LG KT770 vs verykool s4009 Crystal

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

    KT770: 14.5 mm narrower

    KT770:
    51.5 mm
    s4009 Crystal:
    66 mm
  • Screen diagonal

    KT770: 1.2 in smaller diagonal

    KT770:
    2.8 in
    s4009 Crystal:
    4 in
  • Depth

    s4009 Crystal: 5.1 mm thinner

    KT770:
    15.8 mm
    s4009 Crystal:
    10.7 mm
  • Height

    KT770: 16 mm shorter

    KT770:
    111 mm
    s4009 Crystal:
    127 mm
  • Release year

    KT770:
    2009
    s4009 Crystal:
    2017

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. KT770

    Height:
    111 mm
    Width:
    51.5 mm
    Depth:
    15.8 mm +5.1 mm versus s4009 Crystal
    Weight:
    Unknown
  2. 2. s4009 Crystal

    Height:
    127 mm +16 mm versus KT770
    Width:
    66 mm +14.5 mm versus KT770
    Depth:
    10.7 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. KT770

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    22.3 cm²
  2. 2. s4009 Crystal

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

s4009 Crystal has approximately 104.1% more rectangular screen area than KT770.

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.

KT770: Original memory entry

120 MB

s4009 Crystal: 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. KT770

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 GB (dedicated slot)

2. s4009 Crystal

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. KT770

    950 mAh

  2. 2. s4009 Crystal

    1200 mAh

    +250 mAh versus KT770

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. KT7702. s4009 Crystal

Everyday essentials
Everyday essentials — specifications for KT770, s4009 Crystal.
SpecificationKT770s4009 Crystal
Dimensions (HxWxD)
  • 111 Х 51.5 Х 15.8 mm
  • 127 Х 66 Х 10.7 mm
Weight
  • 0 g
  • 0 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 4" inch
Screen resolution
  • 240 x 400 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 120 MB
  • 8 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 950 mAh
  • Removable Li-Ion
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Symbian OS 9.3 Series60 rel. 3.2.3
  • Android 6.0 (Marshmallow)
Chipset Unknown
  • Mediatek MT6570 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for KT770, s4009 Crystal.
SpecificationKT770s4009 Crystal
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 22.3 cm2
  • 45.5 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 39.0%
  • 54.3%
PPI /points per inch/
  • 167 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for KT770, s4009 Crystal.
SpecificationKT770s4009 Crystal
Rear camera, main
  • 5 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 5 MP
  • f/2.4
Functions
  • LED flash
  • LED flash
  • panorama
Video
  • 480p@30fps
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • VGA videocall camera
  • 2 MP
Performance

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

Performance — specifications for KT770, s4009 Crystal.
SpecificationKT770s4009 Crystal
Processor CPU Unknown
  • Dual-core 1.3 GHz Cortex-A7
Graphics processor GPU Unknown
  • Mali-400
Antutu 7 score * Unknown
  • 10257
General specs
General specs — specifications for KT770, s4009 Crystal.
SpecificationKT770s4009 Crystal
Release date
  • 2009
  • February
  • 2017
  • June
Colors
  • Black
  • Black/Gold
Battery life Unknown
  • Stand by time- Up to 150 h (3G) Talking time- Up to 4 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for KT770, s4009 Crystal.
SpecificationKT770s4009 Crystal
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
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.36 W/kg (head) 0.75 W/kg (body)
  • SAR - 1.13 W/kg (head) 0.81 W/kg (body)
Music and Audio
Music and Audio — specifications for KT770, s4009 Crystal.
SpecificationKT770s4009 Crystal
Radio
  • No
  • Stereo FM radio
Others
  • Touch-sensitive navigation keys
Unknown
Other features
Other features — specifications for KT770, s4009 Crystal.
SpecificationKT770s4009 Crystal
Dop
  • WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Organizer -Document viewer (Word
  • Excel
  • PowerPoint
  • PDF) -Voice memo -Predictive text input
  • Sensors Accelerometer