HTC One Max vs Karbonn A15

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.

  • Screen diagonal

    A15: 1.9 in smaller diagonal

    One Max:
    5.9 in
    A15:
    4 in
  • Release year

    One Max:
    2013
    A15:
    2012

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. One Max

    Height:
    164.5 mm
    Width:
    82.5 mm
    Depth:
    10.3 mm
    Weight:
    217 g
  2. 2. A15

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown
    Weight:
    Unknown

    Unavailable dimensions are omitted from the drawing.

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. One Max

    Screen diagonal:
    5.9 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    96 cm²
  2. 2. A15

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

One Max has approximately 110.7% more rectangular screen area than A15.

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 One Max, A15, compared at the same storage capacity.
StorageOne MaxA15
16 GB 2 GB RAM Unknown
32 GB 2 GB RAM Unknown
A15: Original memory entry

4 GB (2.5 GB user available) · 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. One Max

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB (dedicated slot)

2. A15

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

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. One Max

    3300 mAh

    +1880 mAh versus A15

  2. 2. A15

    1420 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. One Max2. A15

Everyday essentials
Everyday essentials — specifications for One Max, A15.
SpecificationOne MaxA15
Dimensions (HxWxD)
  • 164.5 Х 82.5 Х 10.3 mm
  • Х Х mm
Weight
  • 217 g
  • 0 g
Technology
  • Super LCD3
  • TFT
Screen size
  • 5.9" inch
  • 4" inch
Screen resolution
  • 1080 x 1920 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32 GB
  • 2 GB RAM
  • 4 GB (2.5 GB user available)
  • 512 MB RAM
Memory card support
  • microSD
  • up to 64 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3300 mAh
  • Non-removable Li-Po
  • 1420 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.3 (Jelly Bean)
  • upgradable to 5.0 (Lollipop); Sense UI 5.5
  • Android 4.0.4 (Ice Cream Sandwich)
Chipset
  • Qualcomm APQ8064 Snapdragon 600
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for One Max, A15.
SpecificationOne MaxA15
Touchscreen
  • capacitive touchscreen
  • touchscreen
Display colors
  • 16M
Unknown
Screen area
  • 96.0 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 70.7%
Unknown
PPI /points per inch/
  • 373 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for One Max, A15.
SpecificationOne MaxA15
Rear camera, main
  • 4 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 4 MP
  • 1/3''
  • 2µm
  • AF
  • 3.15 MP
Functions
  • HDR
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 2.1 MP
  • Single
  • 0 MP,
Specifications
  • 2.1 MP
Unknown
Performance

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

Performance — specifications for One Max, A15.
SpecificationOne MaxA15
Processor CPU
  • Quad-core 1.7 GHz Krait 300
  • 1.0 GHz
Graphics processor GPU
  • Adreno 320
Unknown
Antutu 7 score *
  • 26775
Unknown
GeekBench 4 Single Core *
  • 645
Unknown
GeekBench 4 Multi-Core *
  • 1903
Unknown
General specs
General specs — specifications for One Max, A15.
SpecificationOne MaxA15
Release date
  • 2013
  • October
  • 2012
Colors
  • Silver
  • Black
  • Gold
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 370 EUR
  • 80 EUR
Battery life
  • Stand by time- Up to 585 h (3G) Talking time- Up to 25 h (3G)
  • Stand by time- Up to 150 h
Communication and Connectivity
Communication and Connectivity — specifications for One Max, A15.
SpecificationOne MaxA15
SIM card
  • Micro-SIM
  • Dual SIM (Mini-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900 - for Verizon
  • Sprint -3G - HSDPA 900 / 1900 / 2100 - EMEA HSDPA 850 / 900 / 1900 / 2100 - Asia HSDPA 1900 / 2100 - for Sprint -4G - LTE band 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - EMEA LTE band 1(2100)
  • 3(1800)
  • 8(900) - Asia LTE band 4(1700/2100)
  • 13(700) - Verison
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA
  • LTE Cat3 100/50 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • Wi-Fi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0 (MHL TV-out)
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • aptX
  • 2.0
Harmful irradiation
  • SAR - 0.81 W/kg (head) 0.21 W/kg (body)
  • SAR - 0.59 W/kg (head)
Music and Audio
Music and Audio — specifications for One Max, A15.
SpecificationOne MaxA15
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others
  • BoomSound dual front stereo speakers -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for One Max, A15.
SpecificationOne MaxA15
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Available as HTC One Max Dual SIM for China
  • Sensors Accelerometer