Acer DX900 vs Nokia Lumia 720

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

    Lumia 720: 19 g lighter

    DX900:
    147 g
    Lumia 720:
    128 g
  • Width

    DX900: 7 mm narrower

    DX900:
    60.5 mm
    Lumia 720:
    67.5 mm
  • Screen diagonal

    DX900: 1.5 in smaller diagonal

    DX900:
    2.8 in
    Lumia 720:
    4.3 in
  • Depth

    Lumia 720: 8 mm thinner

    DX900:
    17 mm
    Lumia 720:
    9 mm
  • Height

    DX900: 21.9 mm shorter

    DX900:
    106 mm
    Lumia 720:
    127.9 mm
  • Release year

    DX900:
    2009
    Lumia 720:
    2013

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. DX900

    Height:
    106 mm
    Width:
    60.5 mm
    Depth:
    17 mm +8 mm versus Lumia 720
  2. 2. Lumia 720

    Height:
    127.9 mm +21.9 mm versus DX900
    Width:
    67.5 mm +7 mm versus DX900
    Depth:
    9 mm

Weight

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

  1. 1. DX900

    147 g

    +19 g versus Lumia 720

  2. 2. Lumia 720

    128 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. DX900

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. Lumia 720

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

Lumia 720 has approximately 116.8% more rectangular screen area than DX900.

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.

DX900: Original memory entry

128 MB RAM · 256 MB ROM

Lumia 720: 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. DX900

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

2. Lumia 720

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 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. DX900

    1530 mAh

  2. 2. Lumia 720

    2000 mAh

    +470 mAh versus DX900

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. DX9002. Lumia 720

Everyday essentials
Everyday essentials — specifications for DX900, Lumia 720.
SpecificationDX900Lumia 720
Dimensions (HxWxD)
  • 106 Х 60.5 Х 17 mm
  • 127.9 Х 67.5 Х 9 mm
Weight
  • 147 g
  • 128 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 4.3" inch
Screen resolution
  • 480 x 640 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 256 MB ROM
  • 8 GB
  • 512 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 64 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Po
  • 2000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Microsoft Windows Phone 8
  • upgradable to 8.1
Chipset Unknown
  • Qualcomm MSM8227
NFC
  • Super AMOLED
  • Yes
Headphone jack
  • panorama
  • Yes
Display
Display — specifications for DX900, Lumia 720.
SpecificationDX900Lumia 720
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 52.6 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 37.9%
  • 61.0%
PPI /points per inch/
  • 286 PPI
  • 217 PPI
Screen protection Unknown
  • Corning Gorilla Glass 2
Camera and Video
Camera and Video — specifications for DX900, Lumia 720.
SpecificationDX900Lumia 720
Rear camera, main
  • 3.15 MP
  • Single
  • 6.7 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 6.7 MP
  • 1/3.6''
  • AF
Functions
  • Dual-LED flash
  • Carl Zeiss optics
  • LED flash
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • VGA videocall camera
  • 1.3 MP
Performance

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

Performance — specifications for DX900, Lumia 720.
SpecificationDX900Lumia 720
Processor CPU
  • 533 MHz Samsung S3C 6410
  • Dual-core 1.0 GHz
Graphics processor GPU Unknown
  • Adreno 305
Antutu 7 score * Unknown
  • 3000
General specs
General specs — specifications for DX900, Lumia 720.
SpecificationDX900Lumia 720
Release date
  • 2009
  • February
  • 2013
  • February
Colors
  • Black
  • White
  • Red
  • Yellow
  • Cyan/Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
  • 200 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to10 h
  • Stand by time- Up to 520 h (3G) Talking time- Up to 23 h 20 min (2G) / Up to 13 h 20 min (3G) Music play - Up to 79 h
Communication and Connectivity
Communication and Connectivity — specifications for DX900, Lumia 720.
SpecificationDX900Lumia 720
SIM card
  • Dual SIM (Mini-SIM)
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 GSM 900 / 1800 / 1900 - SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Class 10
  • Class B
Edge
  • Class 10
  • Up to 236.8 kbps
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • SiRF Star III chipset
  • Yes
  • with A-GPS
  • GLONASS
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • microUSB 2.0
  • A2DP
  • 4.0
  • A2DP
  • LE/ aptX after WP8 Denim update
Harmful irradiation Unknown
  • SAR - 1.24 W/kg (head) SAR EU - 0.76 W/kg (head)
Music and Audio
Music and Audio — specifications for DX900, Lumia 720.
SpecificationDX900Lumia 720
Radio
  • panorama
  • FM radio
Others
  • Handwriting recognition
  • ClearBlack display
  • Dolby Headphone -Active noise cancellation with dedicated mic
Other features
Other features — specifications for DX900, Lumia 720.
SpecificationDX900Lumia 720
Dop
  • Sensors Accelerometer Pocket Office -Voice memo -MP3 player Also known as Acer Tempo DX900
  • Acer Tempo X960
  • Sensors Accelerometer
  • proximity
  • compass - Also known as Nokia 720 RM-885