BLU Win JR LTE vs Lava A51

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.

  • Width

    A51: 1.5 mm narrower

    Win JR LTE:
    67.5 mm
    A51:
    66 mm
  • Chipset

    Win JR LTE:
    Qualcomm MSM8916 Snapdragon 410 (28 nm)
    A51:
    Spreadtrum SC7731C
  • Height

    Win JR LTE: 3 mm shorter

    Win JR LTE:
    133 mm
    A51:
    136 mm
  • Release year

    Win JR LTE:
    2015
    A51:
    2016

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. Win JR LTE

    Height:
    133 mm
    Width:
    67.5 mm +1.5 mm versus A51
    Depth:
    9.5 mm
    Weight:
    138 g
  2. 2. A51

    Height:
    136 mm +3 mm versus Win JR LTE
    Width:
    66 mm
    Depth:
    9.9 mm
    Weight:
    Unknown

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. Win JR LTE

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. A51

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

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Win JR LTE: Original memory entry

4 GB ROM · 512 MB 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. Win JR LTE

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

2. A51

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. Win JR LTE

    2000 mAh

    +250 mAh versus A51

  2. 2. A51

    1750 mAh

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. Win JR LTE2. A51

Everyday essentials
Everyday essentials — specifications for Win JR LTE, A51.
SpecificationWin JR LTEA51
Dimensions (HxWxD)
  • 133 Х 67.5 Х 9.5 mm
  • 136 Х 66 Х 9.9 mm
Weight
  • 138 g
  • 0 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 4.5" inch
  • 4.5" 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.
  • 4 GB ROM
  • 512 MB RAM
  • 8 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Non-removable Li-Po
  • 1750 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Phone 8.1
  • upgradable to Windows 10
  • Android 6.0 (Marshmallow)
Chipset
  • Qualcomm MSM8916 Snapdragon 410 (28 nm)
  • Spreadtrum SC7731C
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Win JR LTE, A51.
SpecificationWin JR LTEA51
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 55.8 cm2
  • 55.8 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 62.2%
  • 62.2%
PPI /points per inch/
  • 218 PPI
  • 218 PPI
Camera and Video
Camera and Video — specifications for Win JR LTE, A51.
SpecificationWin JR LTEA51
Rear camera, main
  • 5 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 5 MP
Functions
  • LED flash
  • LED flash
  • panorama
Video
  • 720p@30fps
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • VGA
  • VGA
Performance
Performance — specifications for Win JR LTE, A51.
SpecificationWin JR LTEA51
Processor CPU
  • Quad-core 1.2 GHz Cortex-A53
  • Quad-core 1.2 GHz
Graphics processor GPU
  • Adreno 306
Unknown
General specs
General specs — specifications for Win JR LTE, A51.
SpecificationWin JR LTEA51
Release date
  • 2015
  • April
  • 2016
  • October
Colors
  • Grey
  • White
  • Orange
  • Yellow
  • Pink
  • Gray
  • Black
  • Gold
Battery life
  • Stand by time- Up to 725 h (2G) / Up to 725 h (3G) Talking time- Up to 22 h (2G) / Up to 16 h (3G)
  • Stand by time- Up to 420 h (3G) Talking time- Up to 10 h 30 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Win JR LTE, A51.
SpecificationWin JR LTEA51
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1700 / 1900 / 2100 -4G - LTE band 4(1700/2100)
  • 7(2600)
  • 17(700) - X130Q
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
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
  • 4.0
  • A2DP
  • 2.1
  • EDR
Music and Audio
Music and Audio — specifications for Win JR LTE, A51.
SpecificationWin JR LTEA51
Radio
  • Stereo FM radio
  • FM radio
Other features
Other features — specifications for Win JR LTE, A51.
SpecificationWin JR LTEA51
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • Sensors Accelerometer For India