Samsung Galaxy A9 (2018) vs Xiaomi Redmi 2 Prime: 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 A9 (2018):

OLED

Redmi 2 Prime:

LCD
Weight

Redmi 2 Prime: 50 g lighter

Galaxy A9 (2018):

183 g

Redmi 2 Prime:

133 g
Width

Redmi 2 Prime: 10 mm narrower

Galaxy A9 (2018):

77 mm

Redmi 2 Prime:

67 mm
Screen diagonal

Redmi 2 Prime: 1.6 in smaller diagonal

Galaxy A9 (2018):

6.3 in

Redmi 2 Prime:

4.7 in
Chipset

Galaxy A9 (2018):

Qualcomm SDM660 Snapdragon 660 (14 nm)

Redmi 2 Prime:

Qualcomm MSM8916 Snapdragon 410 (28 nm)
Rear camera layout

Galaxy A9 (2018):

Quad

Redmi 2 Prime:

Single

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 A9 (2018)

Height:

162.5 mm +28.5 mm versus Redmi 2 Prime
Width:

77 mm +10 mm versus Redmi 2 Prime
Depth:

7.8 mm
2. Redmi 2 Prime

Height:

134 mm
Width:

67 mm
Depth:

9 mm +1.2 mm versus Galaxy A9 (2018)

Weight

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

1. Galaxy A9 (2018)

183 g

+50 g versus Redmi 2 Prime
2. Redmi 2 Prime

133 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 A9 (2018)

Screen diagonal:

6.3 in

Aspect ratio (height:width):

18.5:9

Approximate rectangular screen area:

100.7 cm²
2. Redmi 2 Prime

Screen diagonal:

4.7 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

60.9 cm²

Galaxy A9 (2018) has approximately 65.4% more rectangular screen area than Redmi 2 Prime.

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 A9 (2018), Redmi 2 Prime, compared at the same storage capacity.
Storage	Galaxy A9 (2018)	Redmi 2 Prime
16 GB	Unknown	2 GB RAM

Galaxy A9 (2018): Original memory entry

64/128 GB · 6/8 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 A9 (2018)

NFC:: Yes
Headphone jack:: Yes
Memory card support:: See details microSD · up to 512 GB (dedicated slot)

2. Redmi 2 Prime

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSD · up to 32 GB (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 A9 (2018)

3800 mAh

+1600 mAh versus Redmi 2 Prime
2. Redmi 2 Prime

2200 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 A9 (2018)2. Redmi 2 Prime

Everyday essentials

Everyday essentials — specifications for Galaxy A9 (2018), Redmi 2 Prime.
Specification	Galaxy A9 (2018)	Redmi 2 Prime
Dimensions (HxWxD)	162.5 Х 77 Х 7.8 mm	134 Х 67 Х 9 mm
Weight	183 g	133 g
Technology	Super AMOLED	IPS LCD
Screen size	6.3" inch	4.7" inch
Screen resolution	1080 x 2220 px	720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	64/128 GB 6/8 GB RAM	16 GB 2 GB RAM
Memory card support	microSD up to 512 GB (dedicated slot)	microSD up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.	3800 mAh Non-removable Li-Ion	2200 mAh Removable Li-Po
Operating system OS	Android 8.0 (Oreo) planned upgrade to Android 9.0 (Pie)	Android 4.4.4 (KitKat) upgradable to 5.1.1 (Lollipop); MIUI 7.2
Chipset	Qualcomm SDM660 Snapdragon 660 (14 nm)	Qualcomm MSM8916 Snapdragon 410 (28 nm)
NFC	Yes	Unknown
Headphone jack	Yes	Yes

Display

Display — specifications for Galaxy A9 (2018), Redmi 2 Prime.
Specification	Galaxy A9 (2018)	Redmi 2 Prime
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	100.2 cm2	60.9 cm2
Screen format	18.5:9 (height:width)	16:9 (height:width)
Screen to body ratio	80.1%	67.8%
PPI /points per inch/	393 PPI	312 PPI
Screen protection	Unknown	To be confirmed

