Karbonn Smart A12 Star vs Sharp Pi: 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.

Screen diagonal

Smart A12 Star: 1.2 in smaller diagonal

Smart A12 Star:

4 in

Pi:

5.2 in
Rear camera layout

Smart A12 Star:

Single

Pi:

Dual
Release year

Smart A12 Star:

2014

Pi:

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. Smart A12 Star

Height:

124.2 mm
Width:

64.2 mm
Depth:

10.1 mm

Weight:

130 g
2. Pi

Height:

Unknown
Width:

Unknown
Depth:

Unknown

Weight:

Unknown

Unavailable dimensions are omitted from the drawing.

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. Pi

Screen diagonal:

5.2 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

74.5 cm²

Pi has approximately 63.7% 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, Pi, compared at the same storage capacity.
Storage	Smart A12 Star	Pi
16 GB	Unknown	2 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. Pi

NFC:: Unknown
Headphone jack:: No
Memory card support:: See details microSD · up to 128 GB

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. Pi

3000 mAh

+1600 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. Pi

Everyday essentials

Everyday essentials — specifications for Smart A12 Star, Pi.
Specification	Smart A12 Star	Pi
Dimensions (HxWxD)	124.2 Х 64.2 Х 10.1 mm	Х Х mm
Weight	130 g	0 g
Technology	IPS LCD	IPS LCD
Screen size	4" inch	5.2" inch
Screen resolution	480 x 800 px	720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	4 GB 512 MB RAM	16 GB 2 GB RAM
Memory card support	microSD up to 32 GB	microSD up to 128 GB
Battery Capacity is not battery life. No endurance test is implied.	1400 mAh Li-Ion	3000 mAh Li-Ion
Operating system OS	Android 4.4.2 (KitKat)	Android 7.0 (Nougat)
Chipset	Unknown	Mediatek MT6737M (28 nm)
Headphone jack	Yes	No

Display

Display — specifications for Smart A12 Star, Pi.
Specification	Smart A12 Star	Pi
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	16M	16M
Screen area	45.5 cm2	74.5 cm2
Screen format	5:3 (height:width)	16:9 (height:width)
Screen to body ratio	57.1%	Unknown
PPI /points per inch/	233 PPI	282 PPI
Screen protection	Unknown	Scratch-resistant glass

Camera and Video

Camera and Video — specifications for Smart A12 Star, Pi.
Specification	Smart A12 Star	Pi
Rear camera, main	5 MP Single	13 MP Dual
Camera specs	5 MP	13 MP f/2.2 AF -2 MP depth sensor
Functions	LED flash	LED flash panorama HDR
Video	Yes	1080p@30fps
Front camera, selfie	0.3 MP Single	8 MP Single
Specifications	VGA	8 MP

Performance

Performance — specifications for Smart A12 Star, Pi.
Specification	Smart A12 Star	Pi
Processor CPU	Dual-core 1.2 GHz	Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU	Unknown	Mali-T720

General specs

General specs — specifications for Smart A12 Star, Pi.
Specification	Smart A12 Star	Pi
Release date	2014 July	2018 February
Colors	Black	White/Gold Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	50 EUR	110 EUR
Battery life	Stand by time- Up to 300 h	Unknown

Communication and Connectivity

Communication and Connectivity — specifications for Smart A12 Star, Pi.
Specification	Smart A12 Star	Pi
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) 7(2600) 8(900) 40(2300)
Speed	HSPA	HSPA LTE Cat4 150/50 Mbps
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
USB	microUSB 2.0	microUSB 2.0 USB On-The-Go
Bluetooth	2.0	4.0 A2DP
Harmful irradiation	SAR EU - 0.79 W/kg (head)	Unknown

Music and Audio

Music and Audio — specifications for Smart A12 Star, Pi.
Specification	Smart A12 Star	Pi
Radio	FM radio	To be confirmed
Others	Unknown	Active noise cancellation with dedicated mic

Other features

Other features — specifications for Smart A12 Star, Pi.
Specification	Smart A12 Star	Pi
Dop	Sensors Accelerometer proximity	Sensors Fingerprint (front-mounted) accelerometer proximity - For Indonesia Vietnam

Karbonn Smart A12 Star vs Sharp Pi