Karbonn Smart A12 Star vs Xiaomi Redmi 8: 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

Smart A12 Star: 58 g lighter

Smart A12 Star:

130 g

Redmi 8:

188 g
Width

Smart A12 Star: 11.2 mm narrower

Smart A12 Star:

64.2 mm

Redmi 8:

75.4 mm
Screen diagonal

Smart A12 Star: 2.22 in smaller diagonal

Smart A12 Star:

4 in

Redmi 8:

6.22 in
Depth

Redmi 8: 0.7 mm thinner

Smart A12 Star:

10.1 mm

Redmi 8:

9.4 mm
Height

Smart A12 Star: 32.3 mm shorter

Smart A12 Star:

124.2 mm

Redmi 8:

156.5 mm
Release year

Smart A12 Star:

2014

Redmi 8:

2019

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. Smart A12 Star

Height:

124.2 mm
Width:

64.2 mm
Depth:

10.1 mm +0.7 mm versus Redmi 8
2. Redmi 8

Height:

156.5 mm +32.3 mm versus Smart A12 Star
Width:

75.4 mm +11.2 mm versus Smart A12 Star
Depth:

9.4 mm

Weight

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

1. Smart A12 Star

130 g
2. Redmi 8

188 g

+58 g versus Smart A12 Star

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. Smart A12 Star

Screen diagonal:

4 in

Aspect ratio (height:width):

5:3

Approximate rectangular screen area:

45.5 cm²
2. Redmi 8

Screen diagonal:

6.22 in

Aspect ratio (height:width):

19:9

Approximate rectangular screen area:

96.6 cm²

Redmi 8 has approximately 112% more rectangular screen area than Smart A12 Star.

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 Smart A12 Star, Redmi 8, compared at the same storage capacity.
Storage	Smart A12 Star	Redmi 8
32 GB	Unknown	3 GB RAM
64 GB	Unknown	4 GB RAM

Smart A12 Star: Original memory entry

4 GB · 512 MB 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. Smart A12 Star

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

2. Redmi 8

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSD · up to 512 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. Smart A12 Star

1400 mAh
2. Redmi 8

5000 mAh

+3600 mAh versus Smart A12 Star

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. Smart A12 Star2. Redmi 8

Everyday essentials

Everyday essentials — specifications for Smart A12 Star, Redmi 8.
Specification	Smart A12 Star	Redmi 8
Dimensions (HxWxD)	124.2 Х 64.2 Х 10.1 mm	156.5 Х 75.4 Х 9.4 mm
Weight	130 g	188 g
Technology	IPS LCD	IPS LCD
Screen size	4" inch	6.22" inch
Screen resolution	480 x 800 px	720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	4 GB 512 MB RAM	32GB 3GB RAM 64GB 4GB RAM
Memory card support	microSD up to 32 GB	microSD up to 512 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.	1400 mAh Li-Ion	5000 mAh Non-removable Li-Po
Operating system OS	Android 4.4.2 (KitKat)	Android 9.0 (Pie)
Chipset	Unknown	Qualcomm SDM439 Snapdragon 439 (12 nm)
Headphone jack	Yes	Yes

Display

Display — specifications for Smart A12 Star, Redmi 8.
Specification	Smart A12 Star	Redmi 8
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	45.5 cm2	96.6 cm2
Screen format	5:3 (height:width)	19:9 (height:width)
Screen to body ratio	57.1%	81.8%
PPI /points per inch/	233 PPI	270 PPI
Screen protection	Unknown	Corning Gorilla Glass 5

Camera and Video

Camera and Video — specifications for Smart A12 Star, Redmi 8.
Specification	Smart A12 Star	Redmi 8
Rear camera, main	5 MP Single	12 MP Single
Camera specs	5 MP	12 MP f/1.8 1/2.55'' 1.4µm Dual Pixel PDAF -2 MP depth sensor
Functions	LED flash	HDR
Video	Yes	1080p@30fps
Front camera, selfie	0.3 MP Single	8 MP Single
Specifications	VGA	8 MP f/2.0 1.12µm

Performance

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

Performance — specifications for Smart A12 Star, Redmi 8.
Specification	Smart A12 Star	Redmi 8
Processor CPU	Dual-core 1.2 GHz	Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53)
Graphics processor GPU	Unknown	Adreno 505
Antutu 7 score *	Unknown	83198
Antutu 8 score *	Unknown	99402
GeekBench 5 Single Core *	Unknown	177
GeekBench 5 Multi-Core *	Unknown	822

General specs

General specs — specifications for Smart A12 Star, Redmi 8.
Specification	Smart A12 Star	Redmi 8
Release date	2014 July	2019 October
Colors	Black	Onyx Black Ruby Red Sapphire Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	50 EUR	100 EUR
Battery life	Stand by time- Up to 300 h	Unknown

Communication and Connectivity

Communication and Connectivity — specifications for Smart A12 Star, Redmi 8.
Specification	Smart A12 Star	Redmi 8
SIM card	Dual SIM (Micro-SIM dual stand-by)	Dual SIM (Nano-SIM dual stand-by)
Network	Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2	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) 5(850) 8(900) 40(2300) 41(2500)
Speed	HSPA	HSPA LTE-A
GPRS	Yes	Yes
Edge	Yes	Yes
Wi-Fi	Wi-Fi 802.11 b/g/n hotspot	Wi-Fi 802.11 b/g/n Wi-Fi Direct hotspot
GPS	Yes with A-GPS	Yes with A-GPS GLONASS GALILEO BDS
USB	microUSB 2.0	2.0 Type-C 1.0 reversible connector USB On-The-Go
Bluetooth	2.0	4.2 A2DP LE
Harmful irradiation	SAR EU - 0.79 W/kg (head)	SAR - 0.34 W/kg (head) 1.00 W/kg (body)

Music and Audio

Music and Audio — specifications for Smart A12 Star, Redmi 8.
Specification	Smart A12 Star	Redmi 8
Radio	FM radio	Wireless FM radio (no wired he
Others	Unknown	Active noise cancellation with dedicated mic

Other features

Other features — specifications for Smart A12 Star, Redmi 8.
Specification	Smart A12 Star	Redmi 8
Dop	Sensors Accelerometer proximity	Sensors Fingerprint (rear-mounted) accelerometer proximity compass Infrared port - Fast battery charging 18W - Splash resistant

Karbonn Smart A12 Star vs Xiaomi Redmi 8