Lava A51 vs ZTE Speed

Compare recorded specifications, size and practical differences.

+ Add a third phone

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.

  • Chipset

    A51:
    Spreadtrum SC7731C
    Speed:
    Qualcomm MSM8916 Snapdragon 410 (28 nm)
  • Release year

    A51:
    2016
    Speed:
    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. A51

    Height:
    136 mm
    Width:
    66 mm
    Depth:
    9.9 mm
    Weight:
    Unknown
  2. 2. Speed

    Height:
    134.6 mm
    Width:
    66 mm
    Depth:
    10.2 mm
    Weight:
    136.1 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. A51

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

    Speed: Screen geometry unavailable or conflicting.

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 A51, Speed, compared at the same storage capacity.
StorageA51Speed
8 GB Unknown 1 GB RAM
A51: Original memory entry

8 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. A51

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

2. Speed

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

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. A51

    1750 mAh

  2. 2. Speed

    2000 mAh

    +250 mAh versus 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. A512. Speed

Everyday essentials
Everyday essentials — specifications for A51, Speed.
SpecificationA51Speed
Dimensions (HxWxD)
  • 136 Х 66 Х 9.9 mm
  • 134.6 Х 66 Х 10.2 mm
Weight
  • 0 g
  • 136.1 g
Technology
  • TFT
  • TFT
Screen size
  • 4.5" inch
  • 4.5" inch
Screen resolution
  • 480 x 854 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1750 mAh
  • Removable Li-Ion
  • 2000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 4.4.2 (KitKat)
Chipset
  • Spreadtrum SC7731C
  • Qualcomm MSM8916 Snapdragon 410 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A51, Speed.
SpecificationA51Speed
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 55.8 cm2
  • 55.8 cm2
Screen format
  • 16:9 (height:width)
Unknown
Screen to body ratio
  • 62.2%
  • 62.8%
PPI /points per inch/
  • 218 PPI
  • 245 PPI
Camera and Video
Camera and Video — specifications for A51, Speed.
SpecificationA51Speed
Rear camera, main
  • 5 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 5 MP
  • 5 MP
  • AF
Functions
  • LED flash
  • panorama
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • VGA
  • 2 MP
Performance
Performance — specifications for A51, Speed.
SpecificationA51Speed
Processor CPU
  • Quad-core 1.2 GHz
  • Quad-core 1.2 GHz Cortex-A53
Graphics processor GPU Unknown
  • Adreno 306
General specs
General specs — specifications for A51, Speed.
SpecificationA51Speed
Release date
  • 2016
  • October
  • 2014
  • December
Colors
  • Gray
  • Black
  • Gold
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 80 EUR
Battery life
  • Stand by time- Up to 420 h (3G) Talking time- Up to 10 h 30 min (3G)
  • Talking time- Up to 14 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A51, Speed.
SpecificationA51Speed
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 -4G - LTE
Speed
  • HSPA
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • EDR
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for A51, Speed.
SpecificationA51Speed
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A51, Speed.
SpecificationA51Speed
Dop
  • Sensors Accelerometer For India
  • Sensors Accelerometer
  • proximity - For Boost Mobile