Samsung Galaxy S8 vs Xiaomi Redmi 4a: 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

Galaxy S8:

OLED

Redmi 4a:

LCD
Weight

Redmi 4a: 23.5 g lighter

Galaxy S8:

155 g

Redmi 4a:

131.5 g
Width

Galaxy S8: 2.3 mm narrower

Galaxy S8:

68.1 mm

Redmi 4a:

70.4 mm
Screen diagonal

Redmi 4a: 0.8 in smaller diagonal

Galaxy S8:

5.8 in

Redmi 4a:

5 in
Depth

Galaxy S8: 0.5 mm thinner

Galaxy S8:

8 mm

Redmi 4a:

8.5 mm
Height

Redmi 4a: 9 mm shorter

Galaxy S8:

148.9 mm

Redmi 4a:

139.9 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. Galaxy S8

Height:

148.9 mm +9 mm versus Redmi 4a
Width:

68.1 mm
Depth:

8 mm
2. Redmi 4a

Height:

139.9 mm
Width:

70.4 mm +2.3 mm versus Galaxy S8
Depth:

8.5 mm +0.5 mm versus Galaxy S8

Weight

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

1. Galaxy S8

155 g

+23.5 g versus Redmi 4a
2. Redmi 4a

131.5 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. Galaxy S8

Screen diagonal:

5.8 in

Aspect ratio (height:width):

18.5:9

Approximate rectangular screen area:

85.4 cm²
2. Redmi 4a

Screen diagonal:

5 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

68.9 cm²

Galaxy S8 has approximately 23.9% more rectangular screen area than Redmi 4a.

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 S8, Redmi 4a, compared at the same storage capacity.
Storage	Galaxy S8	Redmi 4a
16 GB	Unknown	2 GB RAM
32 GB	Unknown	2 GB RAM

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. 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

2. Redmi 4a

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSD · up to 256 GB (uses SIM 2 slot)

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 S8

3000 mAh
2. Redmi 4a

3120 mAh

+120 mAh versus Galaxy S8

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 S82. Redmi 4a

Everyday essentials

Everyday essentials — specifications for Galaxy S8, Redmi 4a.
Specification	Galaxy S8	Redmi 4a
Dimensions (HxWxD)	148.9 Х 68.1 Х 8 mm	139.9 Х 70.4 Х 8.5 mm
Weight	155 g	131.5 g
Technology	Super AMOLED	IPS LCD
Screen size	5.8" inch	5" inch
Screen resolution	1440 x 2960 px	720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	64 GB 512GB 4GB	16/32 GB 2 GB RAM
Memory card support	microSD up to 512 GB (uses SIM 2 slot) - dual SIM model only	microSD up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.	3000 mAh Non-removable Li-Ion	3120 mAh Non-removable Li-Ion
Operating system OS	Android 7.0 (Nougat) upgradable to Android 8.0 (Oreo)	Android 6.0.1 (Marshmallow); MIUI 10
Chipset	Exynos 8895 Octa (10 nm) EMEA -Qualcomm MSM8998 Snapdragon 835 (10 nm) USA & China	Qualcomm MSM8917 Snapdragon 425 (28 nm)
NFC	Yes	Unknown
Headphone jack	Yes	Yes

Display

Display — specifications for Galaxy S8, Redmi 4a.
Specification	Galaxy S8	Redmi 4a
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	84.8 cm2	68.0 cm2
Screen format	18.5:9 (height:width)	16:9 (height:width)
Screen to body ratio	83.6%	69.0%
PPI /points per inch/	570 PPI	296 PPI
Screen protection	Corning Gorilla Glass 5	Unknown

Camera and Video

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

Camera and Video — specifications for Galaxy S8, Redmi 4a.
Specification	Galaxy S8	Redmi 4a
Rear camera, main	12 MP Single	13 MP Single
Camera specs	12 MP f/1.7 26mm (wide) 1/2.55'' 1.4µm OIS dual pixel PDAF	13 MP AF f/2.2
Functions	Dual video call Auto-HDR	LED flash HDR panorama
Video	1440p@30fps	1080p@30fps
Front camera, selfie	8 MP Single	5 MP Single
Specifications	8 MP f/1.7 25mm (wide) 1/3.6'' 1.22µm AF	5 MP f/2.2
DxOMark Photo *	71	Unknown
DxOMark Video *	75	Unknown
DxOMark Selfie Score *	73	Unknown

Performance

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

Performance — specifications for Galaxy S8, Redmi 4a.
Specification	Galaxy S8	Redmi 4a
Processor CPU	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	Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU	Mali-G71 MP20 EMEA -Adreno 540 USA & China	Adreno 308
Antutu 7 score *	202356	43152
GeekBench 4 Single Core *	1763	664
GeekBench 4 Multi-Core *	6028	1740
GeekBench 4 RenderScript *	8798	1350
Antutu 8 score *	231907	Unknown
GeekBench 4 Battery *	3410	Unknown
GeekBench 5 Single Core *	340	123
GeekBench 5 Multi-Core *	1454	396

General specs

General specs — specifications for Galaxy S8, Redmi 4a.
Specification	Galaxy S8	Redmi 4a
Release date	2017 March	2016 November
Colors	Midnight Black Orchid Gray Arctic Silver Coral Blue Maple Gold Rose Pink Burgundy Red	Gold Rose Gold Dark Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	390 EUR	110 EUR
Battery life	Talking time- Up to 20 h (3G) Music play - Up to 67 h	Unknown
Body build	Front/back glass (Gorilla Glass 5) aluminum frame	plastic body

Communication and Connectivity

Communication and Connectivity — specifications for Galaxy S8, Redmi 4a.
Specification	Galaxy S8	Redmi 4a
SIM card	Single SIM (Nano-SIM)Hybrid Dual SIM (Nano-SIM dual stand-by)	Hybrid Dual SIM (Nano-SIM/ Micro-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 / 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)	Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100) 3(1800) 4(1700/2100) 5(850) 7(2600) 20(800) 38(2600) 40(2300)
Speed	HSPA 42.2/5.76 Mbps LTE-A (5CA) Cat16 1024/150 Mbps	HSPA LTE
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 b/g/n Wi-Fi Direct hotspot
GPS	Yes with A-GPS GLONASS BDS GALILEO	Yes with A-GPS GLONASS BDS
USB	3.1 Type-C 1.0 reversible connector	microUSB 2.0
Bluetooth	5.0 A2DP LE aptX	4.1 A2DP LE
Harmful irradiation	SAR - 0.44 W/kg (head) 0.75 W/kg (body) SAR EU - 0.32 W/kg (head) 1.27 W/kg (body)	Unknown

Music and Audio

Music and Audio — specifications for Galaxy S8, Redmi 4a.
Specification	Galaxy S8	Redmi 4a
Radio	No	FM radio
Others	HDR10 -3D Touch (home button only) -Always-on display 32-bit/384kHz audio -Active noise cancellation with dedicated mic	Active noise cancellation with dedicated mic

Other features

Other features — specifications for Galaxy S8, Redmi 4a.
Specification	Galaxy S8	Redmi 4a
Dop	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	Sensors Accelerometer gyro proximity Infrared port

Samsung Galaxy S8 vs Xiaomi Redmi 4a

Samsung Galaxy S8

Xiaomi Redmi 4a

Key differences