Samsung Galaxy S8 vs Xiaomi Redmi Note 9S: 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 Note 9S:

LCD
Weight

Galaxy S8: 54 g lighter

Galaxy S8:

155 g

Redmi Note 9S:

209 g
Width

Galaxy S8: 8.6 mm narrower

Galaxy S8:

68.1 mm

Redmi Note 9S:

76.7 mm
Screen diagonal

Galaxy S8: 0.87 in smaller diagonal

Galaxy S8:

5.8 in

Redmi Note 9S:

6.67 in
Rear camera layout

Galaxy S8:

Single

Redmi Note 9S:

Quad
Depth

Galaxy S8: 0.8 mm thinner

Galaxy S8:

8 mm

Redmi Note 9S:

8.8 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
Width:

68.1 mm
Depth:

8 mm
2. Redmi Note 9S

Height:

165.8 mm +16.9 mm versus Galaxy S8
Width:

76.7 mm +8.6 mm versus Galaxy S8
Depth:

8.8 mm +0.8 mm versus Galaxy S8

Weight

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

1. Galaxy S8

155 g
2. Redmi Note 9S

209 g

+54 g versus Galaxy S8

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 Note 9S

Screen diagonal:

6.67 in

Aspect ratio (height:width):

20:9

Approximate rectangular screen area:

107.4 cm²

Redmi Note 9S has approximately 25.8% 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 Galaxy S8, Redmi Note 9S, compared at the same storage capacity.
Storage	Galaxy S8	Redmi Note 9S
64 GB	Unknown	4 GB RAM
128 GB	Unknown	6 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 Note 9S

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSDXC (dedicated 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 Note 9S

5020 mAh

+2020 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 Note 9S

Everyday essentials

Everyday essentials — specifications for Galaxy S8, Redmi Note 9S.
Specification	Galaxy S8	Redmi Note 9S
Dimensions (HxWxD)	148.9 Х 68.1 Х 8 mm	165.8 Х 76.7 Х 8.8 mm
Weight	155 g	209 g
Technology	Super AMOLED	IPS LCD
Screen size	5.8" inch	6.67" inch
Screen resolution	1440 x 2960 px	1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	64 GB 512GB 4GB	64GB 4GB RAM 128GB 6GB RAM
Memory card support	microSD up to 512 GB (uses SIM 2 slot) - dual SIM model only	microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.	3000 mAh Non-removable Li-Ion	5020 mAh Non-removable Li-Po
Operating system OS	Android 7.0 (Nougat) upgradable to Android 8.0 (Oreo)	Android 10.0; MIUI 11
Chipset	Exynos 8895 Octa (10 nm) EMEA -Qualcomm MSM8998 Snapdragon 835 (10 nm) USA & China	Qualcomm SM7125 Snapdragon 720G (8 nm)
NFC	Yes	Unknown
Headphone jack	Yes	Yes

Display

Display — specifications for Galaxy S8, Redmi Note 9S.
Specification	Galaxy S8	Redmi Note 9S
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	84.8 cm2	107.4 cm2
Screen format	18.5:9 (height:width)	20:9 (height:width)
Screen to body ratio	83.6%	84.5%
PPI /points per inch/	570 PPI	395 PPI
Screen protection	Corning Gorilla Glass 5	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 Galaxy S8, Redmi Note 9S.
Specification	Galaxy S8	Redmi Note 9S
Rear camera, main	12 MP Single	48 MP Quad
Camera specs	12 MP f/1.7 26mm (wide) 1/2.55'' 1.4µm OIS dual pixel PDAF	48 MP f/1.8 26mm (wide) 1/2.0'' 0.8µm PDAF -8 MP f/2.2 13mm (ultrawide) 1/4.0'' 1.12µm -5 MP f/2.4 (macro) 1.12µm -2 MP (depth)
Functions	Dual video call Auto-HDR	HDR panorama
Video	1440p@30fps	1080p@30fps
Front camera, selfie	8 MP Single	16 MP Single
Specifications	8 MP f/1.7 25mm (wide) 1/3.6'' 1.22µm AF	16 MP f/2.5 (wide) 1.0µm
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 Note 9S.
Specification	Galaxy S8	Redmi Note 9S
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	Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU	Mali-G71 MP20 EMEA -Adreno 540 USA & China	Adreno 618
Antutu 7 score *	202356	Unknown
GeekBench 4 Single Core *	1763	Unknown
GeekBench 4 Multi-Core *	6028	Unknown
GeekBench 4 RenderScript *	8798	Unknown
Antutu 8 score *	231907	Unknown
GeekBench 4 Battery *	3410	Unknown
GeekBench 5 Single Core *	340	Unknown
GeekBench 5 Multi-Core *	1454	Unknown

General specs

General specs — specifications for Galaxy S8, Redmi Note 9S.
Specification	Galaxy S8	Redmi Note 9S
Release date	2017 March	2020 March 23
Colors	Midnight Black Orchid Gray Arctic Silver Coral Blue Maple Gold Rose Pink Burgundy Red	Aurora Blue Glacier white Interstellar Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	390 EUR	$ 199
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	Glass front (Gorilla Glass 5) glass back (Gorilla Glass 5) plastic frame

Communication and Connectivity

Communication and Connectivity — specifications for Galaxy S8, Redmi Note 9S.
Specification	Galaxy S8	Redmi Note 9S
SIM card	Single SIM (Nano-SIM)Hybrid 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 (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 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 20(800) 28(700) 38(2600) 40(2300)
Speed	HSPA 42.2/5.76 Mbps LTE-A (5CA) Cat16 1024/150 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 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 BDS GALILEO	Yes with A-GPS GLONASS GALILEO BDS
USB	3.1 Type-C 1.0 reversible connector	2.0 Type-C 1.0 reversible connector
Bluetooth	5.0 A2DP LE aptX	5.0 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 Note 9S.
Specification	Galaxy S8	Redmi Note 9S
Radio	No	FM radio recording
Others	HDR10 -3D Touch (home button only) -Always-on display 32-bit/384kHz audio -Active noise cancellation with dedicated mic	450 nits typ. brightness (advertised)

Other features

Other features — specifications for Galaxy S8, Redmi Note 9S.
Specification	Galaxy S8	Redmi Note 9S
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 Fingerprint (side-mounted) accelerometer gyro proximity compass Infrared port - Fast charging 18W - Splash-proof

Samsung Galaxy S8 vs Xiaomi Redmi Note 9S

Samsung Galaxy S8

Xiaomi Redmi Note 9S

Key differences