Karbonn A7 Star vs verykool s5028 Bolt

Compare recorded specifications, size and practical differences.

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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.

  • Width

    A7 Star: 6.8 mm narrower

    A7 Star:
    66 mm
    s5028 Bolt:
    72.8 mm
  • Screen diagonal

    A7 Star: 0.5 in smaller diagonal

    A7 Star:
    4.5 in
    s5028 Bolt:
    5 in
  • Chipset

    A7 Star:
    Mediatek MT6517
    s5028 Bolt:
    Spreadtrum SC7731C
  • Height

    A7 Star: 31.8 mm shorter

    A7 Star:
    113 mm
    s5028 Bolt:
    144.8 mm
  • Release year

    A7 Star:
    2013
    s5028 Bolt:
    2017

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. 1. A7 Star

    Height:
    113 mm
    Width:
    66 mm
    Depth:
    10.4 mm
    Weight:
    Unknown
  2. 2. s5028 Bolt

    Height:
    144.8 mm +31.8 mm versus A7 Star
    Width:
    72.8 mm +6.8 mm versus A7 Star
    Depth:
    10 mm
    Weight:
    154 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. 1. A7 Star

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. s5028 Bolt

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²

s5028 Bolt has approximately 23.5% more rectangular screen area than A7 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 A7 Star, s5028 Bolt, compared at the same storage capacity.
StorageA7 Stars5028 Bolt
8 GB Unknown 1 GB RAM
A7 Star: Original memory entry

164 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. A7 Star

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

2. s5028 Bolt

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. 1. A7 Star

    1400 mAh

  2. 2. s5028 Bolt

    2000 mAh

    +600 mAh versus A7 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. A7 Star2. s5028 Bolt

Everyday essentials
Everyday essentials — specifications for A7 Star, s5028 Bolt.
SpecificationA7 Stars5028 Bolt
Dimensions (HxWxD)
  • 113 Х 66 Х 10.4 mm
  • 144.8 Х 72.8 Х 10 mm
Weight
  • 0 g
  • 154 g
Technology Unknown
  • TFT
Screen size
  • 4.5" inch
  • 5" inch
Screen resolution
  • 480 x 854 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 164 MB
  • 8 GB
  • 1 GB 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.
  • 1400 mAh
  • Removable Li-Ion
  • 2000 mAh
  • Li-Ion
Operating system OS
  • Android 4.0 (Ice Cream Sandwich)
  • Android 6.0 (Marshmallow)
Chipset
  • Mediatek MT6517
  • Spreadtrum SC7731C
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A7 Star, s5028 Bolt.
SpecificationA7 Stars5028 Bolt
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 55.8 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 74.8%
  • 65.4%
PPI /points per inch/
  • 218 PPI
  • 196 PPI
Camera and Video
Camera and Video — specifications for A7 Star, s5028 Bolt.
SpecificationA7 Stars5028 Bolt
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • 8 MP
  • AF
  • f/2.4
Functions
  • LED flash
  • LED flash
  • panorama
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications Unknown
  • 2 MP
  • f/2.8
Performance
Performance — specifications for A7 Star, s5028 Bolt.
SpecificationA7 Stars5028 Bolt
Processor CPU
  • Dual-core 1.0 GHz Cortex-A9
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • PowerVR SGX531u
  • Mali-400
General specs
General specs — specifications for A7 Star, s5028 Bolt.
SpecificationA7 Stars5028 Bolt
Release date
  • 2013
  • 2017
  • April
Colors
  • white/black
  • Black
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
Unknown
Battery life
  • Stand by time- Up to 135 h Talking time- Up to 5 h
  • Stand by time- Up to 240 h (3G) Talking time- Up to 8 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A7 Star, s5028 Bolt.
SpecificationA7 Stars5028 Bolt
SIM card
  • Dual SIM
  • Dual SIM (Micro-SIM/ Mini-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed Unknown
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • Yes
  • 2.1
  • A2DP
Harmful irradiation
  • SAR EU - 0.99 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for A7 Star, s5028 Bolt.
SpecificationA7 Stars5028 Bolt
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for A7 Star, s5028 Bolt.
SpecificationA7 Stars5028 Bolt
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer