Acer DX650 vs alcatel OT-990

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.

  • Weight

    DX650: 11 g lighter

    DX650:
    133 g
    OT-990:
    144 g
  • Width

    DX650: 3.2 mm narrower

    DX650:
    59 mm
    OT-990:
    62.2 mm
  • Screen diagonal

    DX650: 0.7 in smaller diagonal

    DX650:
    2.8 in
    OT-990:
    3.5 in
  • Depth

    OT-990: 3.4 mm thinner

    DX650:
    15.6 mm
    OT-990:
    12.2 mm
  • Height

    DX650: 6.4 mm shorter

    DX650:
    109.6 mm
    OT-990:
    116 mm
  • Release year

    DX650:
    2009
    OT-990:
    2011

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. DX650

    Height:
    109.6 mm
    Width:
    59 mm
    Depth:
    15.6 mm +3.4 mm versus OT-990
  2. 2. OT-990

    Height:
    116 mm +6.4 mm versus DX650
    Width:
    62.2 mm +3.2 mm versus DX650
    Depth:
    12.2 mm

Weight

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

  1. 1. DX650

    133 g

  2. 2. OT-990

    144 g

    +11 g versus DX650

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. DX650

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. OT-990

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²

OT-990 has approximately 50.2% more rectangular screen area than DX650.

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.

DX650: Original memory entry

Super AMOLED

OT-990: Original memory entry

150 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. DX650

NFC:
See details Super AMOLED
Headphone jack:
See details panorama
Memory card support:
See details microSD (dedicated slot)

2. OT-990

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. DX650

    1260 mAh

  2. 2. OT-990

    1300 mAh

    +40 mAh versus DX650

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. DX6502. OT-990

Everyday essentials
Everyday essentials — specifications for DX650, OT-990.
SpecificationDX650OT-990
Dimensions (HxWxD)
  • 109.6 Х 59 Х 15.6 mm
  • 116 Х 62.2 Х 12.2 mm
Weight
  • 133 g
  • 144 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 3.5" inch
Screen resolution
  • 240 x 320 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • Super AMOLED
  • 150 MB
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1260 mAh
  • Removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 2.2 (Froyo)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • panorama
  • Yes
Display
Display — specifications for DX650, OT-990.
SpecificationDX650OT-990
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 256K
Screen area
  • 24.3 cm2
  • 36.5 cm2
Screen format
  • 4:3 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 37.5%
  • 50.6%
PPI /points per inch/
  • 143 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for DX650, OT-990.
SpecificationDX650OT-990
Rear camera, main
  • 2 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 2 MP
  • 5 MP
  • AF
Functions Unknown
  • LED flash
Video
  • panorama
  • Yes
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications
  • Super AMOLED
Unknown
Performance
Performance — specifications for DX650, OT-990.
SpecificationDX650OT-990
Processor CPU
  • Samsung S3C 6410 533 MHz
  • 600 MHz
General specs
General specs — specifications for DX650, OT-990.
SpecificationDX650OT-990
Release date
  • 2009
  • June
  • 2011
  • February
Colors
  • Black
  • Bluish Black
  • Auberguine
  • Spicy Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 110 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 4 h
  • Stand by time- Up to 550 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for DX650, OT-990.
SpecificationDX650OT-990
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • Super AMOLED
  • HSPA 7.2/0.384 Mbps
GPRS
  • Class 10
  • Class 12
Edge
  • Class 10
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • SiRF Star III chipset
  • Yes
  • with A-GPS
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • microUSB 2.0
  • A2DP
  • 2.1
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.96 W/kg (head) 1.12 W/kg (body)
Music and Audio
Music and Audio — specifications for DX650, OT-990.
SpecificationDX650OT-990
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others
  • Secondary 1.27'' OLED display (128 x 96 pixel resolution) -Handwriting recognition
Unknown
Other features
Other features — specifications for DX650, OT-990.
SpecificationDX650OT-990
Dop
  • Sensors Accelerometer Pocket Office -Voice memo -MP3 player
  • Sensors Accelerometer
  • proximity
  • compass - MP3/AAC+/WAV/WMA player -MP4/H.264 player -Organizer -Document viewer -Voice memo -Predictive text input - Optical trackpad