Acer DX900 vs Motorola BACKFLIP

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

    BACKFLIP: 14 g lighter

    DX900:
    147 g
    BACKFLIP:
    133 g
  • Release year

    DX900:
    2009
    BACKFLIP:
    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. DX900

    Height:
    106 mm
    Width:
    60.5 mm
    Depth:
    17 mm
  2. 2. BACKFLIP

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown

    Folded/unfolded dimensions are ambiguous in this record; outlines are omitted.

Weight

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

  1. 1. DX900

    147 g

    +14 g versus BACKFLIP

  2. 2. BACKFLIP

    133 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. DX900

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

    BACKFLIP: 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.

DX900: Original memory entry

128 MB RAM · 256 MB ROM

BACKFLIP: Original memory entry

512 MB · 256 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. BACKFLIP

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB 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. DX900

    1530 mAh

    +130 mAh versus BACKFLIP

  2. 2. BACKFLIP

    1400 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. DX9002. BACKFLIP

Everyday essentials
Everyday essentials — specifications for DX900, BACKFLIP.
SpecificationDX900BACKFLIP
Dimensions (HxWxD)
  • 106 Х 60.5 Х 17 mm
  • 108 Х 53 Х 15.3 mm
Weight
  • 147 g
  • 133 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 3.1" inch
Screen resolution
  • 480 x 640 px
  • 320 x 480 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
  • 512 MB
  • 256 MB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Po
  • 1400 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 1.5 (Cupcake)
  • upgradable to 2.1 (Eclair) in USA
Chipset Unknown
  • Qualcomm MSM7201A
NFC
  • Super AMOLED
Unknown
Headphone jack
  • panorama
  • Yes
Display
Display — specifications for DX900, BACKFLIP.
SpecificationDX900BACKFLIP
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
Unknown
Screen area
  • 24.3 cm2
  • 28.6 cm2
Screen format
  • 4:3 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 37.9%
  • 50.0%
PPI /points per inch/
  • 286 PPI
  • 186 PPI
Screen protection Unknown
  • Corning Gorilla Glass
Camera and Video
Camera and Video — specifications for DX900, BACKFLIP.
SpecificationDX900BACKFLIP
Rear camera, main
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 5 MP
  • AF
Functions
  • Dual-LED flash
  • LED flash
Video
  • Yes
  • CIF@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA videocall camera
Unknown
Performance
Performance — specifications for DX900, BACKFLIP.
SpecificationDX900BACKFLIP
Processor CPU
  • 533 MHz Samsung S3C 6410
  • 528 MHz ARM 11
Graphics processor GPU Unknown
  • Adreno 130
General specs
General specs — specifications for DX900, BACKFLIP.
SpecificationDX900BACKFLIP
Release date
  • 2009
  • February
  • 2010
  • January
Colors
  • Black
  • Platinum Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
  • 150 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to10 h
  • Stand by time- Up to 315 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for DX900, BACKFLIP.
SpecificationDX900BACKFLIP
SIM card
  • Dual SIM (Mini-SIM)
  • Mini-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 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
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 - 0.58 W/kg (head) 0.60 W/kg (body)
Music and Audio
Music and Audio — specifications for DX900, BACKFLIP.
SpecificationDX900BACKFLIP
Radio
  • panorama
  • No
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for DX900, BACKFLIP.
SpecificationDX900BACKFLIP
Dop
  • Sensors Accelerometer Pocket Office -Voice memo -MP3 player Also known as Acer Tempo DX900
  • Acer Tempo X960
  • Sensors Accelerometer
  • proximity
  • compass - MP3/eAAC+/WAV/WMA9 player -MP4/H.264/WMV9 player -Organizer -Document viewer -Voice memo/dial -Predictive text input - BACKTRACK touch panel - Also known as Motorola Enzo
  • Motorola Motus
  • Motorola MB300