HTC ChaCha vs Lenovo A3900

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

    ChaCha: 37 g lighter

    ChaCha:
    120 g
    A3900:
    157 g
  • Width

    ChaCha: 7.2 mm narrower

    ChaCha:
    64.6 mm
    A3900:
    71.8 mm
  • Screen diagonal

    ChaCha: 2.4 in smaller diagonal

    ChaCha:
    2.6 in
    A3900:
    5 in
  • Depth

    A3900: 1.7 mm thinner

    ChaCha:
    10.7 mm
    A3900:
    9 mm
  • Height

    ChaCha: 28.4 mm shorter

    ChaCha:
    114.4 mm
    A3900:
    142.8 mm
  • Release year

    ChaCha:
    2011
    A3900:
    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. ChaCha

    Height:
    114.4 mm
    Width:
    64.6 mm
    Depth:
    10.7 mm +1.7 mm versus A3900
  2. 2. A3900

    Height:
    142.8 mm +28.4 mm versus ChaCha
    Width:
    71.8 mm +7.2 mm versus ChaCha
    Depth:
    9 mm

Weight

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

  1. 1. ChaCha

    120 g

  2. 2. A3900

    157 g

    +37 g versus ChaCha

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. ChaCha

    Screen diagonal:
    2.6 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    20.1 cm²
  2. 2. A3900

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

A3900 has approximately 242.4% more rectangular screen area than ChaCha.

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.

ChaCha: Original memory entry

512 MB · 512 MB RAM

A3900: 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. ChaCha

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

2. A3900

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. ChaCha

    1250 mAh

  2. 2. A3900

    2300 mAh

    +1050 mAh versus ChaCha

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. ChaCha2. A3900

Everyday essentials
Everyday essentials — specifications for ChaCha, A3900.
SpecificationChaChaA3900
Dimensions (HxWxD)
  • 114.4 Х 64.6 Х 10.7 mm
  • 142.8 Х 71.8 Х 9 mm
Weight
  • 120 g
  • 157 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.6" inch
  • 5" inch
Screen resolution
  • 480 x 320 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 512 MB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1250 mAh
  • Removable Li-Ion
  • 2300 mAh
  • Removable Li-Po
Operating system OS
  • Android 2.3 (Gingerbread); Sense UI 2.1
  • Android 4.4.2 (KitKat)
Chipset Unknown
  • Mediatek MT6752 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for ChaCha, A3900.
SpecificationChaChaA3900
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 20.1 cm2
  • 68.9 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 27.2%
  • 67.2%
PPI /points per inch/
  • 222 PPI
  • 196 PPI
Screen protection
  • Corning Gorilla Glass
Unknown
Camera and Video
Camera and Video — specifications for ChaCha, A3900.
SpecificationChaChaA3900
Rear camera, main
  • 5 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 5 MP
  • AF
Functions
  • LED flash
  • LED flash
Video
  • 480p@30fps
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • VGA
  • 2 MP
Performance

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

Performance — specifications for ChaCha, A3900.
SpecificationChaChaA3900
Processor CPU
  • 800 MHz
  • Octa-core 1.2 GHz Cortex-A53
Graphics processor GPU Unknown
  • Mali-T760MP2
Antutu 7 score *
  • 357
Unknown
General specs
General specs — specifications for ChaCha, A3900.
SpecificationChaChaA3900
Release date
  • 2011
  • February
  • 2015
  • May
Colors
  • Black
  • Silver
  • Black
  • Pearl White
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 70 EUR
Battery life
  • Stand by time- Up to 430 h (2G) / Up to 660 h (3G) Talking time- Up to 7 h 30 min (2G) / Up to 7 h (3G)
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for ChaCha, A3900.
SpecificationChaChaA3900
SIM card
  • Mini-SIM
  • Dual SIM (Mini-SIM/ Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 -4G - LTE
Speed
  • HSPA 7.2/0.384 Mbps
  • 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
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 3.0
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 0.68 W/kg (head) 1.37 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for ChaCha, A3900.
SpecificationChaChaA3900
Radio
  • Stereo FM radio
  • RDS
  • No
Other features
Other features — specifications for ChaCha, A3900.
SpecificationChaChaA3900
Dop
  • Sensors Accelerometer
  • proximity
  • compass - Facebook dedicated key -MP3/AAC+/WAV/WMA player -MP4/H.264 player -Organizer -Document viewer/editor -Voice memo -Predictive text input - Also known as HTC ChaChaCha
  • Sensors Accelerometer
  • proximity - Preliminary specifications