Archos Diamond Alpha vs Oppo A57

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

    A57: 8 g lighter

    Diamond Alpha:
    155 g
    A57:
    147 g
  • Chipset

    Diamond Alpha:
    Qualcomm MSM8976 Snapdragon 652 (28 nm)
    A57:
    Qualcomm MSM8940 Snapdragon 435 (28 nm)
  • Height

    Diamond Alpha: 2.4 mm shorter

    Diamond Alpha:
    146.7 mm
    A57:
    149.1 mm
  • Release year

    Diamond Alpha:
    2017
    A57:
    2016

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. Diamond Alpha

    Height:
    146.7 mm
    Width:
    72.5 mm
    Depth:
    7.5 mm
  2. 2. A57

    Height:
    149.1 mm +2.4 mm versus Diamond Alpha
    Width:
    72.9 mm
    Depth:
    7.7 mm

Weight

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

  1. 1. Diamond Alpha

    155 g

    +8 g versus A57

  2. 2. A57

    147 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. Diamond Alpha

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²
  2. 2. A57

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²

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.

Recorded RAM for Diamond Alpha, A57, compared at the same storage capacity.
StorageDiamond AlphaA57
32 GB Unknown 3 GB RAM
Diamond Alpha: Original memory entry

up to 64 GB (dedicated slot) · 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. Diamond Alpha

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

2. A57

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB

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. Diamond Alpha

    2950 mAh

    +50 mAh versus A57

  2. 2. A57

    2900 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. Diamond Alpha2. A57

Everyday essentials
Everyday essentials — specifications for Diamond Alpha, A57.
SpecificationDiamond AlphaA57
Dimensions (HxWxD)
  • 146.7 Х 72.5 Х 7.5 mm
  • 149.1 Х 72.9 Х 7.7 mm
Weight
  • 155 g
  • 147 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.2" inch
  • 5.2" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • up to 64 GB (dedicated slot)
  • 512GB 4GB
  • 32 GB
  • 3 GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses SIM 2 slot)
  • microSD
  • up to 256 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2950 mAh
  • Non-removable Li-Ion
  • 2900 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 6 (Marshmallow); ColorOS 3
Chipset
  • Qualcomm MSM8976 Snapdragon 652 (28 nm)
  • Qualcomm MSM8940 Snapdragon 435 (28 nm)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Diamond Alpha, A57.
SpecificationDiamond AlphaA57
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 74.5 cm2
  • 74.5 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 70.1%
  • 68.6%
PPI /points per inch/
  • 424 PPI
  • 282 PPI
Screen protection Unknown
  • Corning Gorilla Glass 4
Camera and Video
Camera and Video — specifications for Diamond Alpha, A57.
SpecificationDiamond AlphaA57
Rear camera, main
  • 13 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 13 MP
  • 1/2.9''
  • 1.25µm
  • PDAF -13 MP B/W
  • 13 MP
  • PDAF
  • f/2.2
Functions
  • Dual-LED flash
  • HDR
  • panorama
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 16 MP
  • f/2.2
  • 16 MP
  • f/2.0
  • 1.12µm
  • AF
Performance

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

Performance — specifications for Diamond Alpha, A57.
SpecificationDiamond AlphaA57
Processor CPU
  • Octa-core (4x1.8 GHz Cortex-A72 & 4x1.4 GHz Cortex-A53)
  • Octa-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • Adreno 510
  • Adreno 505
Antutu 7 score *
  • 73625
  • 46782
GeekBench 4 Single Core * Unknown
  • 657
GeekBench 4 Multi-Core * Unknown
  • 2764
GeekBench 4 RenderScript * Unknown
  • 2302
General specs
General specs — specifications for Diamond Alpha, A57.
SpecificationDiamond AlphaA57
Release date
  • 2017
  • June
  • 2016
  • November
Colors
  • Black
  • Black
  • Gold
  • Rose Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 350 EUR
  • 200 EUR
Battery life
  • Stand by time- Up to 320 h (3G) Talking time- Up to 11 h (3G)
Unknown
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Diamond Alpha, A57.
SpecificationDiamond AlphaA57
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 20(800)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
  • USB Host
Bluetooth
  • Android 4.4.2 (KitKat)
  • A2DP
  • Super AMOLED
  • 4.1
  • A2DP
Harmful irradiation
  • SAR EU - 1.02 W/kg (head) 0.76 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Diamond Alpha, A57.
SpecificationDiamond AlphaA57
Radio
  • panorama
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Diamond Alpha, A57.
SpecificationDiamond AlphaA57
Dop
  • Sensors Fingerprint (rear-mounted)
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - For Europe
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • proximity
  • compass - Also known as Oppo F3 Lite in Vietnam