Celkon 2GB Xpress vs verykool s4009 Crystal

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.

  • Screen diagonal

    s4009 Crystal: 0.5 in smaller diagonal

    2GB Xpress:
    4.5 in
    s4009 Crystal:
    4 in
  • Chipset

    2GB Xpress:
    Spreadtrum 7731
    s4009 Crystal:
    Mediatek MT6570 (28 nm)
  • Depth

    2GB Xpress: 0.6 mm thinner

    2GB Xpress:
    10.1 mm
    s4009 Crystal:
    10.7 mm
  • Height

    s4009 Crystal: 6.5 mm shorter

    2GB Xpress:
    133.5 mm
    s4009 Crystal:
    127 mm
  • Release year

    2GB Xpress:
    2015
    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. 2GB Xpress

    Height:
    133.5 mm +6.5 mm versus s4009 Crystal
    Width:
    66.5 mm
    Depth:
    10.1 mm
    Weight:
    134 g
  2. 2. s4009 Crystal

    Height:
    127 mm
    Width:
    66 mm
    Depth:
    10.7 mm +0.6 mm versus 2GB Xpress
    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. 2GB Xpress

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

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

2GB Xpress has approximately 26.6% more rectangular screen area than s4009 Crystal.

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 2GB Xpress, s4009 Crystal, compared at the same storage capacity.
Storage2GB Xpresss4009 Crystal
16 GB 2 GB RAM Unknown
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. 2GB Xpress

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

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. 2GB Xpress

    1500 mAh

    +300 mAh versus s4009 Crystal

  2. 2. s4009 Crystal

    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. 2GB Xpress2. s4009 Crystal

Everyday essentials
Everyday essentials — specifications for 2GB Xpress, s4009 Crystal.
Specification2GB Xpresss4009 Crystal
Dimensions (HxWxD)
  • 133.5 Х 66.5 Х 10.1 mm
  • 127 Х 66 Х 10.7 mm
Weight
  • 134 g
  • 0 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 4.5" inch
  • 4" inch
Screen resolution
  • 480 x 800 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 2 GB RAM
  • 8 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • upgradable to 5.0 (Lollipop)
  • Android 6.0 (Marshmallow)
Chipset
  • Spreadtrum 7731
  • Mediatek MT6570 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for 2GB Xpress, s4009 Crystal.
Specification2GB Xpresss4009 Crystal
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 57.6 cm2
  • 45.5 cm2
Screen format
  • 5:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 64.9%
  • 54.3%
PPI /points per inch/
  • 207 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for 2GB Xpress, s4009 Crystal.
Specification2GB Xpresss4009 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
  • Yes
  • 720p@30fps
Front camera, selfie
  • 1.3 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 1.3 MP
  • 2 MP
Performance

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

Performance — specifications for 2GB Xpress, s4009 Crystal.
Specification2GB Xpresss4009 Crystal
Processor CPU
  • Quad-core 1.2 GHz
  • Dual-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Mali-400
  • Mali-400
Antutu 7 score * Unknown
  • 10257
General specs
General specs — specifications for 2GB Xpress, s4009 Crystal.
Specification2GB Xpresss4009 Crystal
Release date
  • 2015
  • July
  • 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 2GB Xpress, s4009 Crystal.
Specification2GB Xpresss4009 Crystal
SIM card
  • Dual SIM
  • Dual SIM (Mini-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
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 21.1/5.76 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
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • EDR
  • 4.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 1.13 W/kg (head) 0.81 W/kg (body)
Music and Audio
Music and Audio — specifications for 2GB Xpress, s4009 Crystal.
Specification2GB Xpresss4009 Crystal
Radio
  • FM radio
  • Stereo FM radio
Other features
Other features — specifications for 2GB Xpress, s4009 Crystal.
Specification2GB Xpresss4009 Crystal
Dop
  • Sensors Accelerometer
  • Sensors Accelerometer