Lava A77 vs NIU Tek 4D2

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

    A77: 12 g lighter

    A77:
    140 g
    Tek 4D2:
    152 g
  • Width

    Tek 4D2: 4.2 mm narrower

    A77:
    67.2 mm
    Tek 4D2:
    63 mm
  • Screen diagonal

    Tek 4D2: 0.5 in smaller diagonal

    A77:
    4.5 in
    Tek 4D2:
    4 in
  • Chipset

    A77:
    Spreadtrum SC9832
    Tek 4D2:
    Mediatek MT6572M (28 nm)
  • Depth

    A77: 0.8 mm thinner

    A77:
    9.5 mm
    Tek 4D2:
    10.3 mm
  • Height

    Tek 4D2: 12 mm shorter

    A77:
    135 mm
    Tek 4D2:
    123 mm

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. A77

    Height:
    135 mm +12 mm versus Tek 4D2
    Width:
    67.2 mm +4.2 mm versus Tek 4D2
    Depth:
    9.5 mm
  2. 2. Tek 4D2

    Height:
    123 mm
    Width:
    63 mm
    Depth:
    10.3 mm +0.8 mm versus A77

Weight

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

  1. 1. A77

    140 g

  2. 2. Tek 4D2

    152 g

    +12 g versus A77

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. A77

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. Tek 4D2

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

A77 has approximately 22.6% more rectangular screen area than Tek 4D2.

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 A77, Tek 4D2, compared at the same storage capacity.
StorageA77Tek 4D2
8 GB 1 GB RAM Unknown
Tek 4D2: Original memory entry

4 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. A77

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

2. Tek 4D2

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. A77

    2000 mAh

    +800 mAh versus Tek 4D2

  2. 2. Tek 4D2

    1200 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. A772. Tek 4D2

Everyday essentials
Everyday essentials — specifications for A77, Tek 4D2.
SpecificationA77Tek 4D2
Dimensions (HxWxD)
  • 135 Х 67.2 Х 9.5 mm
  • 123 Х 63 Х 10.3 mm
Weight
  • 140 g
  • 152 g
Technology
  • TN
Unknown
Screen size
  • 4.5" inch
  • 4" inch
Screen resolution
  • 480 x 854 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Ion
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 4.4.2 (KitKat)
Chipset
  • Spreadtrum SC9832
  • Mediatek MT6572M (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A77, Tek 4D2.
SpecificationA77Tek 4D2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 55.8 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 61.5%
  • 58.8%
PPI /points per inch/
  • 218 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for A77, Tek 4D2.
SpecificationA77Tek 4D2
Rear camera, main
  • 5 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 5 MP
  • 3.15 MP
Functions
  • LED flash
  • LED flash
  • panorama
Video
  • Yes
  • 480p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 5 MP
  • 1.3 MP
Performance

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

Performance — specifications for A77, Tek 4D2.
SpecificationA77Tek 4D2
Processor CPU
  • Quad-core 1.3 GHz
  • Dual-core 1.0 GHz Cortex-A7
Graphics processor GPU
  • Mali-400
  • Mali-400
Antutu 7 score *
  • 7812
Unknown
General specs
General specs — specifications for A77, Tek 4D2.
SpecificationA77Tek 4D2
Release date
  • 2017
  • May
  • 2014
  • August
Colors
  • Gold
  • Silver
  • Blue
  • Black
  • Gray
  • White
  • Blue
  • Orange
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 6099 INR
Unknown
Battery life Unknown
  • Stand by time- Up to 400 h (2G) / Up to 320 h (3G) Talking time- Up to 8 h (2G) / Up to 6 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A77, Tek 4D2.
SpecificationA77Tek 4D2
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Mini-SIM/ Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE band 3(1800)
  • 5(850)
  • 40(2300)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for A77, Tek 4D2.
SpecificationA77Tek 4D2
Radio
  • Stereo FM radio with RDS; reco
  • Stereo FM radio
Other features
Other features — specifications for A77, Tek 4D2.
SpecificationA77Tek 4D2
Dop
  • Sensors Accelerometer
  • proximity - For India
  • Sensors Accelerometer Single SIM: TC4D2I043 Dual SIM: TM4D2I043