Asus Zenfone 2 ZE550ML vs Sony Xperia U

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

    Xperia U: 60 g lighter

    Zenfone 2 ZE550ML:
    170 g
    Xperia U:
    110 g
  • Width

    Xperia U: 23.2 mm narrower

    Zenfone 2 ZE550ML:
    77.2 mm
    Xperia U:
    54 mm
  • Screen diagonal

    Xperia U: 2 in smaller diagonal

    Zenfone 2 ZE550ML:
    5.5 in
    Xperia U:
    3.5 in
  • Depth

    Zenfone 2 ZE550ML: 1.1 mm thinner

    Zenfone 2 ZE550ML:
    10.9 mm
    Xperia U:
    12 mm
  • Height

    Xperia U: 40.5 mm shorter

    Zenfone 2 ZE550ML:
    152.5 mm
    Xperia U:
    112 mm
  • Release year

    Zenfone 2 ZE550ML:
    2015
    Xperia U:
    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. Zenfone 2 ZE550ML

    Height:
    152.5 mm +40.5 mm versus Xperia U
    Width:
    77.2 mm +23.2 mm versus Xperia U
    Depth:
    10.9 mm
  2. 2. Xperia U

    Height:
    112 mm
    Width:
    54 mm
    Depth:
    12 mm +1.1 mm versus Zenfone 2 ZE550ML

Weight

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

  1. 1. Zenfone 2 ZE550ML

    170 g

    +60 g versus Xperia U

  2. 2. Xperia U

    110 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. Zenfone 2 ZE550ML

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Xperia U

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

Zenfone 2 ZE550ML has approximately 146.9% more rectangular screen area than Xperia U.

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 Zenfone 2 ZE550ML, Xperia U, compared at the same storage capacity.
StorageZenfone 2 ZE550MLXperia U
16 GB 2 GB RAM Unknown
Xperia U: Original memory entry

8 GB (4 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. Zenfone 2 ZE550ML

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

2. Xperia U

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. Zenfone 2 ZE550ML

    3000 mAh

    +1680 mAh versus Xperia U

  2. 2. Xperia U

    1320 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. Zenfone 2 ZE550ML2. Xperia U

Everyday essentials
Everyday essentials — specifications for Zenfone 2 ZE550ML, Xperia U.
SpecificationZenfone 2 ZE550MLXperia U
Dimensions (HxWxD)
  • 152.5 Х 77.2 Х 10.9 mm
  • 112 Х 54 Х 12 mm
Weight
  • 170 g
  • 110 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.5" inch
  • 3.5" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16 GB
  • 2 GB RAM
  • 8 GB (4 GB user available)
  • 512 MB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Po
  • 1320 mAh
  • Removable Li-Ion
Operating system OS
  • Android 5.0 (Lollipop)
  • upgradable to 6.0 (Marshmallow); ZenUI
  • Android 2.3 (Gingerbread)
  • upgradable to 4.0 (Ice Cream Sandwich)
Chipset
  • Intel Atom Z3560
  • NovaThor U8500
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zenfone 2 ZE550ML, Xperia U.
SpecificationZenfone 2 ZE550MLXperia U
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 33.8 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 70.8%
  • 55.8%
PPI /points per inch/
  • 267 PPI
  • 280 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Scratch-resistant glass
Camera and Video
Camera and Video — specifications for Zenfone 2 ZE550ML, Xperia U.
SpecificationZenfone 2 ZE550MLXperia U
Rear camera, main
  • 13 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • f/2.0
  • 5 MP
  • AF
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
  • LED flash
  • panorama
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 5 MP
  • f/2.0
  • VGA
Performance

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

Performance — specifications for Zenfone 2 ZE550ML, Xperia U.
SpecificationZenfone 2 ZE550MLXperia U
Processor CPU
  • Quad-core 1.8 GHz
  • Dual-core 1.0 GHz Cortex-A9
Graphics processor GPU
  • PowerVR G6430
  • Mali-400
Antutu 7 score *
  • 41152
  • 9020
GeekBench 4 Single Core * Unknown
  • 275
GeekBench 4 Multi-Core * Unknown
  • 493
General specs
General specs — specifications for Zenfone 2 ZE550ML, Xperia U.
SpecificationZenfone 2 ZE550MLXperia U
Release date
  • 2015
  • March
  • 2012
  • February
Colors
  • Osmium Black
  • Glamor Red
  • Ceramic White
  • Black
  • White/ exchangeable bottom caps in white
  • Pink
  • Yellow
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 250 EUR
  • 140 EUR
Battery life Unknown
  • Stand by time- Up to 260 h (2G) / Up to 472 h (3G) Talking time- Up to 6 h 36 min (2G) / Up to 5 h 36 min (3G) Music play - Up to 45 h
Communication and Connectivity
Communication and Connectivity — specifications for Zenfone 2 ZE550ML, Xperia U.
SpecificationZenfone 2 ZE550MLXperia U
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA - China & India -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 8(900)
  • 28(700) - Taiwan LTE band 1(2100)
  • 7(2600)
  • 20(800) - Global LTE band 1(2100)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - China & India
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 14.4/5.76 Mbps
GPRS
  • Yes
  • Up to 107 kbps
Edge
  • Yes
  • Up to 296 kbps
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • DLNA
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
  • USB Host
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 2.1
  • A2DP
  • EDR
Harmful irradiation
  • SAR EU - 0.35 W/kg (head)
  • SAR - 1.09 W/kg (head) 0.93 W/kg (body) SAR EU - 1.62 W/kg (head)
Music and Audio
Music and Audio — specifications for Zenfone 2 ZE550ML, Xperia U.
SpecificationZenfone 2 ZE550MLXperia U
Radio
  • FM radio
  • Stereo FM radio
  • RDS
Others Unknown
  • Sony 3D surround sound audio technology -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Zenfone 2 ZE550ML, Xperia U.
SpecificationZenfone 2 ZE550MLXperia U
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Accelerometer
  • proximity
  • compass - Previously known as Sony Ericsson ST25i Kumquat