Celkon A9 Dual vs verykool s5029 Bolt Pro

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.

  • Weight

    A9 Dual: 29 g lighter

    A9 Dual:
    116 g
    s5029 Bolt Pro:
    145 g
  • Width

    A9 Dual: 8.1 mm narrower

    A9 Dual:
    63.9 mm
    s5029 Bolt Pro:
    72 mm
  • Screen diagonal

    A9 Dual: 1.5 in smaller diagonal

    A9 Dual:
    3.5 in
    s5029 Bolt Pro:
    5 in
  • Depth

    s5029 Bolt Pro: 1.1 mm thinner

    A9 Dual:
    10.6 mm
    s5029 Bolt Pro:
    9.5 mm
  • Height

    A9 Dual: 24.5 mm shorter

    A9 Dual:
    120.5 mm
    s5029 Bolt Pro:
    145 mm
  • Release year

    A9 Dual:
    2014
    s5029 Bolt Pro:
    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. A9 Dual

    Height:
    120.5 mm
    Width:
    63.9 mm
    Depth:
    10.6 mm +1.1 mm versus s5029 Bolt Pro
  2. 2. s5029 Bolt Pro

    Height:
    145 mm +24.5 mm versus A9 Dual
    Width:
    72 mm +8.1 mm versus A9 Dual
    Depth:
    9.5 mm

Weight

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

  1. 1. A9 Dual

    116 g

  2. 2. s5029 Bolt Pro

    145 g

    +29 g versus A9 Dual

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. A9 Dual

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. s5029 Bolt Pro

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

s5029 Bolt Pro has approximately 88.9% more rectangular screen area than A9 Dual.

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 A9 Dual, s5029 Bolt Pro, compared at the same storage capacity.
StorageA9 Duals5029 Bolt Pro
8 GB Unknown 1 GB RAM
A9 Dual: 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. A9 Dual

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

2. s5029 Bolt Pro

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. A9 Dual

    1350 mAh

  2. 2. s5029 Bolt Pro

    2000 mAh

    +650 mAh versus A9 Dual

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. A9 Dual2. s5029 Bolt Pro

Everyday essentials
Everyday essentials — specifications for A9 Dual, s5029 Bolt Pro.
SpecificationA9 Duals5029 Bolt Pro
Dimensions (HxWxD)
  • 120.5 Х 63.9 Х 10.6 mm
  • 145 Х 72 Х 9.5 mm
Weight
  • 116 g
  • 145 g
Technology
  • TFT
  • TFT
Screen size
  • 3.5" inch
  • 5" 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
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1350 mAh
  • Li-Ion
  • 2000 mAh
  • Li-Ion
Operating system OS
  • Android 4.2.2 (Jelly Bean)
  • Android 7.0 (Nougat)
Chipset Unknown
  • Mediatek MT6580 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A9 Dual, s5029 Bolt Pro.
SpecificationA9 Duals5029 Bolt Pro
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 36.5 cm2
  • 68.9 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 47.4%
  • 66.0%
PPI /points per inch/
  • 165 PPI
  • 196 PPI
Screen protection Unknown
  • Scratch-resistant glass
Camera and Video
Camera and Video — specifications for A9 Dual, s5029 Bolt Pro.
SpecificationA9 Duals5029 Bolt Pro
Rear camera, main
  • 2 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 2 MP
  • 8 MP
Functions Unknown
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 5 MP
  • Single
Specifications
  • VGA
  • 5 MP
Performance
Performance — specifications for A9 Dual, s5029 Bolt Pro.
SpecificationA9 Duals5029 Bolt Pro
Processor CPU
  • Dual-core 1.0 GHz
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU Unknown
  • Mali-400MP2
General specs
General specs — specifications for A9 Dual, s5029 Bolt Pro.
SpecificationA9 Duals5029 Bolt Pro
Release date
  • 2014
  • 2017
  • November
Colors
  • White
  • Black
  • Black
  • Gold
  • Blue
Battery life
  • Stand by time- Up to 240 h Talking time- Up to 3 h 20 min
  • Stand by time- Up to 240 h (3G) Talking time- Up to 5 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A9 Dual, s5029 Bolt Pro.
SpecificationA9 Duals5029 Bolt Pro
SIM card
  • Dual SIM
  • Dual SIM (Micro-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
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.61 W/kg (head) 0.69 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A9 Dual, s5029 Bolt Pro.
SpecificationA9 Duals5029 Bolt Pro
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for A9 Dual, s5029 Bolt Pro.
SpecificationA9 Duals5029 Bolt Pro
Dop
  • Sensors Accelerometer
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity