alcatel OT-991 vs Nokia 6620

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

    6620: 9.3 g lighter

    OT-991:
    131.3 g
    6620:
    122 g
  • Width

    6620: 10 mm narrower

    OT-991:
    68 mm
    6620:
    58 mm
  • Screen diagonal

    6620: 1.9 in smaller diagonal

    OT-991:
    4 in
    6620:
    2.1 in
  • Chipset

    OT-991:
    Mediatek MT6573 (65 nm)
    6620:
    TI OMAP 1510
  • Depth

    OT-991: 13.2 mm thinner

    OT-991:
    10.8 mm
    6620:
    24 mm
  • Height

    6620: 13 mm shorter

    OT-991:
    122 mm
    6620:
    109 mm

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. OT-991

    Height:
    122 mm +13 mm versus 6620
    Width:
    68 mm +10 mm versus 6620
    Depth:
    10.8 mm
  2. 2. 6620

    Height:
    109 mm
    Width:
    58 mm
    Depth:
    24 mm +13.2 mm versus OT-991

Weight

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

  1. 1. OT-991

    131.3 g

    +9.3 g versus 6620

  2. 2. 6620

    122 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. OT-991

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    47.6 cm²
  2. 2. 6620

    6620: Screen geometry unavailable or conflicting.

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.

OT-991: Original memory entry

150 MB

6620: Original memory entry

12 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. OT-991

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

2. 6620

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details RS-MMC · 32 MB included

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. OT-991

    1500 mAh

    +650 mAh versus 6620

  2. 2. 6620

    850 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. OT-9912. 6620

Everyday essentials
Everyday essentials — specifications for OT-991, 6620.
SpecificationOT-9916620
Dimensions (HxWxD)
  • 122 Х 68 Х 10.8 mm
  • 109 Х 58 Х 24 mm
Weight
  • 131.3 g
  • 122 g
Technology
  • TFT
  • TFT
Screen size
  • 4" inch
  • 2.1" inch
Screen resolution
  • 320 x 480 px
  • 176 x 208 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 150 MB
  • 12 MB
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • RS-MMC
  • 32 MB included
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 850 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.3 (Gingerbread)
  • Symbian 7.0s
  • Series 60 v2.0 UI
Chipset
  • Mediatek MT6573 (65 nm)
  • TI OMAP 1510
Headphone jack
  • Yes
  • No
Display
Display — specifications for OT-991, 6620.
SpecificationOT-9916620
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 256K
  • 65K
Screen area
  • 47.6 cm2
  • 14.0 cm2
Screen format
  • 3:2 (height:width)
Unknown
Screen to body ratio
  • 57.4%
  • 22.2%
PPI /points per inch/
  • 144 PPI
  • 0 PPI
Camera and Video
Camera and Video — specifications for OT-991, 6620.
SpecificationOT-9916620
Rear camera, main
  • 3.15 MP
  • Single
  • 0.3 MP
  • Single
Camera specs
  • 3.15 MP
Unknown
Functions
  • LED flash
Unknown
Video
  • Yes
  • QCIF
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Performance
Performance — specifications for OT-991, 6620.
SpecificationOT-9916620
Processor CPU
  • 800 MHz Cortex-A9
  • 150 MHz ARM925T
Graphics processor GPU
  • PowerVR SGX531
Unknown
General specs
General specs — specifications for OT-991, 6620.
SpecificationOT-9916620
Release date
  • 2012
  • February
  • 2004
  • Q1
Colors
  • Black
  • White
  • Light Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
Unknown
Battery life
  • Stand by time- Up to 400 h Talking time- Up to 12 h (2G) / Up to 10 h (3G)
  • Stand by time- Up to 190 h Talking time- Up to 4 h
Communication and Connectivity
Communication and Connectivity — specifications for OT-991, 6620.
SpecificationOT-9916620
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 7.2/0.384 Mbps
Unknown
GPRS
  • Class 12
  • Class 4
Edge
  • Class 12
  • Yes
  • 118.4 kbps
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • Pop-Port
Bluetooth
  • 4.0
  • A2DP
  • 1.1
Harmful irradiation
  • SAR EU - 0.54 W/kg (head) 0.84 W/kg (body)
  • SAR - 1.16 W/kg (head) 0.74 W/kg (body) SAR EU - 0.81 W/kg (head)
Music and Audio
Music and Audio — specifications for OT-991, 6620.
SpecificationOT-9916620
Radio
  • Stereo FM radio
  • RDS
  • No
Others Unknown
  • 5-way joystick navigation -Selectable themes
Other features
Other features — specifications for OT-991, 6620.
SpecificationOT-9916620
Dop
  • Sensors Accelerometer
  • proximity
  • compass - MP3/AAC+/WAV/WMA player -MP4/H.264 player -Document viewer -Photo viewer/editor -Organizer -Voice memo -Predictive text input
  • Infrared port - Stereo MP3/AAC player -Predictive text input -Voice dial - For the US