Micromax Bolt A51 vs Sonim XP7

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

    Bolt A51: 172 g lighter

    Bolt A51:
    118 g
    XP7:
    290 g
  • Width

    Bolt A51: 9.6 mm narrower

    Bolt A51:
    62.5 mm
    XP7:
    72.1 mm
  • Screen diagonal

    Bolt A51: 0.5 in smaller diagonal

    Bolt A51:
    3.5 in
    XP7:
    4 in
  • Depth

    Bolt A51: 8 mm thinner

    Bolt A51:
    12.8 mm
    XP7:
    20.8 mm
  • Height

    Bolt A51: 18.5 mm shorter

    Bolt A51:
    118.5 mm
    XP7:
    137 mm
  • Release year

    Bolt A51:
    2013
    XP7:
    2014

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. Bolt A51

    Height:
    118.5 mm
    Width:
    62.5 mm
    Depth:
    12.8 mm
  2. 2. XP7

    Height:
    137 mm +18.5 mm versus Bolt A51
    Width:
    72.1 mm +9.6 mm versus Bolt A51
    Depth:
    20.8 mm +8 mm versus Bolt A51

Weight

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

  1. 1. Bolt A51

    118 g

  2. 2. XP7

    290 g

    +172 g versus Bolt A51

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. Bolt A51

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. XP7

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

XP7 has approximately 24.8% more rectangular screen area than Bolt A51.

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 Bolt A51, XP7, compared at the same storage capacity.
StorageBolt A51XP7
16 GB Unknown 1 GB RAM
Bolt A51: 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. Bolt A51

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

2. XP7

NFC:
Yes
Headphone jack:
Yes
Memory card support:
No

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. Bolt A51

    1500 mAh

  2. 2. XP7

    4800 mAh

    +3300 mAh versus Bolt A51

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. Bolt A512. XP7

Everyday essentials
Everyday essentials — specifications for Bolt A51, XP7.
SpecificationBolt A51XP7
Dimensions (HxWxD)
  • 118.5 Х 62.5 Х 12.8 mm
  • 137 Х 72.1 Х 20.8 mm
Weight
  • 118 g
  • 290 g
Technology
  • TFT
Unknown
Screen size
  • 3.5" inch
  • 4" inch
Screen resolution
  • 320 x 480 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 16 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 4800 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 2.3.7 (Gingerbread)
  • Android 4.4.2 (KitKat)
Chipset Unknown
  • Qualcomm MSM8926 Snapdragon 400 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Bolt A51, XP7.
SpecificationBolt A51XP7
Touchscreen
  • touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 36.5 cm2
  • 45.5 cm2
Screen format
  • 3:2 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 49.3%
  • 46.1%
PPI /points per inch/
  • 165 PPI
  • 233 PPI
Screen protection Unknown
  • Corning Gorilla Glass 2
Camera and Video
Camera and Video — specifications for Bolt A51, XP7.
SpecificationBolt A51XP7
Rear camera, main
  • 2 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 2 MP
  • 8 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 1 MP
  • Single
Specifications
  • VGA
  • 1 MP
Performance

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

Performance — specifications for Bolt A51, XP7.
SpecificationBolt A51XP7
Processor CPU
  • 832 MHz
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU Unknown
  • Adreno 305
Antutu 7 score * Unknown
  • 18693
General specs
General specs — specifications for Bolt A51, XP7.
SpecificationBolt A51XP7
Release date
  • 2013
  • April
  • 2014
  • November
Colors
  • Black/Silver
  • Black
  • Yellow
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 700 EUR
Battery life
  • Stand by time- Up to 140 h Talking time- Up to 4 h 30 min
  • Stand by time- Up to 1000 h Talking time- Up to 40 h
Communication and Connectivity
Communication and Connectivity — specifications for Bolt A51, XP7.
SpecificationBolt A51XP7
SIM card
  • Dual SIM
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 1900 / 2100 - Telus -4G - LTE band 1(2100)
  • 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700) LTE band 1(2100)
  • 3(1800)
  • 17(700) - Telus
Speed
  • HSPA
  • HSPA
  • LTE
GPRS
  • Class 12
  • Yes
Edge
  • Class 32
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB
  • microUSB 2.0
Bluetooth
  • 3.0
  • 4.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Bolt A51, XP7.
SpecificationBolt A51XP7
Radio
  • FM radio
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Bolt A51, XP7.
SpecificationBolt A51XP7
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer
  • proximity - IP69 dust proof and water resistant over 1 meter and 30 minutes