Asus ROG Phone vs Celkon A66

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

    A66: 102 g lighter

    ROG Phone:
    200 g
    A66:
    98 g
  • Width

    A66: 9 mm narrower

    ROG Phone:
    76.2 mm
    A66:
    67.2 mm
  • Screen diagonal

    A66: 1.5 in smaller diagonal

    ROG Phone:
    6 in
    A66:
    4.5 in
  • Rear camera layout

    ROG Phone:
    Dual
    A66:
    Single
  • Depth

    ROG Phone: 2.7 mm thinner

    ROG Phone:
    8.3 mm
    A66:
    11 mm
  • Height

    A66: 22.8 mm shorter

    ROG Phone:
    158.8 mm
    A66:
    136 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. ROG Phone

    Height:
    158.8 mm +22.8 mm versus A66
    Width:
    76.2 mm +9 mm versus A66
    Depth:
    8.3 mm
  2. 2. A66

    Height:
    136 mm
    Width:
    67.2 mm
    Depth:
    11 mm +2.7 mm versus ROG Phone

Weight

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

  1. 1. ROG Phone

    200 g

    +102 g versus A66

  2. 2. A66

    98 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. ROG Phone

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    92.9 cm²
  2. 2. A66

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

ROG Phone has approximately 66.4% more rectangular screen area than A66.

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 ROG Phone, A66, compared at the same storage capacity.
StorageROG PhoneA66
128 GB 8 GB RAM Unknown
512 GB 8 GB RAM Unknown
A66: Original memory entry

4 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. ROG Phone

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

2. A66

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

    4000 mAh

    +2000 mAh versus A66

  2. 2. A66

    2000 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. ROG Phone2. A66

Everyday essentials
Everyday essentials — specifications for ROG Phone, A66.
SpecificationROG PhoneA66
Dimensions (HxWxD)
  • 158.8 Х 76.2 Х 8.3 mm
  • 136 Х 67.2 Х 11 mm
Weight
  • 200 g
  • 98 g
Technology
  • AMOLED
  • TFT
Screen size
  • 6" inch
  • 4.5" inch
Screen resolution
  • 1080 x 2160 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128/512 GB
  • 8 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • No
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Ion
  • 2000 mAh
  • Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • planned upgrade to Android 9.0 (Pie); ROG Gaming X UI
  • Android 4.1.2 (Jelly Bean)
Chipset
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for ROG Phone, A66.
SpecificationROG PhoneA66
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 92.9 cm2
  • 55.8 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 76.8%
  • 61.1%
PPI /points per inch/
  • 402 PPI
  • 218 PPI
Screen protection
  • Corning Gorilla Glass 6
Unknown
Camera and Video
Camera and Video — specifications for ROG Phone, A66.
SpecificationROG PhoneA66
Rear camera, main
  • 12 MP
  • Dual
  • 3.15 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 24mm (wide)
  • 1/2.55''
  • 1.4µm
  • 4-axis OIS
  • dual pixel PDAF -8 MP
  • 12mm
  • no AF
  • 3.15 MP
Functions
  • panorama
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 24mm (wide)
  • VGA
Performance

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

Performance — specifications for ROG Phone, A66.
SpecificationROG PhoneA66
Processor CPU
  • Octa-core (4x2.96 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
  • Dual-core 1.2 GHz
Graphics processor GPU
  • Adreno 630
Unknown
Antutu 7 score *
  • 304258
Unknown
GeekBench 4 Single Core *
  • 2474
Unknown
GeekBench 4 Multi-Core *
  • 8953
Unknown
GeekBench 4 RenderScript *
  • 13801
Unknown
GeekBench 4 Battery *
  • 3770
Unknown
GeekBench 5 Single Core *
  • 511
Unknown
GeekBench 5 Multi-Core *
  • 2176
Unknown
General specs
General specs — specifications for ROG Phone, A66.
SpecificationROG PhoneA66
Release date
  • 2018
  • June
  • 2014
Colors
  • Black
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 950 EUR
Unknown
Battery life Unknown
  • Stand by time- Up to 160 h Talking time- Up to 5 h
Body build
  • Front glass (Gorilla Glass 6) /back glass (Gorilla Glass 5) & aluminum frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for ROG Phone, A66.
SpecificationROG PhoneA66
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA - B version -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 - A version
  • B version -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 13(700)
  • 17(700)
  • 18(800)
  • 19(800)
  • 20(800)
  • 28(700)
  • 29(700)
  • 32(1500)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • 46 - A version
  • B version
Unknown
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (5CA) Cat18 1200/150 Mbps
Unknown
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac/ad
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
  • Yes
USB
  • 3.1
  • Type-C 1.0 reversible connector; accessory connector
  • microUSB
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX HD
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.38 W/kg (head) 0.47 W/kg (body)
Music and Audio
Music and Audio — specifications for ROG Phone, A66.
SpecificationROG PhoneA66
Radio
  • FM radio
  • FM radio
Others
  • 108.6% DCI-P3 color gamut -Wide Colour Gamut -HDR -90 Hz (1ms pixel response time) -Always-on display
  • 24-bit/192kHz audio -DTS Headphone X -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for ROG Phone, A66.
SpecificationROG PhoneA66
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 10V/3A 30W (Quick Charge 4+) - 3 Ultrasonic pressure sensitive zones -Water resistant
  • Sensors Accelerometer
  • proximity