HTC U12 life vs Lava Iris 503

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.

  • Width

    Iris 503: 2.1 mm narrower

    U12 life:
    75.4 mm
    Iris 503:
    73.3 mm
  • Screen diagonal

    Iris 503: 1 in smaller diagonal

    U12 life:
    6 in
    Iris 503:
    5 in
  • Rear camera layout

    U12 life:
    Dual
    Iris 503:
    Single
  • Depth

    U12 life: 2.2 mm thinner

    U12 life:
    8.3 mm
    Iris 503:
    10.5 mm
  • Height

    Iris 503: 15.3 mm shorter

    U12 life:
    158.5 mm
    Iris 503:
    143.2 mm
  • Release year

    U12 life:
    2018
    Iris 503:
    2013

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. U12 life

    Height:
    158.5 mm +15.3 mm versus Iris 503
    Width:
    75.4 mm +2.1 mm versus Iris 503
    Depth:
    8.3 mm
  2. 2. Iris 503

    Height:
    143.2 mm
    Width:
    73.3 mm
    Depth:
    10.5 mm +2.2 mm versus U12 life

Weight

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

  1. 1. U12 life

    175 g

  2. 2. Iris 503

    175 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. U12 life

    Screen diagonal:
    6 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    92.9 cm²
  2. 2. Iris 503

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

U12 life has approximately 34.8% more rectangular screen area than Iris 503.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

U12 life: Original memory entry

128 GB · 6 GB RAM 64 GB · 512GB 4GB

Iris 503: 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. U12 life

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB (uses SIM 2 slot)

2. Iris 503

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. U12 life

    3600 mAh

    +1600 mAh versus Iris 503

  2. 2. Iris 503

    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. U12 life2. Iris 503

Everyday essentials
Everyday essentials — specifications for U12 life, Iris 503.
SpecificationU12 lifeIris 503
Dimensions (HxWxD)
  • 158.5 Х 75.4 Х 8.3 mm
  • 143.2 Х 73.3 Х 10.5 mm
Weight
  • 175 g
  • 175 g
Technology Unknown
  • IPS LCD
Screen size
  • 6" inch
  • 5" inch
Screen resolution
  • 1080 x 2160 px
  • 540 x 960 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 6 GB RAM 64 GB
  • 512GB 4GB
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 512 GB (uses SIM 2 slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3600 mAh
  • Non-removable Li-Ion
  • 2000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Android 4.2 (Jelly Bean)
Chipset
  • Qualcomm SDM636 Snapdragon 636 (14 nm)
Unknown
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for U12 life, Iris 503.
SpecificationU12 lifeIris 503
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 92.9 cm2
  • 68.9 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 77.7%
  • 65.7%
PPI /points per inch/
  • 402 PPI
  • 220 PPI
Camera and Video
Camera and Video — specifications for U12 life, Iris 503.
SpecificationU12 lifeIris 503
Rear camera, main
  • 16 MP
  • Dual
  • 3.15 MP
  • Single
Camera specs
  • 16 MP
  • f/2.0
  • PDAF -5 MP
  • depth sensor
  • 3.15 MP
Functions
  • LED flash
  • HDR
  • panorama
  • panorama
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 13 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 13 MP
  • f/2.0
  • 1.3 MP
Performance

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

Performance — specifications for U12 life, Iris 503.
SpecificationU12 lifeIris 503
Processor CPU
  • Octa-core 1.8 GHz Kryo 260
  • Dual-core 1.0 GHz
Graphics processor GPU
  • Adreno 509
  • Mali-400
Antutu 7 score *
  • 115437
Unknown
GeekBench 4 Single Core *
  • 1350
Unknown
GeekBench 4 Multi-Core *
  • 4989
Unknown
General specs
General specs — specifications for U12 life, Iris 503.
SpecificationU12 lifeIris 503
Release date
  • 2018
  • August
  • 2013
  • October
Colors
  • Moonlight Blue
  • Twilight Purple
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 300 EUR
  • 90 EUR
Body build
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for U12 life, Iris 503.
SpecificationU12 lifeIris 503
SIM card
  • Single SIM (Nano-SIM)Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 20(800)
  • 28(700)
  • 32(1500)
  • 38(2600)
  • 40(2300)
  • 66(1700/2100)
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat11 600/75 Mbps
  • HSPA
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
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • Yes
Music and Audio
Music and Audio — specifications for U12 life, Iris 503.
SpecificationU12 lifeIris 503
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for U12 life, Iris 503.
SpecificationU12 lifeIris 503
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Charging 5V/2A 10W
  • Sensors Accelerometer For India