Samsung Gravity SMART vs ZTE X990

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

    X990: 40 g lighter

    Gravity SMART:
    130 g
    X990:
    90 g
  • Width

    Gravity SMART: 2 mm narrower

    Gravity SMART:
    59 mm
    X990:
    61 mm
  • Screen diagonal

    X990: 0.7 in smaller diagonal

    Gravity SMART:
    3.2 in
    X990:
    2.5 in
  • Depth

    X990: 2 mm thinner

    Gravity SMART:
    14 mm
    X990:
    12 mm
  • Height

    X990: 7 mm shorter

    Gravity SMART:
    114 mm
    X990:
    107 mm
  • Release year

    Gravity SMART:
    2011
    X990:
    2010

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. Gravity SMART

    Height:
    114 mm +7 mm versus X990
    Width:
    59 mm
    Depth:
    14 mm +2 mm versus X990
  2. 2. X990

    Height:
    107 mm
    Width:
    61 mm +2 mm versus Gravity SMART
    Depth:
    12 mm

Weight

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

  1. 1. Gravity SMART

    130 g

    +40 g versus X990

  2. 2. X990

    90 g

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. Gravity SMART

    Screen diagonal:
    3.2 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    30.5 cm²
  2. 2. X990

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

Gravity SMART has approximately 57.5% more rectangular screen area than X990.

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.

Gravity SMART: Original memory entry

150 MB · 270 MB RAM

X990: Original memory entry

5 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Gravity SMART

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

2. X990

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 8 GB (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. Gravity SMART2. X990

Everyday essentials
Everyday essentials — specifications for Gravity SMART, X990.
SpecificationGravity SMARTX990
Dimensions (HxWxD)
  • 114 Х 59 Х 14 mm
  • 107 Х 61 Х 12 mm
Weight
  • 130 g
  • 90 g
Technology
  • TFT
  • TFT
Screen size
  • 3.2" inch
  • 2.5" inch
Screen resolution
  • 320 x 480 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 150 MB
  • 270 MB RAM
  • 5 MB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
  • microSD
  • up to 8 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 0 mAh,
Operating system OS
  • Android 2.2 (Froyo)
  • Microsoft Windows Mobile 6.5 Professional
Headphone jack
  • Yes
  • No
Display
Display — specifications for Gravity SMART, X990.
SpecificationGravity SMARTX990
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 30.5 cm2
  • 19.4 cm2
Screen format
  • 3:2 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 45.3%
  • 29.7%
PPI /points per inch/
  • 180 PPI
  • 160 PPI
Camera and Video
Camera and Video — specifications for Gravity SMART, X990.
SpecificationGravity SMARTX990
Rear camera, main
  • 3.15 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 3.15 MP
  • 2 MP
Functions
  • LED flash
Unknown
Video
  • 320p@14fps
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for Gravity SMART, X990.
SpecificationGravity SMARTX990
Processor CPU
  • 800 MHz ARMv6
Unknown
General specs
General specs — specifications for Gravity SMART, X990.
SpecificationGravity SMARTX990
Release date
  • 2011
  • June
  • 2010
  • March
Colors
  • Black/Red
  • Black/Green
  • Lunar Grey
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
Unknown
Battery life
  • Stand by time- Up to 364 h Talking time- Up to 5 h 30 min
  • Stand by time- Up to 480 h Talking time- Up to 8 h
Communication and Connectivity
Communication and Connectivity — specifications for Gravity SMART, X990.
SpecificationGravity SMARTX990
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 3.6/0.384 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g
  • DLNA
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 3.0
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation
  • SAR - 0.47 W/kg (head) 1.05 W/kg (body) SAR EU - 0.19 W/kg (head)
  • SAR EU - 0.96 W/kg (head)
Music and Audio
Music and Audio — specifications for Gravity SMART, X990.
SpecificationGravity SMARTX990
Radio
  • No
  • Stereo FM radio
  • RDS
Other features
Other features — specifications for Gravity SMART, X990.
SpecificationGravity SMARTX990
Dop
  • Sensors Accelerometer
  • proximity - MP4/H.264 player -MP3/WAV/AAC+ player -Organizer -Photo/video editor -Document viewer -Voice memo -Predictive text input (Swype) - For T-Mobile. Also known as Samsung Gravity Touch 2
  • Samsung Smart
  • Samsung GT2
  • Samsung SGH-T589
  • Samsung Galaxy Q
  • Windows Live Messenger -MP3/WMA/eAAC+ player -MP4/H.264 player -MS Office -Organizer -Voice memo -Predictive text input Also known as Messenger by SFR 251 Edition