Camera and Video

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

Camera and Video — specifications for Galaxy A9 (2018), Redmi 2 Prime.
Specification	Galaxy A9 (2018)	Redmi 2 Prime
Rear camera, main	24 MP Quad	8 MP Single
Camera specs	24 MP f/1.7 27mm (wide) 1/2.8'' 0.9µm PDAF -8 MP f/2.4 12mm (ultrawide) 1/4.0'' 1.12µm -10 MP f/2.4 52mm (telephoto) 1/3.9'' 1.0µm 2x optical zoom -5 MP f/2.2 24mm (wide) 1/5.0'' 1.12µm depth sensor	8 MP f/2.2 28mm (wide) 1/3.2'' 1.4µm AF
Functions	HDR	LED flash HDR
Video	1080p@30fps	720p
Front camera, selfie	24 MP Single	2 MP Single
Specifications	24 MP f/2.0 27mm (wide) 1/2.8'' 0.9μm	2 MP
DxOMark Main Score *	88	Unknown
DxOMark Photo *	93	Unknown
DxOMark Video *	77	Unknown

Performance

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

Performance — specifications for Galaxy A9 (2018), Redmi 2 Prime.
Specification	Galaxy A9 (2018)	Redmi 2 Prime
Processor CPU	Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)	Quad-core 1.2 GHz Cortex-A53
Graphics processor GPU	Adreno 512	Adreno 306
Antutu 7 score *	142728	Unknown
GeekBench 4 Single Core *	Unknown	758
GeekBench 5 Single Core *	300	Unknown
GeekBench 5 Multi-Core *	1336	Unknown

General specs

General specs — specifications for Galaxy A9 (2018), Redmi 2 Prime.
Specification	Galaxy A9 (2018)	Redmi 2 Prime
Release date	2018 October	2015 August
Colors	Caviar Black Lemonade Blue Bubblegum Pink	White Dark Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	600 EUR	120 EUR
Body build	Unknown	plastic body

Communication and Connectivity

Communication and Connectivity — specifications for Galaxy A9 (2018), Redmi 2 Prime.
Specification	Galaxy A9 (2018)	Redmi 2 Prime
SIM card	Dual SIM (Nano-SIM dual stand-by)	Dual SIM (Micro-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 band 1(2100) 2(1900) 3(1800) 4(1700/2100) 5(850) 7(2600) 8(900) 12(700) 13(700) 17(700) 20(800) 26(850) 28(700) 38(2600) 40(2300) 41(2500) 66(1700/2100)	Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800) 40(2300)
Speed	HSPA 42.2/5.76 Mbps LTE-A (3CA) Cat9 450/50 Mbps	HSPA LTE Cat4 150/50 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 b/g/n Wi-Fi Direct hotspot
GPS	Yes with A-GPS GLONASS BDS GALILEO	Yes with A-GPS GLONASS BDS
USB	2.0 Type-C 1.0 reversible connector	microUSB 2.0 USB Host
Bluetooth	5.0 A2DP LE	4.0 A2DP LE
Harmful irradiation	SAR - 0.27 W/kg (head) 0.84 W/kg (body) SAR EU - 0.35 W/kg (head) 1.59 W/kg (body)	SAR - 1.00 W/kg (head)

Music and Audio

Music and Audio — specifications for Galaxy A9 (2018), Redmi 2 Prime.
Specification	Galaxy A9 (2018)	Redmi 2 Prime
Radio	FM radio	Stereo FM radio
Others	Active noise cancellation with dedicated mic -Dolby Atmos	Active noise cancellation with dedicated mic

Other features

Other features — specifications for Galaxy A9 (2018), Redmi 2 Prime.
Specification	Galaxy A9 (2018)	Redmi 2 Prime
Dop	Sensors Fingerprint (rear-mounted) accelerometer gyro proximity compass - ANT+ -Fast battery charging - Samsung Pay - Also known as Samsung Galaxy A9 Star Pro Samsung Galaxy A9s Versions: SM-A920F/DS (Global); SM-A9200 (China)	Sensors Accelerometer gyro proximity compass - Fast battery charging: 30% in 30 min (Quick Charge 1.0)

Samsung Galaxy A9 (2018) vs Xiaomi Redmi 2 Prime