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.8 GHz Kryo 385 Silver)
Graphics processor GPU	Mali-400 -Mali-T720 USA	Adreno 630
Antutu 7 score *	24156	Unknown
GeekBench 4 Single Core *	441	Unknown
GeekBench 4 Multi-Core *	1159	Unknown
GeekBench 4 RenderScript *	740	Unknown

General specs

General specs — specifications for Galaxy J3, Mi 8 Explorer.
Specification	Galaxy J3	Mi 8 Explorer
Release date	2015 November	2018 May
Colors	White Black Gold	Black (transparent back)
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	120 EUR	500 EUR
Battery life	Stand by time- Up to 349 h Talking time- Up to 22 h Music play - Up to 77 h	Unknown
Body build	plastic body	Front/back glass aluminum frame (7000 series)

Communication and Connectivity

Communication and Connectivity — specifications for Galaxy J3, Mi 8 Explorer.
Specification	Galaxy J3	Mi 8 Explorer
SIM card	Single SIM (Micro-SIM)Dual SIM (Micro-SIM dual stand-by)Nano-SIM (USA models only)	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 3(1800) 5(850) 7(2600) 8(900) 20(800)	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) 7(2600) 8(900) 12(700) 17(700) 20(800) 34(2000) 38(2600) 39(1900) 40(2300) 41(2500)
Speed	HSPA 42.2/5.76 Mbps LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps LTE-A (4CA) Cat16 1024/150 Mbps
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n Wi-Fi Direct hotspot	Wi-Fi 802.11 a/b/g/n/ac dual-band Wi-Fi Direct DLNA hotspot
GPS	Yes with A-GPS GLONASS	Yes with dual-band A-GPS GLONASS BDS GALILEO QZSS
USB	microUSB 2.0 USB On-The-Go	Type-C 1.0 reversible connector
Bluetooth	4.0/4.1 A2DP LE	5.0 A2DP LE aptX HD
Harmful irradiation	SAR - 1.17 W/kg (head) 1.12 W/kg (body) SAR EU - 0.48 W/kg (head) 0.42 W/kg (body)	Unknown

Music and Audio

Music and Audio — specifications for Galaxy J3, Mi 8 Explorer.
Specification	Galaxy J3	Mi 8 Explorer
Radio	FM radio RDS recording (mark	No
Others	Active noise cancellation with dedicated mic	HDR10 -DCI-P3 Active noise cancellation with dedicated mic

Other features

Other features — specifications for Galaxy J3, Mi 8 Explorer.
Specification	Galaxy J3	Mi 8 Explorer
Dop	Sensors Accelerometer proximity - Versions: J320FN (Europe); J320F (EMEA); J320F/DD (India); J320A (AT&T); J320P (Sprint Virgin Mobile Boost); Galaxy Amp Prime (Cricket); Galaxy J3 V (Verizon); J320M (LATAM); J320G (Asia). Also know	Sensors Face ID fingerprint (under display) accelerometer gyro proximity barometer compass - Fast battery charging (Quick Charge 4.0+) - For China

Samsung Galaxy J3 vs Xiaomi Mi 8 Explorer