Celkon A64 vs Oppo R15x

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

    A64: 30.4 g lighter

    A64:
    125.6 g
    R15x:
    156 g
  • Width

    A64: 10.5 mm narrower

    A64:
    65 mm
    R15x:
    75.5 mm
  • Screen diagonal

    A64: 2.4 in smaller diagonal

    A64:
    4 in
    R15x:
    6.4 in
  • Rear camera layout

    A64:
    Single
    R15x:
    Dual
  • Depth

    R15x: 3.1 mm thinner

    A64:
    10.5 mm
    R15x:
    7.4 mm
  • Height

    A64: 34.3 mm shorter

    A64:
    124 mm
    R15x:
    158.3 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. A64

    Height:
    124 mm
    Width:
    65 mm
    Depth:
    10.5 mm +3.1 mm versus R15x
  2. 2. R15x

    Height:
    158.3 mm +34.3 mm versus A64
    Width:
    75.5 mm +10.5 mm versus A64
    Depth:
    7.4 mm

Weight

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

  1. 1. A64

    125.6 g

  2. 2. R15x

    156 g

    +30.4 g versus A64

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. A64

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    47.6 cm²
  2. 2. R15x

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.5 cm²

R15x has approximately 111% more rectangular screen area than A64.

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 A64, R15x, compared at the same storage capacity.
StorageA64R15x
128 GB Unknown 6 GB RAM
A64: 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. A64

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

2. R15x

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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. A64

    1400 mAh

  2. 2. R15x

    3600 mAh

    +2200 mAh versus A64

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. A642. R15x

Everyday essentials
Everyday essentials — specifications for A64, R15x.
SpecificationA64R15x
Dimensions (HxWxD)
  • 124 Х 65 Х 10.5 mm
  • 158.3 Х 75.5 Х 7.4 mm
Weight
  • 125.6 g
  • 156 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 4" inch
  • 6.4" inch
Screen resolution
  • 320 x 480 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Li-Ion
  • 3600 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.2.2 (Jelly Bean)
  • Android 8.1 (Oreo); ColorOS 5.2
Chipset Unknown
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A64, R15x.
SpecificationA64R15x
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 47.6 cm2
  • 101.0 cm2
Screen format
  • 3:2 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 59.1%
  • 84.5%
PPI /points per inch/
  • 144 PPI
  • 402 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for A64, R15x.
SpecificationA64R15x
Rear camera, main
  • 2 MP
  • Single
  • 16 MP
  • Dual
Camera specs
  • 2 MP
  • 16 MP
  • f/1.7
  • 1/2.8''
  • 1.12µm
  • PDAF -2 MP
  • depth sensor
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 25 MP
  • Single
Specifications
  • VGA
  • 25 MP
  • f/2.0
  • 1/2.8''
  • 0.9μm
Performance

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

Performance — specifications for A64, R15x.
SpecificationA64R15x
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core (4x2.0 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU Unknown
  • Adreno 512
Antutu 7 score * Unknown
  • 143726
General specs
General specs — specifications for A64, R15x.
SpecificationA64R15x
Release date
  • 2014
  • 2018
  • October
Colors
  • White
  • Black
  • Nebula
  • Silver Green
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 350 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 8 h 20 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A64, R15x.
SpecificationA64R15x
SIM card
  • Dual SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 1700(AWS) / 2100 / 900 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 а/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • Yes
  • with A-GPS
USB
  • microUSB
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 2.0
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.42 W/kg (head) 0.55 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A64, R15x.
SpecificationA64R15x
Radio
  • FM radio
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A64, R15x.
SpecificationA64R15x
Dop
  • Sensors Accelerometer
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 5V/2A 10W - Incomplete preliminary specifications