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Acer DX900 vs Oppo A77 (Mediatek)

Compare recorded specifications, size and practical differences.

Acer DX900

Acer DX900

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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.

  • WeightDX900: 6 g lighterDX900: 147 g · A77 (Mediatek): 153 g
  • WidthDX900: 14.7 mm narrowerDX900: 60.5 mm · A77 (Mediatek): 75.2 mm
  • Screen diagonalDX900: 2.7 in smaller diagonalDX900: 2.8 in · A77 (Mediatek): 5.5 in
  • DepthA77 (Mediatek): 9.7 mm thinnerA77 (Mediatek): 7.3 mm · DX900: 17 mm
  • HeightDX900: 47.3 mm shorterDX900: 106 mm · A77 (Mediatek): 153.3 mm
  • Release year2009 / 2017DX900: 2009 · A77 (Mediatek): 2017

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.

Front
DX900: 106 × 60.5 mm 1 A77 (Mediatek): 153.3 × 75.2 mm 2
Side
DX900: 106 × 17 mm 1 A77 (Mediatek): 153.3 × 7.3 mm 2
  1. 1. DX900
    Height
    106 mm
    Width
    60.5 mm
    Depth
    17 mm+9.7 mm versus A77 (Mediatek)
    Weight
    147 g
  2. 2. A77 (Mediatek)
    Height
    153.3 mm+47.3 mm versus DX900
    Width
    75.2 mm+14.7 mm versus DX900
    Depth
    7.3 mm
    Weight
    153 g
Weight

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

  1. 1. DX900147 g
  2. 2. A77 (Mediatek)153 g

    +6 g versus DX900

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.

Screen size
DX900: 2.8 in, 4:3, About 24.3 cm² rectangular area 1 A77 (Mediatek): 5.5 in, 16:9, About 83.4 cm² rectangular area 2
  1. 1. DX900 2.8 in · 4:3 About 24.3 cm² rectangular area
  2. 2. A77 (Mediatek) 5.5 in · 16:9 About 83.4 cm² rectangular area

A77 (Mediatek) has approximately 243.5% 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

A77 (Mediatek): Original memory entry

64 GB · 512GB 4GB

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. A77 (Mediatek)

NFC
Unknown
Headphone jack
Yes
Memory card support
See details microSD · up to 256 GB (uses SIM 2 slot)

Battery capacity

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

Recorded capacity

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

  1. 1. DX9001530 mAh
  2. 2. A77 (Mediatek)3200 mAh

    +1670 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. A77 (Mediatek)

Everyday essentials
Everyday essentials
SpecificationDX900A77 (Mediatek)
Dimensions (HxWxD)
  • 106 Х 60.5 Х 17 mm
  • 153.3 Х 75.2 Х 7.3 mm
Weight
  • 147 g
  • 153 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 5.5" inch
Screen resolution
  • 480 x 640 px
  • 1080 x 1920 px
Internal memoryRecorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 256 MB ROM
  • 64 GB
  • 512GB 4GB
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
BatteryCapacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Po
  • 3200 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 6 (Marshmallow); ColorOS 3
Chipset Unknown
  • Mediatek MT6750T (28 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • panorama
  • Yes
Display
Display
SpecificationDX900A77 (Mediatek)
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 83.4 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 37.9%
  • 72.3%
PPI /points per inch/
  • 286 PPI
  • 401 PPI
Camera and Video
Camera and Video
SpecificationDX900A77 (Mediatek)
Rear camera, main
  • 3.15 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 13 MP
  • PDAF
  • f/2.2
Functions
  • Dual-LED flash
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 16 MP
  • Single
Specifications
  • VGA videocall camera
  • 16 MP
  • f/2.0
  • 1/3''
  • 1.12µm
Performance
Performance
SpecificationDX900A77 (Mediatek)
Processor CPU
  • 533 MHz Samsung S3C 6410
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Mali-T860MP2
General specs
General specs
SpecificationDX900A77 (Mediatek)
Release date
  • 2009
  • February
  • 2017
  • May
Colors
  • Black
  • Gold
  • Rose Gold
  • Black
Historical recorded priceLegacy catalogue value; date unknown. Not a current offer.
  • 90 EUR
  • 310 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to10 h
Unknown
Communication and Connectivity
Communication and Connectivity
SpecificationDX900A77 (Mediatek)
SIM card
  • Dual SIM (Mini-SIM)
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
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 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA
  • LTE
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • SiRF Star III chipset
  • Yes
  • with A-GPS
USB
  • miniUSB
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • microUSB 2.0
  • A2DP
  • 4.0
  • A2DP
Music and Audio
Music and Audio
SpecificationDX900A77 (Mediatek)
Radio
  • panorama
  • No
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic
Other features
Other features
SpecificationDX900A77 (Mediatek)
Dop
  • Sensors Accelerometer Pocket Office -Voice memo -MP3 player Also known as Acer Tempo DX900
  • Acer Tempo X960
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • proximity
  • compass

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