Lava A51 vs Oppo R7

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

    A51: 5 mm narrower

    A51:
    66 mm
    R7:
    71 mm
  • Screen diagonal

    A51: 0.5 in smaller diagonal

    A51:
    4.5 in
    R7:
    5 in
  • Chipset

    A51:
    Spreadtrum SC7731C
    R7:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Depth

    R7: 3.6 mm thinner

    A51:
    9.9 mm
    R7:
    6.3 mm
  • Height

    A51: 7 mm shorter

    A51:
    136 mm
    R7:
    143 mm
  • Release year

    A51:
    2016
    R7:
    2015

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 +3.6 mm versus R7
    Weight:
    Unknown
  2. 2. R7

    Height:
    143 mm +7 mm versus A51
    Width:
    71 mm +5 mm versus A51
    Depth:
    6.3 mm
    Weight:
    147 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. A51

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. R7

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

R7 has approximately 23.5% more rectangular screen area than 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 A51, R7, compared at the same storage capacity.
StorageA51R7
16 GB Unknown 3 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. R7

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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. R7

    2320 mAh

    +570 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. R7

Everyday essentials
Everyday essentials — specifications for A51, R7.
SpecificationA51R7
Dimensions (HxWxD)
  • 136 Х 66 Х 9.9 mm
  • 143 Х 71 Х 6.3 mm
Weight
  • 0 g
  • 147 g
Technology
  • TFT
  • AMOLED
Screen size
  • 4.5" inch
  • 5" inch
Screen resolution
  • 480 x 854 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 16 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1750 mAh
  • Removable Li-Ion
  • 2320 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 4.4.2 (KitKat); ColorOS 2.1
Chipset
  • Spreadtrum SC7731C
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A51, R7.
SpecificationA51R7
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 55.8 cm2
  • 67.7 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 62.2%
  • 66.7%
PPI /points per inch/
  • 218 PPI
  • 445 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for A51, R7.
SpecificationA51R7
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • 13 MP
  • Schneider-Kreuznach optics PDAF
  • f/2.2
Functions
  • LED flash
  • panorama
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.4
Performance

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

Performance — specifications for A51, R7.
SpecificationA51R7
Processor CPU
  • Quad-core 1.2 GHz
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Adreno 405
Antutu 7 score * Unknown
  • 28195
GeekBench 4 Single Core * Unknown
  • 683
GeekBench 4 Multi-Core * Unknown
  • 3530
General specs
General specs — specifications for A51, R7.
SpecificationA51R7
Release date
  • 2016
  • October
  • 2015
  • May
Colors
  • Gray
  • Black
  • Gold
  • Golden
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 360 EUR
Battery life
  • Stand by time- Up to 420 h (3G) Talking time- Up to 10 h 30 min (3G)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A51, R7.
SpecificationA51R7
SIM card
  • Dual SIM
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 - Global
  • Taiwan HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - USA -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 40(2300) - Global LTE band 1(2100)
  • 5(850)
  • 28(700)
  • 40(2300) - Taiwan LTE band 1(2100)
  • 4(1700/2100)
  • 17(700)
  • 20(800) - USA
Speed
  • HSPA
  • HSPA
  • LTE Cat4 150/50 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
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 2.1
  • EDR
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for A51, R7.
SpecificationA51R7
Radio
  • FM radio
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A51, R7.
SpecificationA51R7
Dop
  • Sensors Accelerometer For India
  • Sensors Accelerometer
  • proximity
  • compass - Fast battery charging: 75% in 30 min (VOOC Flash Charge)