Celkon A20 vs HTC U12+

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

    A20: 2 in smaller diagonal

    A20:
    4 in
    U12+:
    6 in
  • Rear camera layout

    A20:
    Single
    U12+:
    Dual
  • Release year

    A20:
    2013
    U12+:
    2018

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. A20

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

    Unavailable dimensions are omitted from the drawing.

  2. 2. U12+

    Height:
    156.6 mm
    Width:
    73.9 mm
    Depth:
    8.7 mm
    Weight:
    188 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. A20

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²
  2. 2. U12+

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

U12+ has approximately 104% more rectangular screen area than A20.

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 A20, U12+, compared at the same storage capacity.
StorageA20U12+
64 GB Unknown 6 GB RAM
128 GB Unknown 6 GB RAM
A20: Original memory entry

256 MB · 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. A20

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

2. U12+

NFC:
Yes
Headphone jack:
No
Memory card support:
See details microSD · up to 512 GB (uses SIM 2 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. A20

    1500 mAh

  2. 2. U12+

    3500 mAh

    +2000 mAh versus A20

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. A202. U12+

Everyday essentials
Everyday essentials — specifications for A20, U12+.
SpecificationA20U12+
Dimensions (HxWxD)
  • Х Х mm
  • 156.6 Х 73.9 Х 8.7 mm
Weight
  • 0 g
  • 188 g
Technology
  • TFT
  • Super LCD6
Screen size
  • 4" inch
  • 6" inch
Screen resolution
  • 480 x 800 px
  • 1440 x 2880 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB
  • 512 MB RAM
  • 64/128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 512 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Li-Ion
  • 3500 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 4.2.0 (Jelly Bean)
  • Android 8.0 (Oreo)
  • planned upgrade to Android 9.0 (Pie); Sense UI
Chipset Unknown
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • No
Display
Display — specifications for A20, U12+.
SpecificationA20U12+
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 92.9 cm2
Screen format
  • 5:3 (height:width)
  • 18:9 (height:width)
Screen to body ratio Unknown
  • 80.3%
PPI /points per inch/
  • 233 PPI
  • 537 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video

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

Camera and Video — specifications for A20, U12+.
SpecificationA20U12+
Rear camera, main
  • 3.15 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 3.15 MP
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • OIS
  • dual pixel PDAF & laser AF
  • OIS -16 MP (12 MP effective)
  • f/2.6
  • 1.0µm
  • 2x optical zoom
  • AF
Functions Unknown
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Dual
Specifications
  • VGA
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm 8 MP
  • 1.12µm
DxOMark Main Score * Unknown
  • 103
DxOMark Photo * Unknown
  • 106
DxOMark Video * Unknown
  • 95
Performance

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

Performance — specifications for A20, U12+.
SpecificationA20U12+
Processor CPU
  • Dual-core 1.2 GHz
  • Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
Graphics processor GPU Unknown
  • Adreno 630
Antutu 7 score * Unknown
  • 275302
GeekBench 4 Single Core * Unknown
  • 2406
GeekBench 4 Multi-Core * Unknown
  • 8712
GeekBench 4 RenderScript * Unknown
  • 13476
GeekBench 5 Single Core * Unknown
  • 507
GeekBench 5 Multi-Core * Unknown
  • 2082
General specs
General specs — specifications for A20, U12+.
SpecificationA20U12+
Release date
  • 2013
  • August
  • 2018
  • May
Colors
  • Black
  • Translucent Blue
  • Ceramic Black
  • Flame red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 60 EUR
  • 650 EUR
Battery life Unknown
  • Talking time- Up to 24 h (3G)
Body build Unknown
  • Front/back glass & aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for A20, U12+.
SpecificationA20U12+
SIM card
  • Dual SIM (Mini-SIM)
  • Single SIM (Nano-SIM)Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 13(700)
  • 17(700)
  • 20(800)
  • 28(700)
  • 32(1500)
  • 38(2600)
  • 39(1900)
  • 49
  • 41(2500)
  • 66(1700/2100)
Speed
  • Yes
  • 384 kbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (5CA) Cat18 1200/150 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • 3.1
  • Type-C 1.0 reversible connector
Bluetooth
  • Yes
  • 5.0
  • A2DP
  • aptX HD
  • LE
Harmful irradiation
  • SAR EU - 0.88 W/kg (head) 0.60 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for A20, U12+.
SpecificationA20U12+
Radio Unknown
  • No
Others Unknown
  • DCI-P3 -HDR10
  • 32-bit/384kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for A20, U12+.
SpecificationA20U12+
Dop
  • Sensors Proximity
  • gyro
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 50% in 35 min (Quick Charge 3.0) - IP68 dust/water proof (up to 1.5m for 30 mins) -Pressure-sensitive buttons