Micromax A28 Bolt vs Plum Sync 4.0: 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

A28 Bolt: 8 g lighter

A28 Bolt:

89 g

Sync 4.0:

97 g
Width

A28 Bolt: 1.1 mm narrower

A28 Bolt:

62.5 mm

Sync 4.0:

63.6 mm
Screen diagonal

A28 Bolt: 0.5 in smaller diagonal

A28 Bolt:

3.5 in

Sync 4.0:

4 in
Depth

Sync 4.0: 2.7 mm thinner

A28 Bolt:

12.5 mm

Sync 4.0:

9.8 mm
Height

A28 Bolt: 3.5 mm shorter

A28 Bolt:

116.9 mm

Sync 4.0:

120.4 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. A28 Bolt

Height:

116.9 mm
Width:

62.5 mm
Depth:

12.5 mm +2.7 mm versus Sync 4.0
2. Sync 4.0

Height:

120.4 mm +3.5 mm versus A28 Bolt
Width:

63.6 mm +1.1 mm versus A28 Bolt
Depth:

9.8 mm

Weight

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

1. A28 Bolt

89 g
2. Sync 4.0

97 g

+8 g versus A28 Bolt

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. A28 Bolt

Screen diagonal:

3.5 in

Aspect ratio (height:width):

3:2

Approximate rectangular screen area:

36.5 cm²
2. Sync 4.0

Screen diagonal:

4 in

Aspect ratio (height:width):

16:9

Approximate rectangular screen area:

44.1 cm²

Sync 4.0 has approximately 20.9% more rectangular screen area than A28 Bolt.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

A28 Bolt: Original memory entry

512 MB · 256 MB RAM

Sync 4.0: Original memory entry

512 MB · 256 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. A28 Bolt

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

2. Sync 4.0

NFC:: Unknown
Headphone jack:: Yes
Memory card support:: See details microSD · up to 32 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. A28 Bolt

1500 mAh

+300 mAh versus Sync 4.0
2. Sync 4.0

1200 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. A28 Bolt2. Sync 4.0

Everyday essentials

Everyday essentials — specifications for A28 Bolt, Sync 4.0.
Specification	A28 Bolt	Sync 4.0
Dimensions (HxWxD)	116.9 Х 62.5 Х 12.5 mm	120.4 Х 63.6 Х 9.8 mm
Weight	89 g	97 g
Technology	TFT	TFT
Screen size	3.5" inch	4" inch
Screen resolution	320 x 480 px	480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.	512 MB 256 MB RAM	512 MB 256 MB RAM
Memory card support	microSD up to 32 GB (dedicated slot)	microSD up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.	1500 mAh Removable Li-Ion	1200 mAh Removable Li-Ion
Operating system OS	Android 2.3 (Gingerbread)	Android 4.4 (KitKat)
Chipset	Unknown	Mediatek MT6572M (28 nm)
Headphone jack	Yes	Yes

Display

Display — specifications for A28 Bolt, Sync 4.0.
Specification	A28 Bolt	Sync 4.0
Touchscreen	capacitive touchscreen	capacitive touchscreen
Display colors	65K	16M
Screen area	36.5 cm2	44.1 cm2
Screen format	3:2 (height:width)	16:9 (height:width)
Screen to body ratio	49.9%	57.6%
PPI /points per inch/	165 PPI	245 PPI

Camera and Video

Camera and Video — specifications for A28 Bolt, Sync 4.0.
Specification	A28 Bolt	Sync 4.0
Rear camera, main	0.3 MP Single	5 MP Single
Camera specs	Unknown	5 MP AF
Functions	Unknown	Face detection
Video	320p	720p@30fps
Front camera, selfie	0.3 MP Single	1.3 MP Single
Specifications	VGA	1.3 MP

Performance

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

Performance — specifications for A28 Bolt, Sync 4.0.
Specification	A28 Bolt	Sync 4.0
Processor CPU	1.0 GHz Cortex-A5	Dual-core 1.2 GHz Cortex-A7
Graphics processor GPU	Mali-300	Mali-400
Antutu 7 score *	Unknown	5527

General specs

General specs — specifications for A28 Bolt, Sync 4.0.
Specification	A28 Bolt	Sync 4.0
Release date	2014	2014 May
Colors	Black	Black White Red Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.	40 EUR	Unknown
Battery life	Stand by time- Up to 260 h Talking time- Up to 4 h	Stand by time- Up to 760 h Talking time- Up to 14 h

Communication and Connectivity

Communication and Connectivity — specifications for A28 Bolt, Sync 4.0.
Specification	A28 Bolt	Sync 4.0
SIM card	Dual SIM (Mini-SIM)	Dual SIM
GPRS	Class 12	Class 12
Edge	Yes	Class 12
Wi-Fi	Wi-Fi 802.11 b/g/n	Wi-Fi 802.11 b/g/n hotspot
GPS	No	Yes with A-GPS
USB	microUSB	microUSB 2.0
Bluetooth	2.1 A2DP	4.0 A2DP

Music and Audio

Music and Audio — specifications for A28 Bolt, Sync 4.0.
Specification	A28 Bolt	Sync 4.0
Radio	FM radio recording	FM radio

Other features

Other features — specifications for A28 Bolt, Sync 4.0.
Specification	A28 Bolt	Sync 4.0
Dop	Unknown	Sensors Accelerometer gyro proximity - Also known as Plum Sync 4.0 X400

Micromax A28 Bolt vs Plum Sync 4.0